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Artemon [7]
3 years ago
12

10.

Chemistry
1 answer:
kondor19780726 [428]3 years ago
5 0

Answer:

A.  

Explanation:

The leading zeros in c, d, and e are not significant.  There is no zero in b.  Just one left and all it's zeros are significant.

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Google

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3 years ago
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3 years ago
What is the molar mass of 81.50 g of gas
garik1379 [7]

The molar mass  of gas = 238.29 g/mol

<h3>Further explanation</h3>

Given

mass = 81.5 g

P=1.75 atm

V=4.92 L

T=307 K

Required

molar mass

Solution

The gas equation can be written  

\large{\boxed{\bold{PV=nRT}}

\tt n=\dfrac{mass}{molar~mass}

So the equation becomes :

\tt Molar~mass=\dfrac{mRT}{PV}

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