Question 1

What is the molar mass of $Na_3P$

Accepted Answer

99.94 g/mol

Answer

161.88 g/mol

Answer

53.96 g/mol

Answer

115.90 g/mol

Question 2

What is the molar mass of $Mg_3(PO_4)_2$

Accepted Answer

262.87 g/mol

Answer

231.90 g/mol

Answer

119.28 g/mol.

Answer

214.25 g/mol

Question 3

What is the mass of 0.44 mol of NaCl?

Accepted Answer

2.6 g NaCl

Answer

13.28 g NaCl

Answer

0.0075 g NaCl

Answer

58.88 g NaCl

Question 4

Convert 4.67 g of K to moles.

Accepted Answer

0.119 mol K

Answer

183 mol K

Answer

43.77 mol K

Answer

3.91 mol K

Question 5

Convert 2.55 mol of $Al(OH)_3$ to grams

Accepted Answer

199 g $Al(OH)_3$

Answer

30.59 g $Al(OH)_3$

Answer

117.32 g $Al(OH)_3$

Answer

0.0326 g $Al(OH)_3$

Question 6

What is the molar mass of $Ca(NO_3)_2$ ?

Accepted Answer

164.10 g/mol

Answer

204.18 g/mol

Answer

150.09 g/mol

Answer

70.09 g/mol

Question 7

What is the mass of 0.0788 mol $AgNO_3$?

Accepted Answer

13.4 g $AgNO_3$

Answer

11 g $AgNO_3$

Answer

0.000464 g $AgNO_3$

Answer

216 g $AgNO_3$

Question 8

How many moles of $CH_4$ are present in 24.6 g of the compound?

Accepted Answer

1.53 mol $CH_4$

Answer

0.652 mol $CH_4$

Answer

395 mol $CH_4$

Answer

40.65 mol $CH_4$

Question 9

Convert 3.55 g of $Na_2CO_3$ to moles.

Accepted Answer

0.0335 mol $Na_2CO_3$

Answer

376 mol $Na_2CO_3$

Answer

29.8 mol $Na_2CO_3$

Answer

0.0696 mol $Na_2CO_3$

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