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belka [17]
3 years ago
8

Urea, CO(NH2)2, is manufactured on a large scale for use in producing ... is manufactured on a large scale for use in producing

urea-formaldehyde plastics and as a fertilizer. What is the maximum mass of urea that can be manufactured from the CO2 produced by combustion of 1.00 x 104 grams of CO2?

Chemistry
1 answer:
zimovet [89]3 years ago
5 0

,........,..,.,......... :)

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Why is it important for all of your glassware to be clean and dry before performing a titration
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Explanation:

It is necessary that the glassware which we use during titration needs to be clean and dry before use because otherwise the remaining reagents will get mixed up with the solutions.

As a result, this will lead to a change in analysis results.

Hence, an error will occur in the resulting values.

Also, when not cleaned properly the any other substance remaining in the glassware might react with the solution leading to a change in the solution.

In that case also, error will occur.

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Investigation B, Step 2

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The <em>colour change</em> is a good indication of a <em>chemical change</em>. The sugar molecules were most likely changing into something else.

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