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Phele 69.9 ko approx 70 g = given mass man then divide by the atomic mass of fe that's 56 u will get 70 /56 = 20/16 or 5/4 . Now take 30.1 as given mass for oxygen / divide this by 16 g which is the atomic mass for oxygen . So u will get 30 /16 here I have approxed 30.1 to 30 now since 20 /16 is smaller divide 30 /16 by it and u will get 3 :2 = moles of o :moles of fe . Compare and get the formula Fe2O3 and also mf = ef ( Here the simplest ratio is 2:3 itself )
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Sir woh C2H8O2 wala direct percentage se bhi nikal sakte hai na toh itna lamba way se kyu kiya aapne?? For example. For carbon. 37.5 * 64 / 100 = 24 and carbon ka mass is 12 toh 2 atoms hue...similarly sabka aise nikal sakte hai na???
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If you really want to know the trick to how to find emprical formula when percentage is given then start from 12:35
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%composition of H in H2O is 11.11 not 11.79
and %composition of O is 88.88 not 88.21 according to your calculations
Yes man I am also confused
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In C2H5OH
% of carbon =52.17
% of hydrogen =13.04
% of oxygen = 34.78
Kse smjh ni aaya 24 carbon or 6 hydrogen kse kha se aaya??
@@ankitachaturvedi5994 Isme carbon ke 2 atom hai 1 atom ka mass 12 two atom = 12×2 = 24
Hydrogen ke 6 atom
1 atom ka mass = 1 U 1U × 6 = 6u
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sir please tell me how to solve the question " determine the emperical formula of an oxide of iron which has 69.9% iron and 30.1% dioxygen by mass
Its an Example in Book
Take notes
Bhai Tera ans aayega fe2o3
Phele 69.9 ko approx 70 g = given mass man then divide by the atomic mass of fe that's 56 u will get 70 /56 = 20/16 or 5/4 . Now take 30.1 as given mass for oxygen / divide this by 16 g which is the atomic mass for oxygen . So u will get 30 /16 here I have approxed 30.1 to 30 now since 20 /16 is smaller divide 30 /16 by it and u will get 3 :2 = moles of o :moles of fe . Compare and get the formula Fe2O3 and also mf = ef ( Here the simplest ratio is 2:3 itself )
Fantastic video i got everything related to E.F and M.F. thnku sir🙏🙏🙏👍👍☺
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Answer c=52.1%
H=13.4%
O=34.7%👍👍👍
H 13.04 hoga
13.04%
Yes H is 13.04 but still good you tried and succeeded
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C=52.17% ,H=13.04,O=34.34%
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Sir from where U R
Such a Great 👍🏻 Explanation 😃
First time I understand It
Everything 😊
C℅=52.17
%H=14.60
%O=34.7
These are % composition of C2H5OH
Percentage of hydrogen is wrong
Its 13.04
In a day two video. Just sufficient. Still want more😍😍
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Good evening sir Thank-you for lecture👍👍👍C=52.17% H=13.04% O=34.78%
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10;53
percent of carbon=24/46x100=52.21percent
percent of hydrogen=6/46x100=12.12percent
percent of oxygen=16/46x100=35.67percent....
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How about rounding up to their simplest whole number in case of decimal.. Plz explain
Yes plz make a video on this. Its creating a big problem for us 🙏
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Ans is...C = 52.17%, H = 13.04%,
O = 34.78%
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Indrayani Chavhan Give me ans....moles concept kha h...NCERT me...
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Some basic concept of chemisry
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Sir if molar mass is not given means how should we calculate
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Mass percentage of C - 26.08 percentage
H- 13.04 percentage
O- 34.78 percentage
Mass percentage of hydrogen in water is 11.11percentage not 11.79 percentage
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% of carbon = 52.17%
% of hydrogen = 13.04%
% of oxygen = 34.78%
c-52.17,H-13.04 and o-34.78
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A big thanks .... tommorow is my exam🥴🥴
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ans:) C=52.17
H=13.04
O=34.78
Sir woh C2H8O2 wala direct percentage se bhi nikal sakte hai na toh itna lamba way se kyu kiya aapne??
For example. For carbon. 37.5 * 64 / 100 = 24 and carbon ka mass is 12 toh 2 atoms hue...similarly sabka aise nikal sakte hai na???
Bhut Acha smjhia Hy sir ap na bhut easy way ma❤
Ans is c=52.17 h=13.04 o=34.78 and thanks sir
Percent composition of Carbon= 52.1%
Percent composition of Oxygen= 13.3%
Percent composition of Hydrogen= 13.3%
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Sir we can get the mf by converting% into atomic mass
Eg:- C -37.5% = 24g = 2C
H -12.5% = 8g = 8H
O - 50% = 32g = 2O
Thanks sir you maked me Free of confusion......................!😊
C-52;17
H-13;04
O-34 present
51.17
13.04
34.78
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% of carbon= 52.17 %
% of hydrogen= 13.04%
% of oxygen= 34.78
in acetic acid
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