12g of alkaline earth metal gives 14.8 g of nitride

Asked by admin @ 04/08/2021 in Chemistry viewed by 265 People

12g of alkaline earth metal gives 14.8g of its nitride.Atomic weight of metal is

Answered by admin @ 04/08/2021

Let the metal be M with atmic wt. be x

so 3M + N2 ---->M3N2

3x 3x+28

so, 12/3x = 14.8/(3x+28)

which in solving for x gives 40

the metal is calcium and its nitride is Ca3N2

Which of the following is an alkaline earth metal

Asked by admin @ 17/08/2021 in Chemistry viewed by 302 persons

Which of the following is an alkaline earth metal? Lithium Beryllium Fluorine Neon

Where are alkaline earth metals found on the periodic table

Asked by admin @ 02/08/2021 in Chemistry viewed by 370 persons

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Groups contain alkaline earth metals are

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Describe the groups which contain alkaline earth metal

Electron configuration for alkaline earth metals

Asked by maham237 @ 31/12/2020 in Chemistry viewed by 275 persons

Identify the outer electron configurations for the (a) alkali metals, (b) alkaline earth metals, (c) halogens, (d) noble gases.

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Which metal nitrate gives colourless gas on thermal decomposition

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The density of chromium metal is 7.20 g/cm3. if the unit cell is cubic

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The density of copper metal is 8.95 g cm3

Asked by admin @ 13/08/2021 in Chemistry viewed by 286 persons

Ques.The density of copper metal is 8.95 g cm3. If the radius of copper atom is 127.8 pm, is the copper unit cell a simple cubic, a body-centred cubic or …

Earthing is necessary to give protection against

Asked by admin @ 10/08/2021 in Physics viewed by 304 persons

Earthing Is Necessary To Give Protection Against _______. (a) danger of electric shock (b) voltage fluctuation (c) overloading (d) high temperature of the conductors