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Dafna11 [192]
3 years ago
11

If 34.22 grams of C2H4 reacts with excess oxygen, how many mLof carbon dioxide will form, at 21°C and 99.1kPa?

Chemistry
1 answer:
Kisachek [45]3 years ago
4 0
You can find the ideal gas law (the formula) constants (r) on the internet :)

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What are the missing coefficients for the chemical equation <br> [ ] Ca + [ ] O2 → [ ] CaO
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Answer:

{ \sf{[ 2] Ca_{(s)} + [1 ] O_{2(g)} → [ 2] CaO _{(s)}}}

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PLEASE HURRY! What is the name of this alkane?
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Answer:

C. 1-ethyl, 3-methylcyclohexane

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Explanation:

The 1-ethyl is because you start numbering from the longest branch, towards the next closest branch. Prefix "eth-" means two, there are 2 carbons in the longest branch. 3-methyl is because the next branch is at number 3, and prefix "meth-" means 1, there is 1 carbon in that chain. "Cyclo" in cyclohexane means the skeletal model is shaped like a ring, and the "hexane" means there are 6 carbons in the ring. Prefix "hex" means 6.

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If the caffeine concentration in a particular brand of soda is 3.55 mg/oz, drinking how many cans of soda would be lethal? Assum
monitta

Answer:

The answer to your question is: 234.7 cans

Explanation:

data

caffeine concentration = 3.55 mg/oz

10.0 g of caffeine is lethal

there are 12 oz of caffeine in a can

Then

                    3.55 mg ----------------- 1 oz

                      x    mg  -----------------12 oz (in a can)

x = 42.6 mg of caffeine in a can

Convert it to grams 42,6 mg = 0.0426 g of caffeine in a can

Finally

            0.0426 g of caffeine ------------------  1 can

            10           g of caffeine -----------------    x

x = 10 x 1/0.0436 = 234.7 cans

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3 years ago
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