Hello Sir, After seeing the video ....still i am not cleared with one Law: Law of multiple proportion .....In this I am cleared with the statement but having problem while solving questions.....I have tried many but didn't ge any of them.... Please Help me ...??

Asked by princes | 2nd Jun, 2012, 12:23: PM

Expert Answer:

Hydrogen can react with oxygen in a couple of different ways.  One way occurs when you take two moles of hydrogen and react it with one mole of oxygen.  When you do this, you make H2O.  Another way occurs when you take one mole of hydrogen and react it with one mole of oxygen:  When you do this, you make H2O2.

In the first case, two moles of hydrogen weigh 4 grams and one mole of oxygen weighs 32 grams.  The ratio of 
oxygen to hydrogen is 8:1. In the second case, one mole of hydrogen weighs 2 grams and one mole of oxygen weighs 32 grams.  The ratio of oxygen to hydrogen is 16:1.  Since 16 is equal to 8 x 2, this satisfies the law of multiple proportions.

Answered by  | 2nd Jun, 2012, 06:46: PM

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