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inysia [295]
3 years ago
5

When NH3(g) reacts with O2(g), the products of the combustion are NO(g) and H2O(g). What volume of O2(g) is required to react wi

th 3.00 mL of NH3(g)? Assume that all gases are at the same temperature and pressure.
Chemistry
1 answer:
Igoryamba3 years ago
7 0

Answer:

The volume of O_2 required is:- 3.75 mL

Explanation:

At constant pressure and temperature, the volume of the gases can be used for stoichiometric calculations in terms of moles.

Thus, For the given reaction:-

4NH_3+5O_2\rightarrow 4NO+6H_2O

4 mL of NH_3 is required to react with 5 mL of O_2

Also,

1 mL of NH_3 is required to react with 5/4 mL of O_2

So,

3.00 mL of NH_3 is required to react with \frac{5}{4}\times 3.00 mL of O_2

<u>The volume of O_2 required is:- 3.75 mL</u>

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Calculate how many moles of element Q are in 23.53 g of element Q.
pogonyaev

Answer:

0.579 moles

Explanation:

Moles = 23.53/40.64

= 0.5789 moles

7 0
2 years ago
3.65 gram of hcl is dissolved in 180 gram of water. Find the total number of molecules of hydrogen​
Morgarella [4.7K]

Answer:

Molec_{\ H_{tot}}=1.206x10^{25}molec

Explanation:

Hello.

In this case, taking into account that HCl has one molecule of hydrogen per mole of compound which weights 36.45 g/mol, we compute the number of molecules of hydrogen in hydrochloric acid by considering the given mass and the Avogadro's number:

molec_{\ H}=3.65gHCl*\frac{1molHCl}{36.45gHCl} *\frac{1molH}{1molHCl}*\frac{6.022x10^{23}molec_\ H}{1molH}  =6.03x10^{22}molec

Now, from the 180 g of water, we see two hydrogen molecules per molecule of water, thus, by also using the Avogadro's number we compute the molecules of hydrogen in water:

molec_{\ H}=180gH_2O*\frac{1molH_2O}{18gH_2O} *\frac{2molH}{1molH_2O}*\frac{6.022x10^{23}molec_\ H}{1molH}  =1.20x10^{25}molec

Thus, the total number of molecules turns out:

Molec_{\ H_{tot}}=6.03x10^{22}+1.20x10^{25}\\\\Molec_{\ H_{tot}}=1.206x10^{25}molec

Regards.

6 0
3 years ago
Why are caves usually found in limestone-rich regions?
aliya0001 [1]
Cause limestone breaks down dirt and stone

7 0
3 years ago
Which one of the following species is diamagnetic: a. F b. Zn2+ C. Cu2+ d. Ca+​
diamong [38]

Answer:

The correct answer to this question is C

Explanation:

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2 years ago
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Answer:

Matter always takes space (or has volume).

7 0
3 years ago
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