Advertisements
Advertisements
प्रश्न
Calculate the relative molecular mass of Ammonium sulphate.
(use K = 39, Cl = 35.5, O = 16, C = 12, H = 1, Na = 23, N = 14, S= 32)
Advertisements
उत्तर
The relative molecular mass of Ammonium sulphate (NH4)2SO4 is :
[atomic mass of 2 N atom + Atomic mass of 8 H atom + atomic mass of 1 S + atomic mass of 4 O atom]
14 x 2 + 8 x 1 + 32 + 16 x 4 = 132.
APPEARS IN
संबंधित प्रश्न
Calculate the percentage composition of oxygen in lead nitrate [Pb(NO3)2]. [Pb = 207, N= 14, O = 16]
Calculate the percentage of water in ferrous sulphate crystals.
[Fe = 56, S = 32, O =16, H = 1].
Calculate the percentage of platinum in ammonium chloroplatinate (NH4)2PtCl6.
[N = 14, H = 1, Pt = 195, Cl =35.5]
(Give your answer correct to the nearest whole number)
4.5 moles of calcium carbonate are reacted with dilute hydrochloric acid.
- Write the equation for the reaction.
- What is the mass of 4.5 moles of calcium carbonate? (Relative molecular mass of calcium carbonate is 100).
- What is the volume of carbon dioxide liberated at STP?
- What mass of calcium chloride is formed? (Relative molecular mass of calcium chloride is 111).
- How many moles of HCl are used in this reaction?
Give one word or phrase for the following:
The ratio of the mass of a certain volume of gas to the mass of an equal volume of hydrogen under the same conditions of temperature and pressure.
Give one word or phrase for the following:
Formation of ions from molecules.
Which of the following would weigh most?
Calculate the volume occupied at S.T.P. by 2 moles of SO2.
The atomic mass of Chlorine is 35.5. What is its vapour density?
The vapour density of CH3OH is ______. (At. Wt. C = 12, H = 1, O = 16)
