1. Which statement best describes molar mass? a. the mass of 6.02 x 1023 atoms, which is constant for all substances b. the mass in grams of 6.02 x 1023 particles of a given substance, which is unique to each substance C. the mass of a substance that is required to be visible to the naked eye d. the mass of particles in exactly 1.0 L of gas 2. An element X has a molar mass of 40.0 g/mol. How many moles are in 10 grams of element X? a. 400 moles b. 4.00 moles C. 0.250 moles d. 25.0 moles

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Pls help ASAP on both pls i beg

1. Which statement best describes molar mass?
a.
the mass of 6.02 x 1023 atoms, which is constant for all substances
C.
the mass in grams of 6.02 x 1023 particles of a given substance, which is unique to each substance
the mass of a substance that is required to be visible to the naked eye
d. the mass of particles in exactly 1.0 L of gas
2. An element X has a molar mass of 40.0 g/mol. How many moles are in 10 grams of element X?
a. 400 moles
0.250 moles
b.
4.00 moles
25.0 moles
C.
d.
Transcribed Image Text:1. Which statement best describes molar mass? a. the mass of 6.02 x 1023 atoms, which is constant for all substances C. the mass in grams of 6.02 x 1023 particles of a given substance, which is unique to each substance the mass of a substance that is required to be visible to the naked eye d. the mass of particles in exactly 1.0 L of gas 2. An element X has a molar mass of 40.0 g/mol. How many moles are in 10 grams of element X? a. 400 moles 0.250 moles b. 4.00 moles 25.0 moles C. d.
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