What is the number of atoms present in 1 mole of oxygen gas?
6.022 x 10^23
2 * 6.022 x 10^23
3 * 6.022 x 10^23
4 * 6.022 x 10^23
Related Questions
Which of the following contains the maximum number of water molecules?
18 moles of water
18 molecules of water
18 grams of water
18 g of
Suppose the Avogadro constant was . How many atoms would be present in 0.5 moles of helium?
10g of which of the following substances contains the greatest number of atoms?
He
Ne
Which of the following contains the largest number of water molecules?
100 g of water
18 g of ice
0.25 moles of water
100 ml of water vapor at STP
A sample of magnesium carbonate weighing 30.0 g is heated until it completely decomposes to magnesium oxide and carbon dioxide. If 12.0 g of magnesium oxide is produced, what is the percentage purity of the original magnesium carbonate sample? (Atomic weight: )
60
75
84
90
Upon heating, 15.0 g of impure zinc carbonate decomposes completely to produce zinc oxide and carbon dioxide. If 5.6 g of zinc oxide is formed, calculate the percentage purity of the zinc carbonate sample. (Atomic weight: )
57.6
65.4
72.8
81.4
Which sample contains the largest number of helium atoms?
0.1 mol of He
0.2 mol of He
0.1 mol of
0.1 mol of
of are passed over hot coke. The maximum volume of CO formed is :
How many moles are present in 18g of water (H2O)?
1 mol
0.5 mol
2 mol
18 mol
