Related Questions
Oxygen and the oxide ion have the
Same proton number
Same electronic configuration
Same electron number
Same size
What is the mass of one mole of carbon dioxide (CO2)?
12g
22g
44g
66g
If 1 mole of a substance contains particles, how many particles are present in 0.5 moles?
1.505 x 10^23
3.011 x 10^23
6.022 x 10^23
12.044 x 10^23
0.5 moles of water contains how many molecules?
6.022 x 10²³ molecules
1.204 x 10²⁴ molecules
3.011 x 10²³ molecules
1.505 x 10²³ molecules
The production of 10 moles of ammonia by the Haber process requires how many moles of hydrogen gas, assuming complete reaction?
5
10
15
20
Which of the following has the maximum number of atoms?
1 g of H₂O
1 g of O₂
1 g of CH₄
1 g of Li
Which of the following contains the largest number of atoms?
1 g of
1 g of
1 g of
1 g of
How many moles are present in 18g of water (H2O)?
1 mol
0.5 mol
2 mol
18 mol
A mixture of and gases contains 0.44 g of and 0.56 g of . The total number of moles of gases in the mixture is:
0.01 moles
0.02 moles
0.03 moles
0.04 moles
2.24 L of a gas at STP weighs 3.2 g. The molecular weight of the gas is:
16 g/mol
32 g/mol
64 g/mol
128 g/mol
