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Elena L [17]
3 years ago
5

What is the molarity of a solution that has .8 mols of solute in .5 L of water?

Chemistry
2 answers:
leva [86]3 years ago
8 0
The answer is:
1.6 meters
zloy xaker [14]3 years ago
5 0

Answer:

1.6M

Explanation:

molarity = number of moles/number of Liters = 0.8 mol/0.5 L= 1.6 mol/L or 1.6M

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Carbordum is silicon carbide SiC a very hard material used as an abrasive on sand paper and in other applications. it is prepare
AleksandrR [38]

Answer:

4.5 kilograms of silicon dioxide is required to produce 3.00 kg of SiC.

Explanation:

The balanced equation for the reaction between silicon dioxide and carbon at high temperature is given as:

SiO_2+3C\rightarrow SiC+2CO

1 mole silicon dioxide reacts with 3 moles of carbon to give 1 moles of silicon carbide and 2 moles of carbon monoxide.

Mass of SiC = 3.00kg = 3000.00 g

1 kg = 1000 g

Molecular mass of SiC = 40 g/mol

Moles of SiC = \frac{3000.00 g}{40 g/mol}= 75 mol

According to reaction, 1 mole of SiC is produced from 1 mole of silicon dioxide.

Then 75 moles of SiC will be produce from:

\frac{1}{1}\times 75 mol=75 mol of silicon dioxide.

mass of 75 moles of silicon dioxde:

75 mol\times 60 g/mol=4500 g=4.5 kg

4.5 kilograms of silicon dioxide is required to produce 3.00 kg of SiC.

3 0
3 years ago
How much time does it take for light from the center of the galaxy to reach Earth?
Ede4ka [16]

Answer:

Light moves at 300,000 kilometers per second, divide these and you get 500 seconds, or 8 minutes and 20 seconds this is an average number.

Explanation:

3 0
3 years ago
Need help read the comment below.
BartSMP [9]

Answer:

Protective fruit

Explanation:

Angiosperm seeds grow in the middle of flower's ovaries and are covered by a defensive fruit.

8 0
3 years ago
What are blocks of time in the geological time scale called?
Katena32 [7]
B is the answer , i got you
7 0
3 years ago
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Convert 22 grams of copper Il chloride (Cucl2) to moles. <br>with work please ​
Fittoniya [83]
Hope this helps!

https://youtu.be/MT5tKijKZwQ
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3 years ago
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