What is the molar mass of AI(CIO4)3?

Answer:

it decreases land temperature near the ocean

The pressure of C2H4 and N2 gas is 0.3 atm

Based on the information provided, it appears that C2H4 and CH4 are added to a mixture of CO and N2 and then exposed to excess oxygen. The resulting mixture is then placed in a rigid container at a constant volume, and the pressure of CO2 and H2O vapor is measured to be 0.9 atm and 0.8 atm, respectively.

If the number of moles of C2H4 and CH4 is equal, the sum of the pressure of C2H4 and N2 gas can be calculated by subtracting the pressure of CO2 and H2O vapor from the total pressure. Since the total pressure is 1 atm, the sum of the pressure of C2H4 and N2 gas is:

1 atm - 0.9 atm - 0.8 atm = 0.3 atm

It is worth noting that this answer is based on the information provided and any additional information or assumptions may affect the final result.

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The pressure of a gas is directly proportional to its temperature. Hence, as temperature decreases  pressure decreases.

According to Gay- Lussacs law at constant volume, the pressure of a gas is directly proportional to the temperature.

Hence, P/T = constant.

Let P1 and T1 be the initial pressure and temperature and P2, T2 be the final quantities, then

P1/T1 = P2/T2

Given P1 = 1 atm

T1 = x ° C

T2 = x/2° C

Then P2 = P1 T2/T1

P2 = 1 × x/2° C / x° C

   = 1/2 atm

That is one half of the initial pressure.

Therefore, the pressure of the gas reduces to half when temperature is reduced to half.

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Laura could use a few different methods to determine which beakers contain pure water and which contain solutions. One method is to test the boiling point of each liquid. Pure water boils at 100 degrees Celsius at standard pressure. If the liquid in a beaker boils at a temperature higher than 100 degrees Celsius, it is likely a solution and not pure water. Another method is to test the freezing point of each liquid. Pure water freezes at 0 degrees Celsius at standard pressure. If the liquid in a beaker freezes at a temperature other than 0 degrees Celsius, it is likely a solution and not pure water.

Another method is through density test. Pure water has a density of 1g/cm³ at 4°C. Laura can use a hydrometer, which is an instrument that measures the density of a liquid to check if the density of the liquids in the beakers is equal to 1g/cm³. If it is not, then it is not pure water.

Additionally, Laura could also test the conductivity of the liquids. Pure water is a poor conductor of electricity, whereas solutions can conduct electricity. Laura could use a conductivity meter to check the conductivity of the liquids. If a liquid conducts electricity, then it is likely a solution and not pure water.

Finally, Laura could also use a refractometer, which measures the refractive index of the liquid. The refractive index of pure water is 1.333 and any deviation from this value indicates the presence of dissolved solutes.

It's important to notice that no single test can confirm that a liquid is pure water, but a combination of tests can give us a strong indication of it.

You can compare the rates of effusion of two gases in a mixture by their molecular weights.

The square root of a gas's molecular weight has an inverse relationship with the rate of effusion of that gas. Therefore, you may compute the square roots of two gases' molecular weights and then invert that ratio to compare the rates of effusion of the two gases in a mixture.

The rate of effusion will be slower for the gas with the greater molecular weight and faster for the gas with the lower molecular weight.

For instance, the ratio of two gases' rates of effusion is given by R = (M1 / M2)-1 if their molecular weights are M1 and M2, respectively.

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Answer:Gas is the answer

Only a small percentage of the particles have been seen to be deflected, while the majority have passed through the layer. Rutherford concluded as a result that an atom's mass was concentrated at its centre.

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Answer:

Explanation:

i. To find the limiting reactant, we need to compare the number of moles of each reactant that we have. We can convert the mass of Fe2O3 and CO to moles by using their molar masses.

Fe2O3: 130g / (159.69 g/mol) = 0.817 mol

CO: 50g / (28.01 g/mol) = 1.78 mol

Since we have less moles of Fe2O3 than CO, Fe2O3 is the limiting reactant.

ii. To find the mass of iron produced, we first need to find the number of moles of Fe2O3 that react by using the balanced equation.

Fe2O3: 0.817 mol Fe2O3 x (2 mol Fe/1 mol Fe2O3) = 1.634 mol Fe.

then we can convert that to mass by using the molar mass of Fe.

1.634 mol Fe x (56 g/mol) = 91.984 g of Fe

iii. To find the number of moles of unreacted reagent, we need to subtract the number of moles of Fe2O3 that reacted from the original number of moles of Fe2O3 that we had.

0.817 mol - 0.817 mol = 0 mol of Fe2O3 left over.

iv. To find the volume of CO2 produced, we need to use the ideal gas law PV = nRT.

Where P is pressure, V is volume, n is the number of moles, R is the ideal gas constant and T is the temperature in kelvin.

Since we know the number of moles of CO2 produced is 1.634 mol and pressure and temperature in the question.

So, we can calculate the volume by using this information.

V = (1.634 mol * 8.314 J/mol*K * (25+273.15) K) / 2atm = 24.24 L

So, 24.24 L of CO2 is produced at 25°C and 2atm pressure.

Answer:

yes, odor is classified as a physical property

Explanation:

1.00 mol of water contains the most hydrogen atoms.

1 mol of water(H2O) contains 2 mol of hydrogen atoms

molar mass of hydrogen = 1.01 g/mol,

so 1 mol of water contains 21.01 = 2.02 g of hydrogen.

1 mol of Ammonia (NH3) contains 1 mol of hydrogen atoms

molar mass of hydrogen = 1.01 g/mol,

so 1 mol of ammonia contains 11.01 = 1.01 g of hydrogen.

hydrogen in 10.0 g of water  = 4.83 ×[tex]10^(22)[/tex] hydrogen atoms

hydrogen in  15.00 g of ammonia = 1.48  ×[tex]10^(23)[/tex] hydrogen atoms.

1 mol of water contains the most hydrogen atoms. This is because water, chemically represented as H2O, contains two hydrogen atoms for every oxygen atom. While 1 mol of ammonia(NH3) contains 1 mol of hydrogen atoms, 1 mol of water contains 2 mol of hydrogen atoms.

Therefore, 1 mol of water contains more hydrogen atoms than 1 mol of ammonia, and that's why option 3 -1 mol of water contains the most hydrogen atoms out of the options provided.

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In general, ionization energy increases across a period and decreases down a group. Across a period, effective nuclear charge increases as electron shielding remains constant.

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The limiting reactant if 70.0 g of C7H6O3 and 80.0 g of C4H6O3 react is salicylic acid (C7H6O3).

In this case, given that:

70g C7H6O3

80g C4H6O3

Molar mass of C7H6O3 = 138 g/mol

Molar mass of C4H6O3 = 102 g/mol

So, we need to convert C7H6O3 to C4H6O3 as below:

= 70g C7H6O3

= (molar mass of C4H6O3 / molar mass of C7H6O3) * mass of C7H6O3

= (102 / 138) * 70

= 51.74g C4H6O3

Thus, when 70.0 g of C7H6O3 and 80.0 g of C4H6O3 react, it will be:

80g C4H6O3 – 51.74g C4H6O3 = 28.26g C4H6O3

And, that means there are 28.26g C4H6O3 left after reacting it with C7H6O3.

Hence, the limiting reactant is salicylic acid (C7H6O3).

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The ionic compound's metal will be replaced with AI. True for Fe2O3

Atomic bonds can be covalent or ionic in nature. The structures and characteristics of these bonds vary. Pairs of electrons are included in covalent bonds through the binding of two atoms in a specific orientation. Ionic bonds, on the other hand, are bonds that connect two ions.

Ionic bonding will typically be present in compounds where a metal is bound to either a quasi or a semi-metal. Molecular compounds are those that contain only non-metals or quasi combined with non-metals and exhibit covalent bonding.

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The ideal gas law describes the behavior of a gas under ideal conditions, which typically means that it is at a low density and a high temperature.

When these conditions are met, the gas will behave in a manner that is consistent with the ideal gas equation. Generally, a gas will exhibit its ideal properties when it is in a container with a large volume, has a low pressure, and is at a high temperature.

Additionally, the gas particles must be small and non-interacting, meaning that they do not interact with each other. When these factors are taken into account, a gas will most likely display the ideal gas properties predicted by the ideal gas law.

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Answer:

look at the attachment I wrote it out for you.

The molar mass of the gas would be 16.36 g/mole.

The formula for molar mass: M = (m.RT)/ (P.V)

P stands for the pressure of the ideal gas

V stands for the volume of the ideal gas

R stands for the universal gas constant

T stands for the temperature.

In this case, we are given that:

P = 1 atm (standard conditions)

T = 273K (standard conditions)

R = 0.082 lit. atm. K⁻¹.mol⁻¹

Mass of gas (m) = 0.399 g

Volume of gas (V) = 550 mL = 0.55 L

Therefore, the molar mass of the gas would be:

M = (m.RT)/ (P.V)

M = (0.399 x 0.08206 x 273) / (1 x 0.55)

M = 16.36 g/mole

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In the given diagram,  the first atom contains one valence electron and the second have 7 valence electrons. The first atom donates the one electron to the second atom and both achieve octet and forms and ionic compound.

Ionic compounds are formed between a metal and non-metal. Metals are rich in electrons and easily loss one or more electrons to other atoms. Non-metals are electron deficient and can gain electron from metals. These electron loss and gain between atoms forms the ionic bond between them.

In the diagram the first atom contains total 11 electron of which one is valence electron. By donating this extra electron the atom can achieve octet. The second one contains total 17 electrons  of which  7 are valence electrons, thus need one more electron to attain octet.

The first atom represents sodium atom and the second one is chlorine atom. Sodium donates its valence electron to Cl and form the ionic compound NaCl.

Na⁺ + Cl⁻ ⇒ NaCl

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You would observe that the rock absorbs heat more quickly than the water and releases it more slowly. The rock will reach room temperature more quickly if you let them cool.

The majority of solar radiation that hits water's surface is reflected back into the atmosphere. Given that land absorbs more solar radiation, both the land's surface and the vegetation it supports retain more heat.

Water absorbs and releases heat more slowly than land because its specific heat is higher than that of dry soil. Due to the high heat capacity of water, large bodies of water often tend to moderate the temperature of neighboring land.

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Answer: The answer is the trees roots and trunk are growing in responsive to gravity

Explanation: Gravity cant pull the roots of the tree upward causing the roots of the tree to grow straight within its height.

ionic and polar compounds are highly soluble in water whereas the covalent and organic compounds are highly insoluble in water

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It contain 2 mol of HCl. To find the moles of HCl, you have to change the volume units into dm³ or liter.

How to calculate the value of that HCl mole?

As per data given:

Vacid = 100 cm³

Molacid = 0.2 mol/dm³ = 0.2 mol/L

First, we have to change volume unit into liter or dm³. So

Vacid =  100 cm³ = 0.1 L

Then calculate the moles of HCl:

Moles of HCl = Molacid : Vacid

Moles of HCl = 0.2 : 0.1

Moles of HCl = 0.2 x 10

Moles of HCl = 2 mol

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a) The concentration of the hydrogen ions is  1 * 10^-7 M

b) The concentration of the hydroxide ions is  1 * 10^-7 M

c) Ratio of the hydrogen to the hydroxide ion is 1:1

We know that the pH of the solution would have to do with ratio of the hydrogen ion and the hydroxide ions that we have in the solution. We know that the pH values that range from 0 -6 is acid, 7 is neutral and 8 - 14 is basic.

Then we have that;

Concentration of the hydrogen ion in the solution is obtain from the formula;

[H^+] = Antilog (-pH)

At pH 7 we have;

[H^+] = Antilog (-7)

= 1 * 10^-7 M

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according to the question, All the reactions in a path are added together.

What is the reactions?

Reactions are the processes in which one or more substances are changed into one or more new substances. They are caused by a chemical change in which the atoms of the reactants rearrange to form the atoms of the products. Reactions can be classified according to the type of energy released or absorbed during the reaction, such as exothermic and endothermic. Reactions can also be classified according to the type of reactants involved, such as single-replacement and double-replacement reactions. Reactions can occur quickly and release a large amount of energy, or they can occur slowly and release little or no energy. Reactions can also occur in a series of steps, such as in a reaction mechanism. In general, reactions require reactants, a catalyst, and an energy source in order to occur.

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,,,, ....... ... .. .. . . . .

The parent component in the structure of 1,4- dimethyl cyclohexane is cyclohexane, which has two methyl groups attached at the first and fourth positions of the carbon ring.

Cyclohexane is a saturated hydrocarbon with the molecular formula CₙH₂ₙ where n represents the number of carbon atoms present in the organic compound. They are represented as simple polygons with the sides representing carbon-carbon bonds. Each carbon atom is held together by two hydrogen atoms. A molecule's multiple rings may share one or more common atoms. One carbon atom is shared by two rings in spirocyclic compounds. These compounds are uncommon.

According to the IUPAC system, cycloalkanes are named with the prefix cyclo-.

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An organism is considered extinct if the fossil evidence reveals the remains of one that is no longer present-day. As a result, scientists might conclude that the majority of Earth's animals are already extinct because they have noted that certain qualities and traits are absent from species that are still alive.

The phrase "extinction" refers to the end of a particular type of organism or a set of types, typically a species. Although the ability to reproduce and bounce back may have been lost earlier, the death of the last individual of the species is widely considered to be the moment of extinction.

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It has long chains of molecules that are tangled at room temperature that make it a good material for making bowls.

The smallest particle of a material that possesses all of its physical and chemical characteristics. One or more atoms make form a molecule. A molecule is the smallest particle of any material that may exist independently while retaining the physical and chemical characteristics of the substance and is composed of one or more components. Molecules are further subdivided into atoms. For example, an oxygen atom is denoted as O, whereas an oxygen molecule is denoted as O2. Molecules are classified into three types: atom molecules, element molecules, and compound molecules.

Here,

It features lengthy chains of molecules that are tangled at room temperature, making it an excellent material for bowls.

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a) The percentage abundance determines the relative atomic mass.

b) The relative atomic mass for the element X is122.5 amu

c) The Rutherford's model explained showed the movement of the electrons.

The isotopes are the kinds of atoms of an element that we can see. We know that all the element that we have in the periodic table are composed of the isotopes and the isotopes of the elements are important in the determination of the relative atomic mass of the element that we may be considering here called X

We can now be able to see from the forgoing that we have here that;

Relative atomic mass = Weighted average of all the isotopes

As such we have;

(121 * 0.432) + (123 * 0.531) + (129 * 0.0370)

52.27 + 65.31 + 4.773

=122.35 amu

The Rutherford model of the atom can also be called the planetary model of the atom and this is the model that can be able to explain to us the way that the electrons move round the nucleus.

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Most proteins absorbed in the digestive tract in duodenum or proximal jejunum of the small intestine.

The digestive system is a process carried out by the digestive organ system to process food so that its nutrients can be absorbed by the body and converted into energy. The digestive tract consists of the mouth, esophagus, stomach, small intestine, large intestine, rectum and anus.

The small intestine is a long tube that has villi on its walls. The small intestine consists of three parts namely the duodenum, jejunum and ileum. In the wall of the small intestine there is a mucosa that produces juice containing enzymes. Enzymes function to digest complex materials into simpler ones, then the results of the digestion are completed and absorbed by the villi in the duodenum or proximal jejunum.

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Atoms of different metals can differ in number of protons, electron configuration, atomic radius, melting/boiling point, hardness/ductility, and conductivity.

Atoms of different metals can differ from each other in a number of ways, including:

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