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Mariana [72]
3 years ago
10

A student boils 9.43 grams of an unknown substance into vapor. If completely vaporizing the substance required 8,720 joules of e

nergy, what is the heat of vaporization?
The heat of vaporization is____ joules/gram.
Chemistry
2 answers:
ad-work [718]3 years ago
6 0

The correct answer is

925

:)

Natali5045456 [20]3 years ago
4 0

I used the formula q=m*h

8720=9.43*h

h=924.708


yeet

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(i) We start by calculating the mass of sugar in the solution:

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Then now we can calculate the amount of water:

solution mass = mass of sugar + mass of water

mass of water =  solution mass - mass of sugar

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(ii) We use the following reasoning:

If       500 g solution contains 12.5 g sugar

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X=(500×75)/12.5 = 3000 g solution

Now to get the amount of solution in liters we use density (we assume that is equal to 1):

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<h3>What is paramagnetic?</h3>
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brainly.com/question/18865305

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So,
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