SCIENCE
CHEMISTRY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Formula mass of HF
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20g
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10g
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11
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20
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Explanation:
Detailed explanation-1: -Answer and Explanation: The molar mass of HF is around 20 grams per mole, or 20.006 grams per mole, to be specific. Molar mass is determined by using the atomic mass of the two elements that make up HF: hydrogen and fluorine.
Detailed explanation-2: -The formula mass is obtained by adding the masses of each individual atom in the formula of the compound. Because a proper formula is electrically neutral (with no net electrons gained or lost), the ions can be considered atoms for the purpose of calculating the formula mass.
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