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PSYCHO15rus [73]
2 years ago
9

This is the chemical formula for nickel tetracarbonyl (a powerfully poisonous liquid used in nickel refining): Ni(CO4)

Chemistry
2 answers:
drek231 [11]2 years ago
7 0

Answer:

9.6 moles

Explanation:

The compound; Ni(CO4)

The ratio of the elements is given as;

Ni : C : O

1   :  1  : 4

The ratio of Nickel is particularly;

Ni : C

1    :  1

If there are 9.6 moles of Nickel present in the sample, it means there are also 9.6 moles of Carbon in the sample.

hjlf2 years ago
4 0

Complete question:

This is the chemical formula for nickel tetracarbonyl (a powerfully poisonous liquid used in nickel refining): Ni(CO)4 A chemical engineer has determined by measurements that there are 9.6 moles of nickel in a sample of nickel tetracarbonyl. How many moles of carbon are in  the sample? Round your answer to 2 significant digits.

Answer:

number of moles of carbon in the compound = 9.6 × 4 = 38.40 moles ≈ 38 moles

Explanation:

The molecular formula of the compound, tetracarbonyl is represented as  Ni(CO)4.  From the chemical formula of the actual compound contains 1 mole of nickel, 4 moles of carbon and 4 moles of oxygen.

The ratio of the moles can be represented as:

Ni      C      O

1     :   4   :   4

1 mole of Nickel containing  mass of 58.6934 g.

4 moles of carbon containing  mass of 4(12 g) = 48 g

4 moles of oxygen containing mass of 4(16 g) =   64 g

since 1 mole of nickel  contains 4 moles of carbon in the compound

         9.6 moles of nickel will contain ? moles of carbon

cross multiply

number of moles of carbon in the compound = 9.6 × 4 = 38.40 moles

2 significant figure = 38 moles

         

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Answer:

The only statement about monosaccharide structure which is true is b. (Monosaccharides can be classified according to the spatial arrangement of their atoms)

Explanation:

Monosaccharides are simple sugars that are classified according to the amount of carbon atoms and based on these numbers, we can call them trioses, pentoses and hexoses. They are molecules with aldehyde (aldose) or centone (ketose) groups that have more than one alcohol function, but which do not differ in their position (OH). They do not contain N, since their general formula is Cx (H2O) x. A 6-carbon monosaccharide is called hexose, since the pentose only has 5

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2 years ago
5. Gabi has plans with her friends to go to a concert on her birthday in 4 days. She is so excited that she wants to know how ma
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Answer:

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Explanation:

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On the graph, which shows the potential energy curve of two N atoms, carefully sketch a curve that corresponds to the potential
ki77a [65]

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3 0
2 years ago
At a given temperature, you have a mixture of benzene (vapor pressure of pure benzene = 745 torr) and toluene (vapor pressure of
swat32
Ideal solutions obey Raoult's law, which states that:

P_i = x_i*(P_pure)_i

where
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x_i is the mole fraction of component i in the solution
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In this case,

P_benzene = 0.59 * 745 torr = 439.6 torr
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The total vapor pressure above the solution is the sum of the vapor pressures of the individual components:

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Assuming the gas phase also behaves ideally, the partial pressure of each gas in the vapor phase is proportional to its molar concentration, so the mole fraction of toluene in the vapor phase is:

118.9 torr/558.5 torr = 0.213
8 0
2 years ago
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