Chemistry, 21.01.2021 14:10 reetajmahfouz3816
- A 300g sample of CaCO3 was heated until 10 L of CO2 was collected
at 50°C and 742 torr. What percentage of the CaCO, had
decomposed? (Atomic weights (g/mol): C=12, 0=16, Ca=40)
A. 6.84%
B. 9.10%
C. 12.3%
D. 15.8%
Answers: 1
Chemistry, 22.06.2019 06:00
According to each substances heat of fusion, which of the items below requires more heat to be added per gram of substance to go from solid to liquid? silver sulfur water lead
Answers: 2
Chemistry, 22.06.2019 13:30
How many moles is 14.5 cm^3 of platinum? the density of platinum is 21.45 g/cm^3.
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- A 300g sample of CaCO3 was heated until 10 L of CO2 was collected
at 50°C and 742 torr. What perc...
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