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Author Question: How many millimoles of Ca(NO3)2 contain 4.78 1022 formula units of Ca(NO3)2? The molar mass of ... (Read 86 times)

shenderson6

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Question 1

Calculate the molar mass of H2CO3.
◦ 61.02 g mol-1
◦ 74.04 g mol-1
◦ 29.02 g mol-1
◦ 60.01 g mol-1
◦ 62.03 g mol-1

Question 2

How many millimoles of Ca(NO3)2 contain 4.78 × 1022 formula units of Ca(NO3)2? The molar mass of Ca(NO3)2 is 164.10 g mol-1.
◦ 79.4 mmol Ca(NO3)2
◦ 12.6 mmol Ca(NO3)2
◦ 20.7 mmol Ca(NO3)2
◦ 13.0 mmol Ca(NO3)2
◦ 57.0 mmol Ca(NO3)2


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Marked as best answer by shenderson6 on Nov 18, 2019

kingdude89

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shenderson6

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Reply 2 on: Nov 18, 2019
Gracias!


meow1234

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Reply 3 on: Yesterday
Excellent

 

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