How many moles of NaCl are
equivalent to 15.6 g NaCl?
(Na = 22.99 g/mol, Cl = 35.45 g/mol)

The answer is

Explanation:

To find the number of moles of NaCl we must first find it's molecular mass M after that we use the formula

where

n is the number of moles

m is the mass

M is the molecular mass

From the question

m of NaCl = 15.6 g

M( NaCl ) = 22.99 + 35.45 = 58.44 g/mol

Substitute the values into the above formula and solve

That's

We have the final answer as

Hope this helps you

the ideal gas law equation is as follows

pv = nrt

where p - pressure

v - volume

n - number of moles

r - universal gas constant

t - temperature

so if the pressure, volume and temperature are already known

we are left with n and r

since r is the universal gas constant that has a known fixed value then r too is known

so we are left with 'n'

once we know temperature volume and pressure

we can find the number of moles of gas present using the ideal gas law equation

this is not my own answer, this is an answer for the same question by the user blahblahmali. i do not claim ownership of this account.

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