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harkovskaia [24]
4 years ago
6

Chandra wants to know how many moles are contained in 150.0g CCl4 what quantity of CCl4 should she use to make this conversion

Chemistry
2 answers:
DanielleElmas [232]4 years ago
7 0
Hey there!:

atomic mass :

C = 12.01070 amu

Cl = 35.4530 amu

Molar mass:

CCl4 = ( 1 * 12.01070 ) + ( 35.4530 *4 ) = 153.8227 g/mol

Therefore:

n = mass of solute / molar mass

n = 150.0 / 153.8227

n = 0.975 moles

hope this helps!
Orlov [11]4 years ago
5 0

Answer:

Molar mass.

Explanation:

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1 mole tungsten ------------- 6.02 x 10²³ atoms
0.0845 moles ---------------- ( atoms tungsten )

atoms tungsten = 0.0845 x ( 6.02 x 10²³) / 1

atoms tungsten = 5.08 x 10²² / 1

= 5.08 x 10²² atoms of tungsten

hope this helps!
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4 years ago
Gaseous methane (CH4) will react with gaseous oxygen (O2) to produce gaseous carbon dioxide (CO) and gaseous water (H2O) . Suppo
Leto [7]

Answer:

0 g.

Explanation:

Hello,

In this case, since the reaction between methane and oxygen is:

CH_4+2O_2\rightarrow CO_2+2H_2O

If 0.963 g of methane react with 7.5 g of oxygen the first step is to identify the limiting reactant for which we compute the available moles of methane and the moles of methane consumed by the 7.5 g of oxygen:

n_{CH_4}=0.963gCH_4*\frac{1molCH_4}{16gCH_4}=0.0602molCH_4\\ \\n_{CH_4}^{consumed}=7.5gO_2*\frac{1molO_2}{32gO_2}*\frac{1molCH_4}{2molO_2} =0.117molCH_4

Thus, since oxygen theoretically consumes more methane than the available, we conclude the methane is the limiting reactant, for which it will be completely consumed, therefore, no remaining methane will be left over.

left\ over=0g

Regards.

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3 years ago
One benefit of nuclear fission reactions is
Simora [160]
The correct answer is option 4. One benefit of nuclear fission reactions is the production of energy. Fission reaction is one type of nuclear reaction. This type occurs when a nuclei is being divided. <span>Fission reaction takes place in any of the heavy nuclei after capture of a neutron. </span>
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How do spores help the survival of spore-bearing plant?
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Which is the most likely to be reduced?
NISA [10]

Answer : The correct option is, Zn^{2+}

Explanation :

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Or we can say that, oxidation reaction occurs when a reactant losses electrons in the reaction.

  • Reduction reaction : It is defined as the reaction in which a substance gains electrons. That means, the gain of electrons takes place.

Or we can say that, reduction reaction occurs when a reactant gains electrons in the reaction.

According to the electrochemical series, Zn^{2+} most likely to be reduced because

Hence, the ion most likely to be reduced is Zn^{2+}.

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3 years ago
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