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marusya05 [52]
3 years ago
13

A 133.8-gram sample of bronze was 10.3% tin by mass. Determine the total mass of tin in the sample.

Chemistry
1 answer:
Kay [80]3 years ago
6 0
You just need to multiply the total mass by the decimal value of the part that is tin. 133.8*0.103=13.8g (following the rules of significant figures).
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See explanation

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The equation of the reaction is;

C3H8 + 5O2 ----> 3CO2 + 4H2O

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12 moles of oxygen yields 12 × 3/5 = 7.2 moles of CO2

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b) Actual yield = 269.34 g

Theoretical yield = 396 g

% yield = actual yield/theoretical yield × 100/1

% yield = 269.34 g /396 g × 100

% yield = 68%

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