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प्रश्न
Give one word or phrase for the following:
Formation of ions from molecules.
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उत्तर
Ionisation
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संबंधित 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)
What is the mass of nitrogen in 1000Kg of urea [CO(NH2)2] ?
[H = 1, C= 12, N= 14, O = 16]
Concentrated nitric acid oxidises phosphorus to phosphoric acid according to the following equation:
\[\ce{P + 5HNO3 -> H3PO4 + H2O + 5NO2}\]
- What mass of phosphoric acid can be prepared from 6.2 g of phosphorus?
- What mass of nitric acid will be consumed at the same time?
- What will be the volume of steam at the same time measured at 760 mm Hg pressure and 373°C?
(H = 1; N = 14; O = 16; P = 31∴ )
The reaction of potassium permanganate (VII) with acidified iron (II) sulphate is given below:
2KMno4 + 10FeSO4 + 8H2O → K2SO4 + 2MnSO4 + 5Fe2(SO4)3 + 8H2O
If 15.8g of potassium permanganate (VII) was used in the reaction, calculate the mass of iron (II) sulphate used in the above reaction.
Calculate the percentage of nitrogen in aluminium nitride. [Al = 27, N = 14]
Calculate the percentage of sodium in sodium aluminium fluoride (Na3AIF6).
[F = 19, Na = 23, Al = 27]
A compound 'X' consists of 4.8% of C and 95.2% of Br by mass.
Name the type of chemical reaction by which X can be prepared from ethane.
Explain the term:
Vapour density
The atomic mass of Chlorine is 35.5. What is its vapour density?
Correct the statement, if required.
Under similar conditions of temperature and pressure, two volumes of hydrogen combined with two volumes of oxygen will give two volumes of water vapour.
