Advertisements
Advertisements
प्रश्न
Fill in the blank
One gram atom of an element contains ______ atoms.
Advertisements
उत्तर
One gram atom of an element contains quantity of element which weights equal to its gram atomic mass atoms.
APPEARS IN
संबंधित प्रश्न
Calculate the molar mass of the following substance:
Hydrochloric acid, HCl
A gas cylinder can hold 1 kg of hydrogen at room temperature and pressure
1) Find the number of moles of hydrogen present.
2) What weight of CO2 can the cylinder hold under similar conditions of temperature and pressure? (H = 1, C = 12, O = 16)
3) If the number of molecules of hydrogen in the cylinder is X, calculate the number of CO2 molecules in the cylinder under the same conditions of temperature and pressure.
4) State the law that helped you to arrive at the above result.
What is meant by ‘a mole of carbon atoms’ ?
Define the term:
Avogadro’s number
Calculate the number of molecules in 12.8g of sulphur dioxide gas. Take Avogadro's number as 6 x 1023.
[S = 32, 0 = 16 ]
Calculate the mass of 0.1 mole of carbon dioxide.
[Atomic mass: S = 32, C = 12 and O = 16 and Avogadro's number = 6 × 1023]
Calculate the number of particles in 0.1 mole of any substance.
How many grams of H2O are present in 0.2 mole of it?
Determine the number of molecules in a drop of water which weighs 0.09 g.
Solid ammonium dichromate decomposes as:
\[\ce{(NH4)2Cr2O7 -> N2 + Cr2O3 + 4H2O}\]
If 63 g of ammonium dichromate decomposes. Calculate the quantity in moles of (NH4)2Cr2O7.
