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Plz help me on this
A student has a 6 gram sample of sodium chloride (NaCl) solid. How many moles of sodium chloride are contained in this sample?

Sagot :

ardni313

The number of moles of NaCl = 0.103

Further explanation

Given

6 gram sample of NaCl

Required

moles

Solution

The mole is the number of particles contained in a substance

1 mol = 6.02.10²³

Moles can also be determined from the amount of substance mass and its molar mass

mole = mass : molar mass

Molar mass of NaCl = 58.5 g/mol

Input the value :

mole = 6 g : 58.5 g/mol

mole = 0.103

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