Calculate the percent yield if 500 grams of C7H8 makes 255 grams of C7H7NO2

1 C7H8 + 1 HNO3 = 1 C7H7NO2 + 1 H2O

This is urgent

Answers

Answer 1
I’m still thinking about it
Answer 2
500/92 = 5.43 mol of C7H8
1:1 mol ratio
Mass = mol x Mr = 5.43 x 137 = 743 g (theoretical yield)
Percentage yield = ( actual yield / theoretical yield ) x 100
500/743 x 100 = 67.3% 1dp

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Help me please!! I don’t know what a quadratic graph is and need help answering this question! ASAP

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Answer:

C

Step-by-step explanation:

Pretend you are teaching a 2nd grader how to do long division. Write a narrative of what you would say and how you would teach the student the steps.

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Answer:

write your equation. First begin y putting your divisor and dividend in place. Say your equation is 15 divided by 3= ? See how many times you can add three into 15 without going over. Then put the number of how many times it goes into 15 at the top of your symbol. than subtract your answer to the number it goes into under 15, and your answer is 5, so 15 divided by 3 =5.

Step-by-step explanation:

sorry if this is confusing, its hard to put into words lol.

A cashier can ring up 12 items per minute. How long will it take the cashier to ring up 72 items? ​

Answers

Answer:

So it will take 6 minutes to ring up 72 items.

Step-by-step explanation:

Well this seems pretty simple just have to reads the question and know what to find.

So what we know :

A cashier can ring up 12 items per minute

So :

1 minute = 12 Minutes

And we have to find :

How long for 72 items

So since we know he can do 12 in a minute and it is asking how many minutes it will take for 72 we can divide.

So :

72 / 12

=

6

So it will take 6 minutes to ring up 72 items.

I hope this helps!

If you have any questions or concerns feel free to message me or comment. :)

Is the function even,odd, or neither

Answers

Answer:

even  :D

Step-by-step explanation: :D

pls tell me which to pick (a,b,c,or d)

Answers

Answer:

B (Y, N, N)

Step-by-step explanation:

a) y = 1/3x, so each value satisfies it. This is true.

b) If "a" is "Y" then b has to be no

c) 1 * 11 = 11

2 * 2 = 22

3 * 5 = 15

The last equation does not follow the rules for the previous two equations, so it is no.

Thus, the answer is B (Y, N, N)

The perimeter of a rectangle can be found using the expression 2ℓ+2w , where ℓ represents the length and w represents the width. Find the perimeter when ℓ=6.2 units and w=3.5 units.

PLEASE HELP !!

Answers

Answer:

Medimos el perímetro en unidades lineales, que representan una sola dimensión. Ejemplos de unidades de medida de longitud son pulgadas, centímetros, ... Encontrar el perímetro de un triángulo con lados que miden 6 cm, 8 cm, y 12 cm. ... P = 2l + 2w, donde l es el largo del rectángulo y w l ancho del rectángulo. espe

Please help


Select ALL the true equations.

1. 5 + 0 = 0

2. 15 x 0 = 0

3. 1.4 + 2.7 =4.1

4. 2/3 x 5/9 = 7/12

5. 4 2/3 = 5 - 1/3

Answers

True equations:

- 15 x 0 = 0
- 1.4 + 2.7 = 4.1
- 4 2/3 = 5 - 1/3

The True equations are

2. 15 x 0 =0

3. 1.4 + 2.7 = 4.1

5. 4 2/3 = 5- 1/3

What is Equation?

Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.

It demonstrates the equality of the relationship between the expressions printed on the left and right sides. LHS = RHS is a common mathematical formula.

Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.

1. 5 + 0 = 0

5 = 0

This is not an equation because LHS ≠ RHS.

2. 15 x 0 =0

0= 0

This is an Equation.

3. 1.4 + 2.7 = 4.1

4.1 = 4.1

This is an Equation.

4. 2/3 x 5/9 = 7/12

10/ 27= 7/12

This is not an Equation.

5. 4 2/3 = 5- 1/3

14/3 = 14/3

This is an Equation

Learn more about Equation here:

https://brainly.com/question/29538993

#SPJ2

Which student is correct and why arethey correct?​

Answers

Answer:

still no work shown man

Step-by-step explanation:

i cant help you if you do not give us any images or type the problem in

Perform the following conversion.
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Answers

Answer:

1.23 meters

Step-by-step explanation:

divide it by 100..

123/ 100 = 1.23 m

Answer:

1.23 m

Step-by-step explanation:

divide the length value by 100

3x+25=2(4x-10)

Can somebody plz explain to me how to solve this

Answers

3x+25=2(4x-10)
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+20 +20 (factor and match like terms)
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-3x -3x
45=5x
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Please help! Will mark brainliest

Answers

Answer:

30 degrees but I have to write more stuff so brainly will let me submit my answer

Answer:

30°

Step-by-step explanation:

Because it is in the intersection of two lines, and opposite a corner that we know is 30°, then 3 must also be 30°

-x+5+4x
simply the expression

Answers

Answer:

3x+5

Step-by-step explanation:

Find the least common multiple (LCM) of 2x^4 – 6x^3 – 8x^2 and 4x^3 – 4x.
You can give your answer in its factored form.

Answers

Step-by-step explanation:

[tex] \underline{ \underline{ \text{Solution}}} : [/tex]

[tex] \text{1. \: First \: expression} : \tt{2 {x}^{4} - 6 {x}^{3} - 8 {x}^{2} }[/tex]

⤑ [tex] \tt{2 {x}^{2}( {x}^{2} - 3x - 4) }[/tex]

⤑ [tex] \tt{2 {x}^{2} \{ \: {x}^{2 } - \: (4 - 1)x - 4 \} }[/tex]

⤑ [tex] \tt{2 {x}^{2} \{ {x}^{2} - 4x + x - 4 \} }[/tex]

⤑ [tex] \tt{2 {x}^{2} \{ x(x - 4) + 1(x - 4) \} }[/tex]

⤑ [tex] \tt{2 {x}^{2} (x - 4)(x + 1)}[/tex]

[tex] \text{2. Second \: expression} : \tt{4 {x}^{3} - 4x }[/tex]

⤑ [tex] \tt{4x( {x}^{2} - 1)}[/tex]

⤑ [tex] \tt{4x(x + 1)(x - 1)}[/tex]

L.C.M = Common × Remaining

= ( x + 1 ) × ( x - 1 ) × ( x - 4 ) × 2x² × 4x

= 8x³ ( x + 1 ) ( x - 1 ) ( x - 4 )

[tex] \red{ \boxed{ \boxed{ \tt{Our \: final \: answer : \boxed{ \underline{ \tt \: 8 {x}^{3} (x + 1)(x - 1)(x - 4)}}}}}}[/tex]

Hope I helped !

Have a wonderful day / night !

▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁

it cost $245 for 10 people to attend a concert how muchdoes it cost for a group of 8 people

Answers

Answer: It will cost $196

245 ÷ 10 = $24.5

$24.5 x 8 = $196

Hope this helps, have a wonderful day!

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Answers

Answer:

is there an actual graph though that would really help

Step-by-step explanation:

2x^2+2x is it simplified

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Answer:

Yes it is simplified

Step-by-step explanation:

2x^2 is not a like term to 2x because 2x does not have an exponent. Therefore, you cannot add 2x to 2x^2. So it is as simplified as it can be at this point

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Step-by-step explanation:

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Answer:

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Step-by-step explanation:

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Answers

Answer:

-4/2

Step-by-step explanation:

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Desiree went bowling. It was $4 to rent the shoes and $3.25 per game. If she spent a total of $30 how many games did she bowl?

Answers

Answer:

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Answers

Answer:

X=2

EF = 21

Step-by-step explanation:

19x-17= 51-15x

34x = 68

X=2

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From 77 to 116 what’s the percentage increase

Answers

50.65%
Take the difference between the final value and initial value then divide it by the initial value to get a decimal answer. Multiply it by 100 to get it in percentage terms.

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102
27°
41°
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Answers

Answer:

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Step-by-step explanation:

Label the point where the altitude meets the base P and the end points of the base A and B where m∠A = 27 and m∠B = 41

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Answers

Answer:

-10.5n + 14

Step-by-step explanation:

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Answers

Answer:

so-

Step-by-step explanation:

-2x is not like terms because it has a variable. yup.

I hope this helps bro:)

- Alie♥

If you roll a regular 6 faced die 1200 times how many times to you expect to get 5

Answers

Answer:

240 times

Step-by-step explanation:

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The price of a computer is $520. The price of a tablet is 30% of the price of this computer. What is the price of the tablet?​

Answers

Answer:

156 is the answer to this question

Answer:

$156

Step-by-step explanation:

Multiply: 520 times 30% (.3)

It would be .3 because to turn a percent to a decimal you need to move the decimal two times to the left.

(I would put a picture but I'm too lazy, lol)

Hope this helped!! :)

Stay safe and have a wonderful day/night!!!!!

Brainliest?!?!

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Solve the equation and check for the solution

Answers

Answer:

x=12

Step-by-step explanation:

move the 3 to the other side to get x by itself.

check: 12 + 3 = 15

Answer:

(Not sure)

x = 12

Step-by-step explanation:

x + 3 = 15

CLT

X = 15-3

× = 12

what is -3x - 5 = 10 ​

Answers

Answer:

x = -5

Step-by-step explanation:

Im pretty sure its -5 if it's not im sorry!


Christian and Jaida are summer interns at a state park .They are helping to plant trees in an area where there was a forest fire .Christian’s uncle owns a tree nursery and is willing to donate a 3-foot tall tree that will grow 1.5 feet per year. Jaida goes to another nursery ,but is only able to get tree seeds donated according to the seed package the trees will grow 1.75 feet per year.

I NEED HELP WITH THE CHARTS!!!

Answers

Answer:

Step-by-step explanation:

okay hopefully i could explain it fast for you but

christian tree             jaida's tree

0 0                               0   0

1  1.5                              1  1.75

6  9                               6  10.5

11  16.5                          11  19.25

12   18                             12  21

13   19.5                           13  22.75

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