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Natasha2012 [34]
3 years ago
11

How many carbons are present in the hydrocarbon 3-ethyl-2,3,4-trimethylpentane

Chemistry
1 answer:
fiasKO [112]3 years ago
4 0
I would say there is 10 (2 in the ethyl group, 3 in the three methyl groups and 5 in the pent chain)
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PLEASE HELP FOR THIS ASSIGNMENT
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<h2>Steps:</h2>
  • Remember that Density = mass/volume, or D = m/v

So firstly, we have to find the volume of the rock. To do this, we need to subtract the volume of water A from the volume of the water B. In this case:

  • Water A = 30 mL
  • Water B = 40 mL
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<u>The volume of the rock is 10 mL.</u>

Now that we have the volume, we can plug that and the density of the rock into the density equation to solve for the mass.

3.678=\frac{m}{10}

For this, multiply both sides by 10:

36.78=m

<h2>Answer:</h2>

<u>Rounding to the tenths place, the mass of the rock is 36.8 g, or C.</u>

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