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andre [41]
3 years ago
9

I know the paper is blurry but can anyone explain any of the questions from 76-80?

Chemistry
1 answer:
Whitepunk [10]3 years ago
3 0

Answer:try to make a good pic please I have ideas about the topic

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Vitamin C has an empirical formula of C3H4O3 and a molecular mass of 176 amu. What is the molecular formula of vitamin C?
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(C3H4O3) x 2 = C6H8O6, the molecular formula for Vitamin C.

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How many moles are present in 107 g of sodium?
cricket20 [7]

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A sample of gas exerts a pressure of 16 atm at a temperature of 340 K. What is the pressure of the gas in atm if the temperature
gavmur [86]

Answer:

P2 = 19.2atm

Explanation:

Initial pressure (P1) = 16atm

Initial temperature (T1) = 340K

Final temperature (T2) = 408K

Final pressure (P2) = ?

This question involves the use of pressure law

Pressure law states that the pressure of a fixed mass of gas is directly proportional to it's temperature provided that volume is kept constant.

Mathematically,

P = kT, k = P / T

Therefore,

P1 / T1 = P2 / T2 = P3 / T3 = ......=Pn / Tn

P1 / T1 = P2 / T2

We need to solve for P2

P2 = (P1 × T2) / T1

Now we can plug in the values and solve for P2

P2 = (16 × 408) / 340

P2 = 6528 / 340

P2 = 19.2atm

The final pressure (P2) of the gas is 19.2atm

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This quiz gonna kill me <br> please help
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