Question

How many atoms in total present in 1 kg sugar

Answer 1

45 atoms in total are present in 1kg of sugar .

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Answer 2

☆☆ AS-SALAMU-ALYKUM ☆☆

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GIVEN :-
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MASS OF SUGAR = 1 Kg = 1000g

REQUIRED :-
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ATOMS OF SUGAR =?

FORMULA:-
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MOLES = NUMBER OF ATOMS ÷ AVAGADRO NUMBER

BUT MOLES ARE NOT GIVEN

SO .............

MOLES OF SUGAR = MASS OF SUGAR ÷ MOLAR MASS

MOLAR MASS OF SUGAR = SUGAR MEANS C6H12O6 = 12×6 + 1×12 +16×6 = 72+12+96= 180 g/mol

MOLES OF SUGAR = 1000÷ 180

MOLES OF SUGAR =5.555mol

NOW

MOLES OF SUGAR = NUMBER OF ATOMS ÷AVAGADRO NUMBER

NUMBER OF ATOMS =AVAGADRO NUMBER ×MOLES OF SUGAR

NUMBER OF ATOMS OF SUGAR = 6.02×10^23 × 5.55

NUMBER OF ATOMS OF SUGAR = 33.4×10^23 atoms

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