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KatRina [158]
3 years ago
11

What is the percent yield of water from the combustion of propane (C3H8), if my theoretical yield is 8.17g of water and my actua

l yield was 6.13 g water?
A)Answer not shown

B)0.75%

C)75%

D)1.33%
Chemistry
1 answer:
Naddik [55]3 years ago
5 0

Answer:

im not sure

Explanation:

i went on here looking nobody answered yet

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a 32 gram radioactive sample has a half-life of 2 days how much of the original sample remains after 6 days
DiKsa [7]
<span>After 6 days, only 4 grams of the original amount will remain after 6 days. I have attached an image on how to calculate half-life so you can plug your give value into the formula.

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To add, </span>half-life means for<span> a substance decaying exponentially, the amount of time it takes for the amount of the substance to diminish by </span>half.

4 0
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What is the definition of a molecular compound?
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Two mixtures not combined , separated.<span />
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3 years ago
Please help me fast, I will give brainliest if correct!
Angelina_Jolie [31]

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The first one.

Explanation:

4 0
3 years ago
Metallic copper is formed when aluminum reacts with copper(ii) sulfate. how many grams of metallic copper can be obtained when 5
svetoff [14.1K]
Answer is: 127 <span>grams of metallic copper
</span>Chemical reaction: 2Al + 3CuSO₄ → Al₂(SO₄)₃ + 3Cu.
m(Al) = 54 g.
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m(Cu) = ?
n(Al) = 54 g ÷ 27 g/mol
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n(CuSO₄) = 319 g ÷159,5 g/mol.
n(CuSO₄) = 2 mol, limiting reagens.
from reaction n(CuSO₄) : n(Cu) = 3 : 3 (1 : 1).
n(Cu) = 2 mol.
m(Cu) = 2 mol · 63,5 g/mol.
m(Cu) = 127 g.


6 0
3 years ago
PLEASE HELP!! 30 points!!
11Alexandr11 [23.1K]

Answer:

bro sorry I haven't learnt this imma ask my friends to help you soon...

6 0
2 years ago
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