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yarga [219]
3 years ago
12

How can you improve the percent yield of copper in this lab? Check all possible strategies that will help you do so.

Chemistry
2 answers:
Paladinen [302]3 years ago
8 0

Measure reactants precisely.

Stir to help the reaction take place.

Wait patiently until the reaction completes.

Make sure to recover as much copper as possible.

Explanation:

Anything that increases the rate of this reaction will improve the yield of copper production.

The rate of reaction is usually a factor of how the concentration of reactants and products changes with time.

Some of the factors that affects the rate of a reaction are:

  • Nature of reactants
  • concentration or pressure if gases
  • temperature
  • presence of catalysts
  • degree of mixing

In this reaction:

  • to ensure we have the maximum amount of copper produced, measure out the exact/accurate amount of reactants stated
  • make sure you stir the reactants to ensure they mix and combine.
  • ensure you are not too much in haste. Wait for the reaction to go into completion.
  • recover as much copper as possible

learn more:

Chemical reaction brainly.com/question/6281756

#learnwithBrainly

FrozenT [24]3 years ago
7 0

answer: Measure reactants precisely, Stir to help the reaction take place, and Wait patiently until the reaction completes.

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How many ml of a 2.0 m nabr solution are needed to make 200.0 ml of 0.50 m nabr?
gogolik [260]

To solve this we use the equation,

 

<span> M1V1 = M2V2</span>

 

<span> where M1 is the concentration of the stock solution, V1 is the volume of the stock solution, M2 is the concentration of the new solution and V2 is its volume.</span>

 

<span>2.0 M x V1 = 0.50 M x 200 mL</span>

<span>V1 = 50 mL needed</span>

4 0
3 years ago
Aqueous solutions of isopropyl alcohol are commonly sold as rubbing alcohol. The boiling point of isopropyl alcohol is 82.4 °C.
Monica [59]

Answer:

This is due to more hydrogen bonding in ethylene glycol than it is in isopropyl alcohol

Explanation:

The boiling point of isopropyl alcohol is 82.4 °C it contains only a single OH group, hence intermolecular hydrogen bonding is solely responsible for it's boiling point, whereas Ethylene glycol (CH2OHCH2OH) contains 2-OH group and both intermolecular and intramolecular hydrogen bonding are responsible for the higher boiling point of ethylene glycol at 198 °C.

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3 years ago
What characteristic of gases makes them different from liquids or solids?
Marrrta [24]
<span>The particles are far apart from each other.</span>
5 0
3 years ago
The sun's inner core is the hottest part of the sun<br><br> true or false
harkovskaia [24]
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3 0
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Read 2 more answers
You perform a distillation to separate a mixture of propylbenzene and cyclohexane, and you obtain 2.9949 grams of cyclohexane (d
Romashka-Z-Leto [24]

Answer:

66.67%

Explanation:

From the given information:

mass of cyclohexane = 2.9949 grams

density of cyclohexane = 0.779 g/mL

Recall that:

Density = mass/volume

∴

Volume = mass/density

So, the volume of cyclohexane = 2.9949 g/ 0.779 g/mL

= 3.8445 mL

Also,

mass of propylbenzene = 1.6575 grams

density of propylbenzene = 0.862 g/mL

Volume of propylbenzene =  1.6575 g/ 0.862 g/mL

= 1.9229 mL

The volume % composition of cyclohexane from the mixture is:

= (\dfrac{v_{cyclohexane}}{v_{cyclohexane}+v_{propylbenzene}})\times 100

= (\dfrac{3.8445}{3.8445+1.9229})\times 100

= (\dfrac{3.8445}{5.7674})\times 100

= 66.67%

6 0
2 years ago
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