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

Related Questions

Lisa's weekly pay increases from $525 to $546
Calculate her percentage pay increase.

Answers

546 - 525 = 21

21 is 4% of 525.


Lisa gained a 4% pay increase.

The percentage pay increase of Lisa's weekly will be 4%.

What is the percentage?

The amount of any product is given as though it was a proportion of a hundred. The ratio can be expressed as a quarter of 100. The phrase % translates to one hundred percent. It is symbolized by the character '%'.

The percentage is given as,

Percentage (P) = [Final value - Initial value] / Initial value x 100

Lisa's weekly pay increased from $525 to $546. Then the percentage pay increase will be given as,

P = [(546 - 525) / 525] x 100

Simplify the expression, then we have

P = [(546 - 525) / 525] x 100

P = (21 / 525) x 100

P = 0.04 x 100

P = 4%

The percentage pay increase of Lisa's weekly will be 4%.

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Which of the following are terms in this expression? Select all that apply.
1 + 10n + m
5m
4n
10n
7

Answers

Answer:

10n is the only term

Step-by-step explanation:

because other numbers are not in the equation

9320 is what percent of 15821?

Answers

Answer:

9320 is 58.9090449% of 15,821

Step-by-step explanation:

what is 3/4b>15 solution

Answers

The solution set of the given inequality is  {b| b > 20}.

How to solve the inequality?

Here we have the inequality (3/4)b > 15 and we want to solve it. To do so, we just need to isolate the variable b.

And to do it, we can work with this like we would do with any equation, we can just multipy both sides by (4/3) so we get:

(4/3)*(3/4)*b > 15*(4/3)

b > 20

Then the solution set can be written as {b| b > 20}

That is the set of all values larger than 20.

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what is the answer for this. Need it pls​

Answers

Answer:

c = 7, d = 5

Step-by-step explanation:

Equation A

[tex]\sqrt{448x^c} = 8x^3\sqrt{7x}[/tex][tex]\sqrt{448x^c} = \sqrt{64x^6*7x}[/tex][tex]\sqrt{448x^c} = \sqrt{448x^7}[/tex][tex]x^{c} = x^7[/tex]c = 7

Equation B

[tex]\sqrt[3]{576x^d} = 4x\sqrt[3]{9x^2}[/tex][tex]\sqrt[3]{576x^d} = \sqrt[3]{4^3x^39x^2}[/tex][tex]\sqrt[3]{576x^d} = \sqrt[3]{576x^5}[/tex][tex]x^{d} = x^5[/tex]d = 5

A phone company offers two monthly plans. Plan A costs $8 plus an additional $0.09 for each minute of calls. plan B cost $16 plus an additional $0.07 for each minute of calls.

a. For what amount of calling do the two plans cost the same? minutes

b. What is the cost when the two plans cost the same? $​

Answers

Answer: 72

Plan A = 30 +0.15x

Plan B = 16 +0.20x

30+0.15x = 16+0.20x

subtract 16 from each side

14 +0.15x = 0.20x

subtract 0.15x from each side

14=0.05x

x = 14/0.05 = 280 minutes

280*0.15 = 42 +30 = $72

280 * 0.20 = 56 +16 = 72

280 minutes and cost $72 each

Step-by-step explanation:

Which of the following products is negative? 4 A -31-7) B-3.7567 4 © 6.5. 4.25 D -5.5(-0.25)​

Answers

Answer:

the answer is D and just keep practicing

can someone help me please

Answers

Answer:

1A) XY

1B) XY

1C) WX/XY

2) WY is the hypotenuse

Step-by-step explanation:

Determine whether the graph represents a function. Explain.

Answers

Answer:

it does not represent a function

Step-by-step explanation:

it is not liner

Answer:yes

Step-by-step explanation:

each x value has one y value

A rafter makes an angle of 28° with the horizontal. If the rafter is 15 feet long, what is the height at the rafter's peak? Draw a diagram.​

Answers

The height is 7.04 feet at the rafter's peak that makes an angle of 28° and 15 feet long.

What is angle?

An angle is the formed when two straight lines meet at one point, it is denoted by θ.

Given that,

Length of rafter = 15 feet,

Angle made by rafter with the horizontal = 28°

Apply sin formula to determine the length x of the rafter,

sinθ = x / 15

sin28°  = x / 15

0.469 = x / 15

x = 7.04

The height of the rafter is 7.04.

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Find the slope ......

Answers

The slope for this problem is -4/3.

Step-by-step explanation:

To find the slope, we can look at it as Rise/Run. The rise is how many units up (+) a point is or how many units down (-) a point is from the starting point. The rise is how many units to the left or right a point is from the starting point.

Now that we understand Rise/Run, we can find the slope. If we go from the highest point, or the point farthest to the left in the picture shown, we can see that we need to go four units down to get to the same level as the next point, so we would be moving -4 units away from the point. We can also see the second point is 3 units to left.

With this information, we can now figure out that the slope is -4/3.

Don't hesitate to ask any questions.

Answer:

m =rise/ran=y2-y1/x2-x1

m=slope

(x1, y1)=coordinates of first point in the line

(x2, y2)=coordinates of second point in the line

Step-by-step explanation:

find points.

then use formula & solve.

Laura says that you should
always divide the bigger number
by the smaller number. Do you
agree with her or disagree with her?
why?

Answers

Answer:

agree

Step-by-step explanation: you should always divide the bigger number over the smaller number. but if you don't you'd still get the same answer

help pls, Factor 25x-10xy i hop this is easy for you

Answers

Answer:

5x(5-2y)

Step-by-step explanation:

If this helped hen consider making my answer brainliest

Use the relationship between the angles to find the value of x.

X - 5°
4x
2x + 10°

Answers

Answer:

sorry I don't know the answer I have a test tomorrow and I need the points to ask my questions

Describe the lines in the figure below identify the figure

Answers

Answer:

The lines are congruent, the figure is a parallelogram.

Answer:

The figure shown is a parallelogram.

The lines on the sides are parallel

And the line on the top and the line on the bottom are parallel

Step-by-step explanation:

Layla was out at a restaurant for dinner when the bill came. Her dinner came to $9. After adding in a tip, Before tax, she paid $10.80. Find the percent tip.

Answers

Answer: 12%

Step-by-step explanation:

Use the rectangle shown to answer the question.
32 feet
8 feet
Stephanie dilated the rectangle and the dimensions of the image were 24
feet by 6 feet. What was the scale factor used? (In decimal form)

Answers

.75 is the scale factor,
24/32= .75
6/8 = .75

- 11 2/3 x (-4 1/5)=?

Answers

if you use photomath and show your question its easier but i got 49

A cell phone plan costs $200 to start. Then there is a $50 charge each
month. What is the total cost (start-up fee and monthly charge) to use the
cell phone plan for 3 months? *
O $150
$200
O $350
$750

Answers

Answer:

750

Step-by-step explanation:

200+50=250

250x3+750

Answer: $750

Step by step explanation:

A bicyclist rode 24.75 miles in 2.25 hours. What was the bicyclist's average speed, in
miles per hour?

Answers

Answer:

11

Step-by-step explanation:

24.75 / 2.25 = 11

Estimate sun and round to the nearest hundred 534+271

Answers

Answer:

805.00

Step-by-step explanation:

The answer is 805.00 for sure

Answer:

800

Step-by-step explanation:

534 + 271 = 805

805 rounded to the nearest hundred is 800. Remember that when numbers between 750 and 849 are rounded to the nearest hundred it is always 800.

A restaurant critic reviewed restaurants in Oxford and Fairview. In Oxford, the critic gave 18 negative reviews and 33 positive reviews. In Fairview, 5 of the reviews were negative and 11 were positive. In which city did the restaurant critic give a lower ratio of negative reviews to positive reviews?

Answers

Answer:

Fairview is lower.

Step-by-step explanation:

IXL

The required, city Fairview has a lower ratio of negative to positive reviews.

What is the Ratio?

The ratio can be defined as the proportion of the fraction of one quantity towards others. e.g.- water in milk.

here,
A restaurant critic reviewed restaurants in Oxford and Fairview.
In Oxford, the critic gave 18 negative reviews and 33 positive reviews.
ratio = 18 / 33 = 0.54

In Fairview, 5 of the reviews were negative and 11 were positive reviews.
Ratio = 5 / 11 = 0.45

Thus, the required, the city of Fairview has a lower ratio of negative to positive reviews.

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How did he get from 3^-16/3/3^-8/3 to 0.00285333857/0.00285333857??? (The circled part) Because when I put it in the calculator I don’t get the decimal I was suppose to get.

Answers

Step-by-step explanation:

[tex] \frac{ {3}^{ - \frac{16}{ 3} } }{ {3}^{ - \frac{ 8}{3} } } = \frac{0.002853338}{0.05341665075} [/tex]

I think, he made a mistake because the exponents have different values but then if you'll look at his results, he just wrote the same thing. If you want, you could post the original problem, and I'll solve it for you :)

The kiddie pool has a hole in it and is losing water at a rate of 24 fl oz per minute. What is the change in amount of water in the pool after four minutes? Write an expression, write the answer as an integer, then interpret the answer in the context of the problem.

Expression: Answer (as integer):

Interpretation:

Answers

expression: -24 * 4

Integer: -96

The pool loses 96 fl oz of water after 4 minutes.

GEOMETRY The sum of the measures of the angles of a trapezoid is 360 degrees. Find the missing measure

Answers

Answer:

70

Step-by-step explanation:

Add them all first

100+110+80=290

Then subtract

360-290

Reflection over the line y = -x of the point (1,3)

Answers

Answer:

(-3,-1)

Step-by-step explanation:

To reflect them you gotta switch their places and change their signs from positive to negative.

so (x,y) -> (-y,-x)

At hms 60% of the students voted in an election if there are 1,500 students how many voted

Answers

Answer:

900

Step-by-step explanation:

Answer:

900 voted

Step-by-step explanation:

10 5/12 - 7 7/12 plss​

Answers

your answer is: C 125/12

Answer:

The answer is 2 5/6

Step-by-step explanation:

10 5/12= 125/12

7 7/12= 91/12

125-91 is 34

34/12 = 2 10/12

simplify it

2 5/6

7 + r ≥ 18
Which is true?
11
10
9

Answers

Answer:

11

Step-by-step explanation:

ez

Answer:

11

Step-by-step explanation:

The areas of the squares adjacent to two sides of a right triangle are shown below.
? units?
35 units
50 units
What is the area of the square adjacent to the third side of the triangle?

Answers

Answer:

85

Step-by-step explanation:

All you do is add 35 units and 50 units together.

Area of the square adjacent to the third side of the triangle is 85 units square

What is Pythagoras theorem?

Pythagoras theorem states that a right-angled triangle, the square of one side is equal to the sum of the squares of the other two sides.

Given that areas of the squares adjacent to two sides of a right triangle are :

35 sq units

50 sq units

To determine the area of the square adjacent to the third side of the triangle

According to Pythagoras theorem,

Hypotenuse² = Base² + Perpendicular²

As figure is missing  assuming given sides are perpendicular sides

Then Area of the square adjacent to the third side of the triangle = 35 + 50

= 85 units square

Now, assuming 50 sq unit is an area on hypotenuse

Then Area of the square adjacent to the third side of the triangle  = 35 - 50

= 15 units square

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