Molar Masses Answers

6 verified answers2 views

Use the periodic table to identify the molar mass of each element below. Answer without doing any calculations.Beryllium (Be):

4.00 g/mol

5.01 g/mol

9.01 g/mol

Silicon (Si):

14.00 g/mol

14.09 g/mol

28.09 g/mol

Calcium (Ca):

20.00 g/mol

20.08 g/mol

40.08 g/mol

Rhodium (Rh):

45.00 g/mol

57.91 g/mol

102.91 g/mol

The molar mass of copper(II) chloride (CuCl2) is 134.45 g/mol. How many formula units of CuCl2 are present in 17.6 g of CuCl2?

7.88 × 1022 formula units

1.84 × 1023 formula units

1.91 × 1023 formula units

1.42 × 1024 formula units

The molar mass of barium nitrate (Ba(NO3)2) is 261.35 g/mol. What is the mass of 5.30 × 1022 formula units of Ba(NO3)2?

0.0900 g

12.0 g

23.0 g

3,130 g

Did you find these answers helpful?

More from this Course