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aleksandrvk [35]
2 years ago
13

How many different elements are present in c6h12o6

Chemistry
1 answer:
Margarita [4]2 years ago
5 0

Answer:

3 different elements are present in the compound.

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7. Lawrencium has a half-life of 3.00 minutes. I started with a 100.0 g sample. After 45.0 minutes how
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N=3.05*10^-3g

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How many milliliters of a 0.250 MNaOHMNaOH solution are needed to completely react with 500. gg of glyceryl tripalmitoleate (tri
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7.48X10^3~mL

Explanation:

For this question we have:

-) A solution NaOH 0.25 M

-) 500 g of glyceryl tripalmitoleate (tripalmitolein)

We can start with the <u>reaction</u> between NaOH and tripalmitolein. NaOH is a base and tripalmitolein is a triglyceride, therefore we will have a <u>saponification reaction</u>. The products of this reaction are <u>glycerol and (E)-hexadec-9-enoate</u>.

Now, with the reaction in mind, we can calculate the <u>moles of NaOH</u> that we need if we use the molar ratio between NaOH and tripalmitolein (3:1) and the molar mass of tripalmitolein (801.3 g/mol). So:

500~g~tripalmitolein\frac{1~mol~tripalmitolein}{801.3~g~tripalmitolein}\frac{3~mol~NaOH}{1~mol~tripalmitolein}=1.87~mol~NaOH

With the moles of NaOH we can <u>calculate the volume</u> (in litters) if we use the molarity equation and the Molarity value:

M=\frac{mol}{L}

0.25~M=\frac{1.87~mol~NaOH}{L}

L=\frac{1.87~mol~NaOH}{0.25~M}

L=7.48

Now we can do the <u>conversion</u> to mL:

7.48~L~\frac{1000~mL}{1~L}=~7.48X10^3~mL

I hope it helps!

3 0
3 years ago
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