Which Compound Has A Molar Mass Of 174.3 G Mol

Question: One mole of a substance has the same number of particles as one mole of any other substance, regardless of what substances are being compared.

Answer: True

Question: The percent by mass of each element in a compound is known as the percent composition of a compound.

Answer: True

Question: In order to convert the number of particles of a substance to the substance’s mass, it is necessary first to convert the number of particles to the number of moles.

Answer: True

Question: A mole is defined so that one mole of carbon-12 atoms has a mass of exactly 12 grams.

Answer: True

Question: Molar mass is the number of moles of a substance that would have a mass of 1 gram.

Answer: False

Question: The scientific name for freon is dichlorodifluoromethane. In one mole of freon, the chemical ratio of carbon to chlorine to fluorine is 2:1:2.

Answer: False

Question: A hydrate is a compound that reacts violently in the presence of water.

Answer: False

Question: An element’s molar mass is equivalent to the atomic number of the element.

Answer: False

Question: The empirical formula for a compound consists of the symbols for the elements in the compound without any subscripts.

Answer: False

Question: How many moles are present in 21.2 g hydrochloric acid?

Answer: 0.582 mol

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