Calculate the mass in grams corresponding to 10.0 mol He? Calculate the number o

Question

Calculate the mass in grams corresponding to 10.0 mol He?

Calculate the number of silver atoms in 15.0g of silver?
Calculate the number of miles corresponding to 40g Na?


Compare and contrast the gas, liquid, and solid states with regard to the average distance of particle separation? Calculate the mass in grams corresponding to 10.0 mol He?

Calculate the number of silver atoms in 15.0g of silver?
Calculate the number of miles corresponding to 40g Na?


Compare and contrast the gas, liquid, and solid states with regard to the average distance of particle separation?

Calculate the number of silver atoms in 15.0g of silver?
Calculate the number of miles corresponding to 40g Na?


Compare and contrast the gas, liquid, and solid states with regard to the average distance of particle separation?

Explanation / Answer

1 mol He = 20.18 g He

10.0 mol He = 10 x 20.18 = 201.8 g

mass of He = 201.8 g

2) 107.9 g Ag = 6.023 x 1023 Ag atoms

15.0 g Ag = 15 x 6.023 x 1023 /107.9 = 8.37 x 1022 Ag atoms

Ag atoms = 8.37 x 1022

3) 23 g Ag = 1.0 mole

40 g Na = 40 x 1 / 23 = 1.74

moles of Na = 1.74

4) in solids particles are clise compact nature.

in liquids little far compared to solid and closer then gases

in gases particles are as far as possible.

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