dbenitezmontoya3
13.04.2020 •
Chemistry
Sample of gas in a 0.25 L container has a mass of 0.433g at 0.98atm and 28°C. what’s the molar mass in g/mol?
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Ответ:
0.5 g or D
Explanation:
what is the mass of solute dissolved in 10.0 g of 5.00% Sugar solution?
A. 0.900 g
B. 0.180 g
C. 10.0 g
D. 0.500 g
E. 9.50 g
5% of the solution is sugar
o 10 g of the solution will have 9.5 g H2O and 0.5 g of sugar
0.5 /(9.5 +0.5) = 0.5/10 = 0.05 = 5 PER HUNDRED = 5%
so 0.5 g or D