Compound X has a molar mass of 102.18 g·mol?¹ and the...

Transcript

00:01 Student we have an question that is compound x has a molar mass of here we write 102 .18 gram then mole inverse and here the compositions are given here element carbon which contain the mass percentage which is 58 .77 percentage then another one is hydrogen here hydrogen 13 .81 percentage then another one is nitrogen here which is contained 27 .4 2 percentage so here first we divide molar mass to get the number of moles of each here we have given carbon here given 58 here right 58 .7 percentage is here given which is here given which is divided by molar mass of carbon which is 12 .01 which is equal to 4 .8934 then hydrogen your hydrogen is what 13 .81 percentage so here you write 13 .81 percentage which is divided by hydrogen its molar mass is 1 .008 then which is equal to 13 point here 7004 here you write 7004 then then here then here nitrogen is given here nitrogen is 27 .42 which is divided by its molar mass which is 14 .01 then which is equal to 1 .9572 in here in next step we divide here right divide by smallest here the smallest is nitrogen which is 1 .9572 so here we divide the value divided by 1 .9572 so here carbon which is equal to 4 point here the value is 4 .894 which is divided by 1 .9572 which is equal to 2 .5 then hydrogen which is 13 .704 which is divided by 1 .9572 which is equal to 7 then nitrogen which is equal to 1 .9572 which is divided by 1 .9572 which is equal to 1 then here we multiply by 2 to get simplest whole number ratio so here we multiply right multiplying 2 in here so carbon which is called to which is equal to 2 .5 which is multiplied by 2 which is equal to 5 the hydrogen which is equal to 7 which is multiplied by 2 then which is equal to 14 then nitrogen which is 1 which is multiplied by 2 then which is equal to 2 so here the empirical formula here right so empirical formula is which is equal to carbon content 5 then hydrogen content 14 then nitrogen content then here we calculate the molar mass of very right molar mass of c5 h 14 n2 so here molar mass which is equal to 5 which is multiplied by carbon here carbon which is 12 .01 then plus 14 which is multiplied by hydrogen which is 1 .008 plus nitrogen which is 2 mole so here 2 which is multiplied by 14 .01 so which is equal to 102 .182 which unit is gram per mole so here we have the molar mass which is 102 .102...

Question

Compound X has a molar mass of 102.18 g·mol?¹ and the following composition: element mass % carbon 58.77% hydrogen 13.81% nitrogen 27.42% Write the molecular formula of X.

Question

Compound X has a molar mass of 102.18 g·mol?¹ and the following composition: element mass % carbon 58.77% hydrogen 13.81% nitrogen 27.42% Write the molecular formula of X.

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