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mario62 [17]
3 years ago
13

Please help with this question:)

Chemistry
2 answers:
Crazy boy [7]3 years ago
5 0
the answer might be C.2:1
netineya [11]3 years ago
5 0
It’s 2:1

Hope this helps (:
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HELPP
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Answer:

In the previous section, we discussed the relationship between the bulk mass of a substance and the number of atoms or molecules it contains (moles). Given the chemical formula of the substance, we were able to determine the amount of the substance (moles) from its mass, and vice versa. But what if the chemical formula of a substance is unknown? In this section, we will explore how to apply these very same principles in order to derive the chemical formulas of unknown substances from experimental mass measurements.

Explanation:

tally. The results of these measurements permit the calculation of the compound’s percent composition, defined as the percentage by mass of each element in the compound. For example, consider a gaseous compound composed solely of carbon and hydrogen. The percent composition of this compound could be represented as follows:

\displaystyle \%\text{H}=\frac{\text{mass H}}{\text{mass compound}}\times 100\%%H=

mass compound

mass H

×100%

\displaystyle \%\text{C}=\frac{\text{mass C}}{\text{mass compound}}\times 100\%%C=

mass compound

mass C

×100%

If analysis of a 10.0-g sample of this gas showed it to contain 2.5 g H and 7.5 g C, the percent composition would be calculated to be 25% H and 75% C:

\displaystyle \%\text{H}=\frac{2.5\text{g H}}{10.0\text{g compound}}\times 100\%=25\%%H=

10.0g compound

2.5g H

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\displaystyle \%\text{C}=\frac{7.5\text{g C}}{10.0\text{g compound}}\times 100\%=75\%%C=

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Determine the molarity of 4.67 moles of Li2SO3 dissolved to make 2.04 liters of solution
PSYCHO15rus [73]
You take the moles divided by the liters to get the molarity.
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A period of the life cycle during which positive nitrogen balance is most likely to occur is:__________
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The period of the life cycle during which positive nitrogen balance is most likely to occur is childhood.

<h3>What is nitrogen balance?</h3>

The term nitrogen balance refers to the fact that there is a balance between the intake and the loss of nitrogen. The intake of nitrogen occurs when a person takes in food that contain proteins which are a rich source of nitrogen in the body and helps in the process of the build up of the cells in the body.

The period of the life cycle during which positive nitrogen balance is most likely to occur is childhood.

Learn more about nitrogen balance:brainly.com/question/14570903

#SPJ1

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