How many moles are there in 7.415 g of NaCl?Give your answer in moles and to three decimal places.(Molar mass of NaCl = 58.44 g mol-1)
Question
How many moles are there in 7.415 g of NaCl?Give your answer in moles and to three decimal places.(Molar mass of NaCl = 58.44 g mol-1)
Solution
To find the number of moles in a given mass of a substance, you can use the formula:
Number of moles = mass of substance (in grams) / molar mass (in g/mol)
Given: Mass of NaCl = 7.415 g Molar mass of NaCl = 58.44 g/mol
Step 1: Substitute the given values into the formula:
Number of moles = 7.415 g / 58.44 g/mol
Step 2: Perform the division to find the number of moles:
Number of moles = 0.127 moles
So, there are 0.127 moles in 7.415 g of NaCl.
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