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umka2103 [35]
3 years ago
10

1. How many grams are in 1.4 moles of Mg(NO3)2?

Chemistry
1 answer:
Inessa [10]3 years ago
5 0

Explanation:

molar mass of the compound = 24 + 2× 14+ 16×6

= 24 + 28 + 96

= 148g/mol

no of moles = given mass / molar mass of the compound

1.4 = given mass/ 148

1.4×148=given mass

207.2 g

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Charcoal from the dwelling level of the Lascaux Cave in France gives an average count of 0.97 disintegrations of ^14 C per minut
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