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saul85 [17]
3 years ago
7

Which is a higher concentration, 10^-9M OR 10^-8M? Explain.

Chemistry
1 answer:
timurjin [86]3 years ago
8 0

10^-8 is 10x more Molar than 10^-9, because of the exponents so it’d be 10x more concentrated than 10^-9. The answer is 10^-8.

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Consider the following reaction.Cr2O3(s) + 3CCl4(l) 2CrCl3(s) + 3COCl2(g). When the green solid is mixed with the colorless liq
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Answer:

The answer to your question is: letter B

Explanation:

Reaction

                 Cr2O3(s)   +   3CCl4(l)   ⇒  2CrCl3(s)  +   3COCl2(g)

From the information given and the reaction, we can conclude that:

Green solid = Cr2O3 (s)     "s" means solid

Colorless liquid = CCl4 (l)    "l" means liquid   and is the other reactant

Purple solid = CrCl3(s)        CrCl3 is purple and "s" solid

Then, as a green specks remains it means that the excess reactant is Cr2O3, so, CCl4 is the limiting reactant.

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The answer is b I think
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Just the number 2 to get the cofficients
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Which of the following arrangements of the visible colors of light is in the correct order of increasing energy?
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If he was 30.8% too low, it means that he was at 69.2% of the boiling point needed. So 50o C is 69.2% of total.

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So: 50/30.8=1.623
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