Chemistry, 23.03.2020 03:15 allanarayos5597
If a sample contains 100.0 g of lead atoms (Pb), how many atoms are present in the sample?
a. 100 atoms
b. 0.04826 atoms
c. 2.906 x 10^23 atoms
d. 3.441 x 10^ -24 atoms
e. 6.022 x 10^23 atoms
Answers: 2
Chemistry, 22.06.2019 14:00
Ascientist measures the speed of sound in a monatomic gas to be 449 m/s at 20∘c. what is the molar mass of this gas?
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Chemistry, 23.06.2019 02:50
What is the typical rotational frequency frot for a molecule like n2 at room temperature (25∘c)? assume that d for this molecule is 1å=10−10m. take the total mass of an n2 molecule to be mn2=4.65×10−26kg. you will need to account for rotations around two axes (not just one) to find the correct frequency. express frot numerically in hertz, to three significant figures.
Answers: 3
If a sample contains 100.0 g of lead atoms (Pb), how many atoms are present in the sample?
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