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प्रश्न
Four grams of caustic soda contains ______.
पर्याय
6.02 x 1023 atoms of it
4 g atom of sodium
6.02 x 1022 molecules
4 moles of NaOH
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उत्तर
Four grams of caustic soda contains 6.02 x 1022 molecules.
Explanation:
40 g of NaOH contains 6.023 x 1023 molecules
So, 4 g of NaOH contains = `4/40 xx 6.02 xx 10^23`
= `1/10 xx 6.02 xx 10^23`
= 6.02 x 1022 molecules
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संबंधित प्रश्न
What name is given to the amount of substance containing 6.022 × 1023 particles(atoms,molecules or ions) of a substance ?
If 0.2 mol of the following substance is required how many grams of that substance should be taken?
Sodium chloride
Prove the Following :
One mole of any gas contains th e same number of molecules.
Explain the term:
Mole
Fill in the blank
One gram atom of an element contains ______ atoms.
A flask contains 3.2g of sulphur dioxide.Calculate the following : The moles of sulphur dioxide present in the flask.
Correct the following statement :
Equal masses of all gases under identical conditions contain the same number of molecules.
Complete the following calculations. Show working for complete credit :
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Calculate the mass of 0.1 mole of the following:
Na2SO4.10H2O
(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?
2 moles of the hydrogen molecule, H2.
