Question

For which of the following formula mass is used instead of molecular mass
(a) NaCl
(b) C⁶H¹²O⁶
(c) NH²CONH²
(d) Ice​

Answer 1

Answer:

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(a) NaCl

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Answer 2

The answer is (a) NaCl
As it is an ionic compound so its formula mass is used.
Others are covalent compounds, so molecular mass is used.
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