SSC
CHEMISTRY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Calculate the formula mass of
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74.5
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4.5
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90
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None of the above
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Explanation:
Detailed explanation-1: -The molar mass of KCl is 74.5513 grams/mol.
Detailed explanation-2: -Answer: The formula of sodium chloride is Nacl. The atomic unit of sodium is 22.99 g/mol. The atomic mass of chlorine is 35.45 g/mol. This shows the formula mass of sodium chloride is 22.99 + 35.45 = 58.44 g/mol.
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