The density of air is 1-28 g litre -1. Express it in (a) g cm-3 (b) kgm-3
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1 ltr = 1000ml = 1000cm-3, so the first answer is simple 1.28/1000 g cm-3 i.e. 1.28x10-3 g cm-3
for the second part, 1 kg = 1000g and 1m-3 = 1000 ltr, thus both numerator and denominator increased by 1000 times cancel each other and the numerical value remains the same i.e. 1.28 kgm-3
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for the second part, 1 kg = 1000g and 1m-3 = 1000 ltr, thus both numerator and denominator increased by 1000 times cancel each other and the numerical value remains the same i.e. 1.28 kgm-3
hope it helps you. . . mark as a brainlist. . . . follow me. . .
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