Question

Use the periodic table to calculate the molar mass of each compound below. Give your answer to the correct number of significant figures.

Sodium hydroxide (NaOH):
g/mol
Water (H2O):
g/mol
Glucose (C6H12O6):
g/mol
Calcium sulfate (CaSO4):
g/mol
Magnesium phosphate (Mg3(PO4)2):
g/mol

Answer 1

Answer:

The answer to your question is below

Explanation:

Sodium hydroxide (NaOH):   39 g/mol

Na = 23 O = 16 H =1        MM = 23 + 15 + 1 = 39

Water (H2O):   18 g/mol

H =1 O = 16                       MM = 1 x 2 + 16 = 2 + 15 = 18

Glucose (C6H12O6):   180 g/mol

C = 12 H = 1 O = 16           MM = 12 x 6 + 12 x 1 + 16 x 6 = 72 + 12 + 96 = 180

Calcium sulfate (CaSO4):  136 g/mol

Ca = 40   S = 32 O = 16   MM = 40 + 32 + 16x4 = 40 + 32 + 64 = 136

Magnesium phosphate (Mg3(PO4)2):   264 g/mol

Mg = 24 P = 31 O = 16     MM = 24 x 3 + 31x2 + 16 x 8 = 72 + 64

                                                  + 128 = 264

Answer 2

Answer:

40.0

18.02

180.18

136.15

262.87

Explanation:

its in order