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Ilia_Sergeevich [38]
2 years ago
10

Scientific notation is used to express large numbers in convenient form true or false

Chemistry
1 answer:
Olin [163]2 years ago
4 0
<span>Scientific notation is used to express large numbers in a way that is to use, readable, comparable to other numbers and convenient. It is especially useful for things that are very large and very small because it is very tedious to work with many zero's when completing complex math problems.</span>
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Answer:

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PLEASE HELP!!!
trasher [3.6K]

Answer:

(a) oxygen

(b) 154g (to 3sf)

(c) 79.9% (to 3sf)

Explanation:

mass (g) = moles × Mr/Ar

note: eqn means chemical equation

(a)

moles of P = 84.1 ÷ 30.973 = 2.7152 moles

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Assuming all the moles of P is used up,

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(b)

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= 1.08608 × [ 2(30.973) + 5(16) ]

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(c)

% yield = actual/theoretical yield × 100%

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2 years ago
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