- 19. Approximations
deutlich
Which approximation has more than 10% error? (On exams you wil...
- 19. Approximations
deutlich
Which approximation has more than 10% error? (On exams you will always be provided with precise
values for constants and unit conversions)
a) Avogadro's number is about 1024
b) Water has a molar mass of about 20 g/mole
c) The speed of light is 3 x 108 m/s
d) The gas law constant is 8 J/mole K
Answers: 2
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Calculate - analysis of compound composed of iron and oxygen yields 174.86 of fe and 75.14g of o. what is the empirical formula for this compound?
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At 450 mm hg a gas has a volume of 760 l, what is its volume at standard pressure
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What causes different colors to appear in the sky? the absorption of light by air molecules the reflection of light by bodies of water the greenhouse effect in earth's atmosphere the scattering and reflection of light by dust particles
Answers: 2
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