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DiKsa [7]
2 years ago
7

How many moles is 130g of cocl2

Chemistry
1 answer:
Oduvanchick [21]2 years ago
8 0

Answer:

1.3142 mol CoCl2

Explanation:

Well, to answer this we need to find out how many grams are in a single mole of CoCl2. Two find that we need to get the molar mass of CoCl2

Co = 28.0101 g Co per mole

Cl = 35.453 * g Cl per mole

28.0101 + 2 * 35.453 = 98.9161 g CoCl2 per mole

Now, we divide:

130/98.9161 = 1.3142 mol CoCl2

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antoniya [11.8K]

Answer:

- 7.48

Explanation:

Given:

Concentration of the sugar solution, C = 0.3 M

Temperature, T = 27° C = 273 + 27 = 300 K

Now,

The solute potential is given as:

solute potential = - iCRT

where,

i is the number of particles the particular molecule will make in water

i = 1 for sugar

R is the universal gas constant = 0.0831 liter bar/mole-K

on substituting the respective values, we get

solute potential = - 1 × 0.3 × 0.0831 × 300

or

The solute potential = - 7.479 ≈ - 7.48

8 0
2 years ago
Under which conditions will sugar most likely dissolve fastest in a cup of water? A. a sugar cube with stirring at 5oC B. a suga
OverLord2011 [107]
I believe the answer is sugar crystals with stirring at 15 degrees Celsius. 
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5 0
2 years ago
Read 2 more answers
Suppose there is a gaseous mixture of nitrogen and oxygen. If the total pressure of the mixture is 470 mmHg , and the partial pr
ch4aika [34]

Answer:

190 mmHg

Explanation:

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The total pressure of the mixture is 470 mmHg , and the partial pressure of nitrogen is 280 mmHg. Then,

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pO₂ = 190 mmHg

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2 years ago
An object was measured by a worker as 14.6 cm long, however, the manufacturer specifications list the length of the object at 14
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Answer:

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14.6            .2

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(Above is proportions I used to get the answer)

x = 0.73% which is the answer.

4 0
2 years ago
which factors are needed to determine the amount of heat absorbed by an aluminum cube after it is warmed? check all that apply
Deffense [45]

Answer:

Explanation:

final temperature of the cube

initial temperature of the cube

mass of the cube

specific heat of aluminum

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