Advertisements
Advertisements
प्रश्न
How many atoms are there in 0.25 mole of hydrogen ?
Advertisements
उत्तर
0.25 moles of hydrogen
Number of hydrogen atoms in 1 mole = 6.022 × 1023
Therefore, number of atoms in 0.25 moles = 6.022 × 1023 × 0.25 = 1.50 × 1023 atoms
Hence, number of hydrogen atoms in 0.25 moles is 1.50 × 1023
APPEARS IN
संबंधित प्रश्न
The percentage composition of a gas is Nitrogen 82.35%, Hydrogen 17.64%. Find the empirical formula of the gas. [N = 14, H = 1]
How many moles are 3.6 g of water ?
How many moles of calcium carbonate (CaCO3) are present in 10 g of the substance ? (Ca = 40 u ; C = 12 u ; O = 16 u)
How many moles are there in 34.5 g of sodium ? (Atomic mass of Na = 23 u)
Deduce the number of molecules of the following compound in the given quantity.
32g oxygen
The relative atomic mass of Cl atom is 35.5 a.m.u. Explain this statement.
Calculate the number of gram atoms in 4.6 grams of sodium (Na = 23)
Calculate the number of moles of methane in 0.80 g of methane.
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.
How many grams are there in the following?
3 moles of chlorine molecule, Cl2.
