How many water molecules are in 5.2 moles of H20?

Answers

Answer 1

Answer:  There are therefore 6.02 × 1023 water molecules in a mole of water molecules.

Explanation: Hope this helps


Related Questions

Someone help with this question

Answers

Answer:

the answer is D the dominant over powers the resecive traits

what is the formula for carbon decabromide?

Answers

Answer:

CBr4

Explanation:

Answer:

CBr4

Explanation:

It is CBr4 I hope it helps

How many moles of MgO are produced if 0.37 moles of O2 react with excess of Mg?

Answers

Answer:

yez so the answer is mg 1.0

Explanation:

The excess reactant is present in an amount that is greater than required. The amount of MgO that is produced in the reaction is 0.74 moles.

What is an excess reactant?

An excess reactant is that reantant thatis present in an amount that is more than required.

Now we are told that the magnessium is the reactant in excess so we have to use the amount of oxygen.

The reaction is: 2Mg + O2 ---->2MgO

1 mole of O2 produces 2 mole of MgO

0.37 moles of O2 produces 0.37 moles  * 2 moles/1 mole

= 0.74 moles

Learn more about excess reactant: https://brainly.com/question/365923

(Help would be greatly appreciated) What is the molarity of 3 moles of HCl in 3 L of water?
1. 3M
2. 1M
3. 6M
4. 9M

Answers

Answer:

1 M

Explanation:

Molarity is moles per liter (mol/L).

You have 3 moles of HCl in 3 L of water.  Divide the two values.

(3 mol)/(3 L)

= 1 mol/L

= 1 M

If I have 0.275 moles of gas at a temperature of 75 K and a pressure of 1530 mmHg, what is the volume of the gas?

Answers

Answer: The volume of the gas is 0.84 Liters

Explanation:

According to ideal gas equation:

[tex]PV=nRT[/tex]

P = pressure of gas = 1530 mm Hg = 2.01 atm     (760mmHg=1atm)

V = Volume of gas = ?

n = number of moles = 0.275

R = gas constant =[tex]0.0821Latm/Kmol[/tex]

T =temperature =[tex]75K[/tex]

[tex]V=\frac{nRT}{P}[/tex]

[tex]V=\frac{0.275atm\times 0.0820 Latm/K mol\times 75K}{2.01atm}=0.84L[/tex]

Thus the volume of the gas is 0.84 Liters

Electrical energy exists when charged particles attract or repel each other.

PLEASE HELP

True or false

Answers

I think true..

Explanation:

im not sure.

Which statement is not
true?
A. The troposphere is responsible for nearly
all of Earth’s weather.
B. The exosphere reaches deep into space
and is the least dense layer.
C. The thermosphere typically breaks up
meteors before they hit Earth.
D. The stratosphere allows commercial
airlines to fly with less turbulence because
of fewer convection currents.

Answers

answer: C
explanation: to make C correct, the sphere that breaks up meteors is the mesosphere.

The atmosphere of the earth is layered and each layer of the atmosphere has its own properties. The atmosphere of the earth is divided into four layers. The thermosphere typically breaks up meteors before they hit Earth is not correct. The correct option is C.

What is mesosphere?

The four important layers of atmosphere are troposphere, stratosphere, thermosphere and mesosphere. The layer of the atmosphere which is found above the stratosphere is defined as the mesosphere. It is the coldest layer of the atmosphere.

A meteor is known as a celestial object which is made up of rocks and minerals which enters the atmosphere of the earth and burns out completely before reaching the surface of the earth. It is known as the shooting star or falling star.

The temperature of mesosphere drops with altitude. By 80 km it reaches 100 degree celsius. The meteors burn up in this layer not in thermosphere.

Thus the correct option is C.

To know more about earth layers, visit;

https://brainly.com/question/13497783

#SPJ3

What determines the type of bond (single, double, or triple) an element will form?

Answers

The type of bond formed depends on the valence electrons (no: of electrons in the outermost shell)

When two atoms share one electron pair between each other, then they are said to be bonded by single covalent bond

When two atoms share two electron pairs between each other, they are said to be bonded by double covalent bond

When two atoms share three electron pairs between each other, they are said to be bonded by triple covalent bond.

Hope u understand

Please mark as the brainliest

1. A sample of naproxen has 6.022x10^23 naproxen molecules. How many moles is this?​

Answers

Answer:

0.99997661 moles

Explanation:

Answer:

ysys7sbssiej hsbed hdbd hdbd

What is the vapor pressure of propanone
at 50°C?

Answers

Answer: If we work it out with direct proportions, the vapor pressure of propanone is 56 degrees Celsius. The atmospheric pressure is about 101.

Explanation: hope this helps.

The vapor pressure of propanone at 50°C is :

- 78° vapor pressure

Propanone

When the vapor pressure is specifically work through the extents to a temperature rate it response is intensely subordinate on their possess a mass nature.

The vapor weight of propanone is calculated and shape in degree Celsius in rate.

The rate of vapor when it is calculated by 50°C with propanone its at long last gives us a 78° vapor pressure.

Learn more about "Propanone":

https://brainly.com/question/491528?referrer=searchResults

Which of the following processes is NOT a way that carbon could move between the atmosphere and the biosphere?

Question 4 options:

respiration (breathing)


combustion (burning)


deep burial, compaction, and cementation


photosynthesis

Question 5 (2 points)
What is the only natural way that carbon can move OUT of the geosphere?

Question 5 options:

burning of fossil fuels


volcanic eruptions


dissolution


decomposition

Question 6 (1 point)
Which carbon reservoir contains the MOST carbon?

Question 6 options:

fossil fuels


atmosphere


land biomass


rocks

Question 7 (2 points)
Which carbon reservoir changes the quickest and has the biggest direct effect on climate?

Question 7 options:

land biomass


ocean


atmosphere


rocks

Question 8 (2 points)
Which best describes the process of ocean acidification?

Question 8 options:

The ocean absorbs more human-produced CO2, causing the acidity to increase


The ocean releases more human-produced CO2, causing the acidity to decrease


The ocean absorbs more natural CO2, causing the acidity to decrease


The ocean receives more polluted runoff, causing the acidity to increase

Question 9 (2 points)
What is a potential impact of ocean acidification?

Question 9 options:

Animals will have a harder time building their shells


Corals may have a harder time building their skeletons


Ocean ecosystems may suffer, making it harder for humans to get food from the ocean


All of the above

Answers

Answer:

question 1 i believe is c i will put the other answeres in comments

when i finish the test

Explanation:

The carbon cycle plays an important in maintaining carbon balance on the earth.

What is the carbon cycle?

The carbon cycle is the cycle by which carbon is recycled between the atmosphere and the geosphere.

In the carbon cycle, the process of recycling carbon do not include deep burial, compaction, and cementation.

Volcanic eruptions are one natural way that carbon can move OUT of the geosphere.

Fossil fuels, atmosphere, land biomass and rocks are all carbon reservoirs, but fossil fuels contains the MOST carbon.

The atmosphere is the carbon reservoir that changes the quickest and has the biggest direct effect on climate.

Ocean acidification occurs because the ocean absorbs more human-produced CO2, causing the acidity to increase.

A potential impact of ocean acidification is that ocean ecosystems may suffer, making it harder for humans to get food from the ocean.

Therefore, the carbon cycle is important in maintaining carbon balance on the earth.

Learn more about carbon cycle at: https://brainly.com/question/25845923

*specific heat of tin: 230 | specific heat of carbon: 709*

Which will provide more thermal energy and why?

2 kg of tin at 50 C
or
2 kg of carbon at 50 C

Answers

Answer:

tin

Explanation:

since it takes less heat to change it will warm up and produce thermal energy sooner than carbon

2 kg of carbon at 50°C will provide more thermal energy than 2 kg of tin at the same temperature.

To determine which substance will provide more thermal energy, we need to calculate the thermal energy for both scenarios using the formula:

Thermal energy = mass * specific heat * temperature change

For 2 kg of tin at 50°C:

Thermal energy = 2 kg * 230 J/kg°C * (50°C - 0°C) = 23,000 J

For 2 kg of carbon at 50°C:

Thermal energy = 2 kg * 709 J/kg°C * (50°C - 0°C) = 70,900 J

Therefore, 2 kg of carbon at 50°C will provide more thermal energy than 2 kg of tin at the same temperature. This is because carbon has a higher specific heat (709 J/kg°C) compared to tin (230 J/kg°C), meaning it requires more energy to raise the temperature of carbon compared to tin. As a result, carbon can store and release more thermal energy than tin at the same temperature and mass.

To know more about thermal energy, here

brainly.com/question/3022807

#SPJ2

please help! brainliest to correct answer!!
If 80mg of a radioactive element decays to 10mg in 30 days, what is the elements
half life in minutes?

Answers

Answer: 10 minutes

Explanation:

ln(No/N) = kt

No = 80 mg

N = 10 mg

t = 30 min

solve for k, then

k = 0.693/t1/2

Substitute k from above and solve for t1/2

10 min is correct.

Explain what a convection current is and how it causes winds in the atmosphere.

Answers

It is this movement that creates circulation patterns known as convection currents in the atmosphere, in water, and in the mantle of Earth. In the atmosphere, as air warms it rises, allowing cooler air to flow in underneath. Along with the turning of the Earth, this movement of air creates winds.

HELP WITH A THESIS STATEMENT
I basically need a thesis statement on how DNA analysis relates to chemistry. The only problem is that I'm having trouble making it 'arguable'. My ideas were:
-DNA analysis relates to chemistry because it applies that knowledge when analyzing the DNA samples left at crime scenes in order to identify the suspect.
-DNA analysis relates to chemistry because it's a subcategory of chemistry, also known as forensic chemistry, where DNA left at crime scenes is analyzed to potentially link a suspect to a crime.
Do either of these sound good and are they arguable? If not can you reword it to be?

Answers

The second thesis statement is perfect. It supports the claim and presents main idea.

Which of the following is an example of acceleration?
A. A boat sits on a boat trailer.
B. A car moves in a straight line at 60 km/hr.
C. A plane moves in air at a steady speed of 850 km/hr.
D. A bus moves on a straight road and then
makes a right turn.

Answers

Answer:

it's either B. or C.. hope this helps!

Explanation:

Answer:

D. A bus moves on a straight road and then  makes a right turn.

Explanation:

Acceleration is a change in direction or speed. All of the other examples involve straight lines or constant speed.

5. How many Earths could fit between the Earth and the sun?
30
400
1200
12000

Please please please please help me

Answers

12000
You need to multiply the size of the Earth and 12000
Once you do that you get the distance between the Earth and the Sun

A bike tire at a pressure of 740 mmHg and a
temperature of 290 K has a volume of 2.2 liters.
A child gets on the bike and rides it outside.
What is the new pressure if the temperature
outside is 296 K and his weight causes the tire's
volume to drop to 2.0 liters?

Answers

Answer: The new pressure is 831 mm Hg

Explanation:

The combined gas equation is,

[tex]\frac{P_1V_1}{T_1}=\frac{P_2V_2}{T_2}[/tex]

where,

[tex]P_1[/tex] = initial pressure of gas = 740 mm Hg

[tex]P_2[/tex] = final pressure of gas = ?

[tex]V_1[/tex] = initial volume of gas = 2.2 L

[tex]V_2[/tex] = final volume of gas = 2.0 L

[tex]T_1[/tex] = initial temperature of gas = 290 K

[tex]T_2[/tex] = final temperature of gas = 296 K

Now put all the given values in the above equation, we get:

[tex]\frac{740\times 2.2}{290}=\frac{P_2\times 2.0}{296}[/tex]

[tex]P_2=831mmHg[/tex]

The new pressure is 831 mm Hg


47. How did you determine the stoichiometric coefficients of the X-630 reaction?

Answers

the sum of coefficients is given by f(1,1)=n∑k=0ck. Just write down the general formula for the binomial expansion of (a−b)n. Then consider what happens when a=b. You will see that the sum of the binomial coefficients must be equal to zero.

Which of the following statements is true?

Answers

the answer is the third one

Explanation:

it just is I think

3) A child has a toy balloon with a volume of 1.8 liters. The temperature of the balloon when it was filled was 22° C and the pressure was 1.0 atm. If the child were to let go of the balloon and it rose into the sky where the pressure is 0.86 atm and the temperature is 8° C, what would the new volume of the balloon be?​

Answers

This is a combined gas law problem, according to which

[tex]\frac{P_1V_1}{T_1} = \frac{P_2V_2}{T_2}[/tex]

where P is the pressure of the gas, V is the volume of the gas, and T is the temperature of the gas, and the subscripts 1 and 2 correspond to the initial and final conditions of the gas. In this problem, we are given the initial pressure, volume, and temperature of the gas in the balloon:

P₁ = 1.0 atm

V₁ = 1.8 L

T₁ = 295.15 K (K = °C + 273.15).

Moreover, we are given the final pressure and temperature of the gas in the balloon.

P₂ = 0.86 atm

T₂ = 281.15 K.

What we want to find is the final volume, V₂, which we can obtain by rearranging the combined gas equation to solve for V₂:

[tex]V_2=\frac{P_1V_1T_2}{T_1P_2} = \frac{(1.0 \text{ atm})(1.8 \text{ L})(281.15 \text{ K})}{(295.15 \text{ K})(0.86 \text{ atm})} \\ V_2 = 1.99 \text{ L}[/tex]

This answer has three significant figures. However, the question as written would warrant an answer that comprises one significant figure (as 8 °C has only one sig fig). In that case, the answer would be 2 L. If the answer is to be given to two significant figures, the volume would then be 2.0 L.

If the pOH of a cesium hydroxide solution is known to be 4.00. what is the (OH)? *Please round your answer to the appropriate number of significant figures. Your answer can be in standard notation o "e" in place of x10.* 1​

Answers

Answer:

i going to be aniston i would say take a gess

The acidity or alkalinity of a solution depends upon its hydronium ion concentration and hydroxide ion concentration. The concentration of OH⁻ is 1 × 10⁻⁴ M.

What is pOH?

The pOH expresses the hydroxide ion concentration of a solution. The pOH of a solution is defined as the negative logarithm to the base 10 of the value of the hydroxide ion concentration in moles per litre.

The equation used to calculate the concentration of OH⁻ is:

pOH = -log [OH⁻]

[OH⁻] = 10⁻pOH

[OH⁻] = 10⁻⁴

= 0.0001 M

The number of significant figures in a reported value is the number of digits that are known with certainty plus the last one having some uncertainty.

Here 0.0001 contains 3 significant figures. In scientific notation it can be represented as 1 × 10⁻⁴ M.

Thus the concentration of [OH⁻] is 1 × 10⁻⁴ M.

To know more about pOH, visit;

https://brainly.com/question/4092108

#SPJ5

The chemical equation below represents a reversible reaction.

H2PO4- + H2O ↔ H3PO4 + OH-

Which pair represents an acid and its conjugate base?

Answers

Answer:b

Explanation:

bc

In the given chemical equation, H₃PO₄ is an acid while it's conjugate base is OH⁻.

What is chemical equation?

Chemical equation is a symbolic representation of a chemical reaction which is written in the form of symbols and chemical formulas.The reactants are present on the left hand side while the products are present on the right hand side.

A plus sign is present between reactants and products if they are more than one in any case and an arrow is present pointing towards the product side which indicates the direction of the reaction .There are coefficients present next to the chemical symbols and formulas .

The first chemical equation was put forth by Jean Beguin in 1615.By making use of chemical equations the direction of reaction ,state of reactants and products can be stated. In the chemical equations even the temperature to be maintained and catalyst can be mentioned.

Learn more about chemical equation,here:

https://brainly.com/question/28294176

#SPJ3

Does liquid detergent conduct electricity?

Answers

Answer:

Yes, it is a good conductor of electricity.

Explanation:

They allow electric particles to pass through them (the bases).

(Hope this made sense)

How many moles of NaNO, would you need to make 500 mL of a 2.5 M
solution of NaNO?

Answers

Answer:

1.25 moles NaNO

Explanation:

Molarity = moles/Volume (L)

moles = Molarity (M) x Volume (L)

M = 2.5 M

V = 500 mL = 0.5L

moles = M x V = 2.5 x 0.5 = 1.25 moles

For the reaction ?H2 + ?O2 → ?H2O,
What is the maximum amount of H2O which could be formed from 15.52 mol of H2 and 17.95 mol of O2? Answer in units of g.

Answers

Explanation:

H2O, what is the maximum amount of H2O which could be formed from 10.9 g of H2 and 16.03 g ofO2? Answer in units of g. ... 0.500 mol O2 x 2 mol H2O / 1 mol O2 x 18 g H2O/mol H2O = answer in ..

Pls, answer asap!
When two objects of different temperatures are placed in contact with one another, eventually: (choose one option from below)
a) both their average kinetic energy and temperature will be the same
b) their average kinetic energy will be the same
c) neither their average kinetic energy and temperature will be the same
d) their temperature will be the same

Answers

Answer:

a) both their average kinetic energy and temperature will be the same

Explanation:

Temperature is the measure of the average kinetic energy of a system. As temperature increases, so will kinetic energy. As kinetic energy increases, speed increases. As one decreases, so does the other. When two objects are in contact with each other, their molecules will exchange energy and cause an eventual equilibrium of temperature and kinetic energy.

What holds more salt warm or cold water?

Answers

Salt water is salt mixed with fresh water. However, salt in cold water does not dissolve as well as if the water is warm. Warm water has more room between the water molecules, allowing more salt to fit. Cool water molecules are tighter together and will not allow much salt to dissolve

What is the mass in grams of 0.250 mol CH2Cl2?

Answers

Answer:

21.2 grams CH2Cl2

Explanation:

Number of moles: .25

Molar mass of CH2Cl2: 84.93 g/mol

Mass in grams: 84.93(0.250) = 21.2325

Considering the definition of molar mass, the mass of 0.250 moles of CH₂Cl₂ is 21.225 grams.

Definition of molar mass

The molar mass of substance is a property defined as its mass per unit quantity of substance, in other words, molar mass is the amount of mass that a substance contains in one mole.

The molar mass of a compound (also called Mass or Molecular Weight) is the sum of the molar mass of the elements that form it (whose value is found in the periodic table) multiplied by the number of times they appear in the compound.

Molar mass of CH₂Cl₂

In this case, you know the molar mass of the elements is:

C= 12 g/moleCl= 35.45 g/moleH= 1 g/mole

So, the molar mass of the compound CH₂Cl₂ is calculated as:

CH₂Cl₂= 12 g/mole + 2× 1 g/mole + 2× 35.45 g/mole

Solving:

CH₂Cl₂= 84.9 g/mole

Mass of 0.250 mol CH₂Cl₂

Next, you can apply the following rule of three: If by definition of molar mass 1 mole of the compound contains 84.9 grams, 0.250 moles of the compound contains how much mass?

[tex]mass=\frac{0.250 molesx84.9 grams}{1 mole}[/tex]

mass= 21.225 grams

The mass of 0.250 moles of CH₂Cl₂ is 21.225 grams.

Learn more about molar mass:

https://brainly.com/question/5216907

https://brainly.com/question/11209783

https://brainly.com/question/7132033

https://brainly.com/question/17249726

The term "para" in Paralympics means?

Answers

Answer:

It means beside or alongside.

Answer:

The word Paralympics means “parallel with the Olympics”, with the para prefix coming from the Greek word for alongside. The name was chosen to embody the spirit of the two movements existing side-by-side.

Explanation:

Other Questions
What was A civil rights organization that was formed in 1942?! Translate to count into Spanish by filling in the missing letters:Ctr Look at the picture and thanks summary about the movie "race" ? how do you breath plz help me WILL GIVE BRAINLIEST AND 20 POINTS Please I need some one to at least explain one of them so I can know how to do the rest Can someone write the beats/subdivide under the notes? The time signature is 4/4. I have no idea how to count this- A right rectangular prism has a length of 6 centimeters, a width of 2 centimeters, anda height of 5 centimeters. What is the surface area of the prism?104 sq cm120 sq cm60 sq cm72 sq cm I need help please someone will hep me please Which two words are the closest synonyms?Hintexcavate and obscureBexpose' and fabricationbestow and lavishDharrowing and hilariousSubmit You have been saving your allowance to buy a Nintendo Switch. You finally have saved up $400, but then you remember that tax in San Diego is 7.75%. If you plan to purchase a Nintendo Switch for $400, how much more money will you need in order to pay the sales tax? Douglas works for a racing car team.The team is practising at a racing circuitThe length of the racing circuit is 4.8 kilometres.The team car takes 2 minutes to go once round the racing circuit.(a) Work out the average speed of the team car.Give your answer in kilometres per hour.(3)Write your answer in the box below.kilometres per hourShow your working clearly in theThe working box can be movedWorking Box(b) Use estimation to show a check of your answer.(1)Write your check in the box below. 11. Why would scarcity and choice most likely be basic economic problems for allpeople?A. Because resources are widely available, so consumers must choose which resourcesthey prefer to use.B. Because resources are limitless, and people have unlimited choices that can causeconfusion.C. Because resources are not always available, and consumers must decide whichresources to purchase.D. Because resources are limited, but people's wants are unlimited. 4. If the area of a semi-circle is 100.48 square inches, what is the radiusof the circle ? *A) 16 inchesB) 8 inchesC) 4 inchesD) 2 inches PLS ANSWER FAST WILL GIVE BRAINLY!!!When you bounce a ball eventually it will stop bouncing. Where does the energy go? Identify the order of The Sun, Moon, and Earth During a solar and lunar eclipse. Can someone help please? Ill give brainliest. Two dogs are pulling on a chew toy. One dog pulls the chew toy with 64 N (E) andthe other pulls the chew toy with 31 N [W]. Determine the NET FORCE acting onthe chew toy. Please help with all three will mark brainliest