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3 years ago

What is the correct interpretation of the mole ratios for the elements in

Chemistry

2 answers:

iogann1982 [59]3 years ago

6 0

Answer:

the ratio would be 1:2:1

Explanation:

since it is C6 H12 O6

12 is double of 6 so it would be 2

and 6 is considered 1

Artemon [7]3 years ago

3 0

Answer:

6 moles C atoms: 12 moles H atoms: 6 moles O atoms

Explanation:

The simplified ratio is 1:2:1 and it does not include any specific charges, therefore, they're all atoms.

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What is the percentage of nitrogen, by mass, in calcium nitrate?.

SCORPION-xisa [38]

Answer:

Nitrogen = 17.07%

Explanation:

We are asked to calculate the percentage by mass of nitrogen in Ca(NO3)2.

The molar mass of calcium nitrate is 164,088 g/mol.

In this 164.088 g/mol there are 2 nitrogen atoms.

Molar mass of nitrogen = 14,0067 g/mol

% Nitrogen = molar mass of N/total molar mass of the compound

% Nitrogen =[(2 x 14.0067)/164.088]*100

% Nitrogen = 17.07%

Please mark me as brainliest if you found this answer helpful

7 0

2 years ago

A balloon filled with helium gas occupies 2.50 L at 25°C and 1.00 atm. When released, it rises to an altitude where the temperat

stira [4]

Answer:

8,19 L

Explanation:

The combined gas law is a equation that can be used when the initial and final conditions -pressure,volume,amount of moles,temperature-, of a gas change during a process. It can be written:

$\frac{P1V1}{n1T1}=\frac{P2V2}{n2T2}$

If the amount of the gas remains constant, then n1=n2 and we have:

$\frac{P1V1}{T1}=\frac{P2V2}{T2}$

For the problem we have:

Note: When working with gases is important to use absolute temperature values (°K, °K=°C+273,15):

P1=1 atm, V1=2,5L, T1=25+273,15=298,15°K

P2=0,3 atm, V2=?, T2=20+273,15=293,15°K

$V2=\frac{P1V1T2}{T1P2}=\frac{1atm*2,5L*293,15K}{298,15K*0,3atm}=8,19L$

The new volume of the balloon is 8,19 L.

5 0

3 years ago

Which choice is not a property of an acid?

Lelu [443]

Answer:

it's going to be D

Explanation:

3 0

3 years ago

Which would be attracted most to a magnet?

Debora [2.8K]

Either iron or metal

8 0

3 years ago

If i have an 86 and i don’t do a 50 point assignment, what will my grade be in the class?

nexus9112 [7]

Well you are at a 86% so this is considered a "B" grade on an average grade scale. If you take 50 points we would need to know the Total point you could have got in that class to be able to see how much a percent was the assignment work and then take that percentage of the assignment and subtract it from the 86% to see where on the scale you would fall in after the assignment points were taken off. Hope this helps :)

7 0

3 years ago