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davisdarby2
08.01.2021 •
Chemistry
The sugar in your kitchen has a molar mass of 342.3 g/mol. How many particles are present inside a sugar bowl if there are 250 grams of sugar in it?
A. 1.5 x 10^26 particles
B. 6.02 x 10^23 particles
C. 4.4 x 10^23 particles
D. 1.8 x 10^21 particles
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Ответ:
Number of particles inside a sugar bowl = 4.4 x 10²³
Further explanationGiven
The molar mass of sugar = 342.3 g/mol
mass of sugar = 250 g
Required
Number of particles
Solution
1 mol = 6.02 x 10²³ particles
mol of sugar :
mol = 250 g : 342.3 g/mol = 0.73 mol
Number of particles :
N = n x No
N = 0.73 x 6.02 x 10²³
N = 4.39 x 10²³ ≈ 4.4 x 10²³
Ответ:
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