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प्रश्न
Fill in the blank
Avogadro's number is equal to ______
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उत्तर
Avogadro's number is equal to 6.023 x 1023
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संबंधित प्रश्न
Fill in the following blanks :
0.5 mole of calcium element has a mass of ............... .
What name is given to the amount of substance containing this number of atoms ?
Which of the following correctly represents 360 g of water ?
- 2 moles of H2O
- 20 moles of water
- 6.022 × 1023 molecules of water
- 1.2044 × 1025 molecules of water
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.
Find the number of molecules in 3.2 g of SO2.
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.
Which of the following weighs the least?
How many grams are there in the following?
2 moles of the hydrogen molecule, H2.
