Advertisements
Advertisements
Question
Calculate the number of moles in 27g of Al.
Advertisements
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 molar mass of the following substance:
Nitric acid, HNO3
One of the following elements has an atomicity of ‘one’. This element is :
How many moles are represented by 100 g of glucose, C6H12O6 ? (C = 12 u, H = 1 u, O = 16 u)
If 0.2 mol of the following substance is required how many grams of that substance should be taken?
Sodium chloride
Fill in the blank
One gram atom of an element contains ______ atoms.
Define or explain the term:
Relative atomic mass
Find the number of molecules in 3.2 g of SO2.
Calculate the mass of 0.1 mole of the following:
Mg
(Ca = 40, Na = 23, Mg = 24, S = 32, C = 12, Cl = 35.5, O = 16, H = 1)
How many grams are there in the following?
3 moles of chlorine molecule, Cl2.
Deduce the number of molecules of the following compound in the given quantity.
7.1 g chlorine
