Advertisements
Advertisements
Question
Calculate the number of moles in 27g of Al.
Solution
27 g of Al
Number of moles = `"Mass"/"Atomic mass"`
Number of moles in 27 g of Al = `27/27` = 1 mole.
APPEARS IN
RELATED QUESTIONS
Calculate the percentage of water of crystallization in CuSO4.5H2O
(H = 1, O = 16, S = 32, Cu = 64)
Choose the correct answer from the options given below:
The ratio between the number of molecules in 2g of hydrogen and 32g of oxygen is:
[Given that H = 1, O = 16]
The percentage composition of a gas is Nitrogen 82.35%, Hydrogen 17.64%. Find the empirical formula of the gas. [N = 14, H = 1]
Define or explain the term:
Gram atom
Calculate the number of molecules in one Kg of calcium chloride.
How many grams of CO2 is present in 0.1 mole of it?
Calculate the mass of 0.1 mole of the following:
CaCl2
(Ca = 40, Na=23, Mg =24, S=32, C = 12, Cl = 35.5, O=16, H=1)
Determine the number of molecules in a drop of water which weighs 0.09 g.
Correct the statement, if required.
The relative atomic mass of an element is the number of times one molecule of an element is heavier than `1/12` the mass of an atom of C12.
Raunak took 5 moles of carbon atoms in a container and Krish also took 5 moles of sodium atoms in another container of same weight.
- Whose container is heavier?
- Whose container has more number of atoms?