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States Of Matter

Question
CBSEENCH11005916
Wired Faculty App

Calculate the total number of electrons present in 1.4 g of dinitrogen gas.

Solution
Number space of space moles space space equals space fraction numerator Weight space over denominator Molecular space mass end fraction therefore space space 1.4 space straight g space straight N subscript 2 space equals space fraction numerator 1.4 over denominator 28 end fraction space mol space equals space 0.05 space mol space space space space space space space space space space space space space space space space space space equals space 0.05 space cross times space 6.022 space cross times space 10 to the power of 23 space molecule space space space space space space space space space space space space space space space space space space space equals 3.01 space cross times space 10 to the power of 22 space molecules Now space 1 space molecule space of space straight N subscript 2 space contains space space equals space 14 space electrons space space space space space space space space therefore space space Total space number space of space electrons space present space in space 1.4 space straight g space straight N subscript 2 space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space equals 3.01 space cross times space 10 to the power of 22 space cross times space 14 space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space equals space 4.214 space cross times 10 to the power of 23 space electrons

Some More Questions From States of Matter Chapter

Can absolute zero temperature be attained for a gas?

How pressure of a given sample of gas is related to absolute temperature at constant volume?

How is the pressure of a gas related to the number of molecules of the gas at constant temperature and volume?

What is standard (or normal) temperature and pressure (STP)?

What does SATP stand for? Define it.

What is the value of molar volume at STP?

What is standard molar volume?

What is the value of gas constant in SI units?

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