mole concept
Easychemistry
Which statement correctly defines molality?
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More mole concept Practice Questions
EasyNEET
How many moles of oxygen atoms are present in 5.0 g of CaCO3? (Atomic masses: Ca=40, C=12, O=16)
How many moles of oxygen atoms are present in 5.0 g of CaCO3? (Atomic masses: Ca=40, C=12, O=16)
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MediumNEET
The density of a gas at STP is 1.25 g L⁻¹. Its molar mass is approximately:
The density of a gas at STP is 1.25 g L⁻¹. Its molar mass is approximately:
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MediumNEET
When 9.0 g of aluminium reacts completely with oxygen, how many grams of Al2O3 are formed? (2Al + 3/...
When 9.0 g of aluminium reacts completely with oxygen, how many grams of Al2O3 are formed? (2Al + 3/...
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EasyNEET
0.50 mol of CaCO3 is heated strongly. How many liters of CO2 (at STP) are evolved? (CaCO3 → CaO + CO...
0.50 mol of CaCO3 is heated strongly. How many liters of CO2 (at STP) are evolved? (CaCO3 → CaO + CO...
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EasyNEET
The mass percent of nitrogen in NH4 NO3 (Atomic masses: N=14, H=1, O=16) is:
The mass percent of nitrogen in NH4 NO3 (Atomic masses: N=14, H=1, O=16) is:
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