Advertisements
Advertisements
प्रश्न
Determine the number of molecules in a drop of water which weighs 0.09 g.
उत्तर
18 g of water has number of molecules = 6.02 x 1023
∴ 0.09 g of water will have no. of molecules = `(6.02 xx 10^23)/18 xx 9/100`
= 3.01 x 1021 molecules
APPEARS IN
संबंधित प्रश्न
Calculate the molar mass of the following substance:
Phosphorus molecule, P4 (atomic mass of phosphorus = 31)
Convert into mole.
22 g of carbon dioxide
Which of the following pair of elements represents a mole ratio of 1 : 1 ?
Explain the term : Gram atom
What do you understand by the term mole? How many elementary units are in one mole of a substance?
A sample of ammonium nitrate when heated yields 8.96 litres of steam (measured at STP)
NH4NO3 → N2O + 2H2O
What volume of dinitrogen oxide is produced at the same time as 8.96 L of steam?
The equation for the burning of octane is:
\[\ce{2C8H18 + 25O2 -> 16CO2 + 18H2O}\]
How many moles of carbon dioxide are produced when one mole of octane burns?
1 mole of any substance contains ______ molecules.
Calculate the number of moles in 27g of Al.
How many grams are there in the following?
4 moles of the phosphorous molecule, P4
