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प्रश्न
What is the mass of 4 moles of aluminium atoms (Atomic mass of aluminium = 27)?
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उत्तर
The mass of 4 moles of aluminium atoms is (4 × 27) g = 108 g.
संबंधित प्रश्न
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]
Fill in the following blanks :
A mole represents an .............. number of particles of a substance.
What name is given to the amount of substance containing this number of atoms ?
How many moles are there in 34.5 g of sodium ? (Atomic mass of Na = 23 u)
How many moles are represented by 100 g of glucose, C6H12O6 ? (C = 12 u, H = 1 u, O = 16 u)
Calculate the mass in grams of 0.17 mole of hydrogen sulphide, H2S. (Atomic masses : H = 1 u, S = 32 u)
If 0.2 mol of the following substance is required how many grams of that substance should be taken?
Sodium chloride
What is the value of molar volume of a gas at S.T.P?
Define or explain the term:
Relative atomic mass
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.
