Exercise 6.47: Problems - The Mole Concept Part A Complete the following table C

Question

Exercise 6.47: Problems - The Mole Concept Part A Complete the following table Complete the second column of the table Enter your answers numerically separated by a comma. Compound Mass Moles H20 130 kg N20 SO2 CH2Cl2 |-- 8.00 g 2.62 0.0639 Submit My Answers Give Up Incorrect Iry Again, 5 attempts remaining Part B Complete the third column of the table Enter your answers numerically separated by a comma. 1/H20. VN20-7440, 0.105 mol Submit My Answers Give Up Incorrect Iry Again, 5 attempts remaining ide Feedback Continue

Explanation / Answer

a)

mass SO2 = mol*MW = 2.62*64 = 167.68 g of SO2

mass CH2Cl2 = mol*MW = 0.639* 84.93 = 54.27027 g of CH2Cl2

b)

grams of NaCl in n = 2.4 mol of NaCl

MW of NACl = 58 g/mol

then

mass = mol*MW = 2.4*58 = 139.2 g of NaCl

B)

water molecules in a block

n = 1 mol ofH2O

1 mol = 6.022*10^23 molecules (According to avogrado)

III

dozens of atoms in a piece of 6.022*10^3

then

dozenes = x/12

therefore

dozens = (6.02"*10^3)/12 = 5.0183 *10^22 dozens

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