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ipn [44]
3 years ago
15

3. How many grams of CoCl, in 1/2 Liter would be used to make a 1.0 molar solution?

Chemistry
1 answer:
Paha777 [63]3 years ago
3 0

Answer:

47 grams CoCl needed.

Explanation:

1 mole weight of CoCl in 1 Liter solution => 1.0 molar solution

∴ 1/2 mole weight of CoCl in 1/2 Liter solution => 1.0 molar solution.

1/2 mole weight of CoCl = 1/2(94 g/mole) = 47 grams CoCl needed.  

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vanillin is a flavoring agent in vanilla it has a mass percent composition of 61.15% c,5.3%H,31.55% o determine the empirical fo
Nutka1998 [239]

The empirical and molecular formulas will be  C_5H_5O_2 and  C_1_0H_1_0O_4 respectively.

<h3>Empirical and molecular formula</h3>

The compound contains C, H, and O.

C = 61.15/12 = 5.0958

H = 5.3/1 = 5.3

O = 31.55/16 = 1.9719

Divide by the smallest

C = 2.6

H = 2.7

O = 1

Thus, the empirical formula is C_5H_5O_2

Empirical formula mass = (12x5) + (1x5) + 16x2 = 97

n = 152.15/97 = 2

The molecular formula is C_1_0H_1_0O_4

More on molecular and empirical formulas can be found here: brainly.com/question/14425592

#SPJ1

6 0
2 years ago
A mixture of two miscible liquids with a widely different boiling point is distilled. The temperature of distilled liquid is obs
svetoff [14.1K]

Answer:

The difference in temperature is significant means that the lower-boiling liquid finishes distilling at a temperature that is too low for the higher-boiling liquid to be in vapor form yet.

Explanation:

The temperature will rise as the vapor of lower-boiling liquid rushes into the distillation head. However once the lower-boiling liquid is done distilling, there is a temperature drop because while the lower temperature liquid is done distilling, the temperature is still too low for the higher-boiling liquid to be rushing in as a vapour, so the temperature drops.

8 0
3 years ago
How can a chemical reaction speed up? Pack in more of the reactant to increase the
spayn [35]

Answer:

A.

Explanation:

6 0
3 years ago
Read 2 more answers
What powers explosions and fire
Artyom0805 [142]
Almost always oxidation,
the speed of the reaction is the big difference between fire and explosions
<span>(and slower yet - the "respiration" reactions that keep you alive).</span>
5 0
3 years ago
For the reaction below, identify the type of reaction and determine the coefficient for Ag after balancing the reaction
tatyana61 [14]

Answer:

single displacement reaction

Explanation:

coefficient if Ag is 2

after it is balanced

3 0
3 years ago
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