A compound has a molar mass of 146 g/mol. What number is x in the chemical formula Mgx(HCO3)2?

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A compound has a molar mass of 146 g/mol. What number is x in the chemical formula Mgx(HCO3)2?

A.1
B. 2
C.4
D. 6

2006-10-09 11:42:51 · 2 answers · asked by Ashley C 1 in Science & Mathematics ➔ Chemistry

2 answers

A. 1

Because if you add up the rest of the compound element by element, you get 122g. Since Mg's mass is 24g, you only need 1 of it to get a total of 146g/mol.

2006-10-09 11:49:16 · answer #1 · answered by Anonymous · 0⤊ 0⤋

2006-10-09 18:45:03 · answer #2 · answered by Greg G 5 · 0⤊ 0⤋