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3 years ago

Which is the least precise of these devices for measuring liquid volumes? 1. graduated cylinder 2. pipet 3. beaker 4. buret?

Chemistry

2 answers:

Goshia [24]3 years ago

8 0

Answer : The correct option is, (3) Beaker.

Explanation :

Graduated cylinder : It is a measuring cylinder that is used to measure the volume of a liquid. It has a narrow cylindrical shape. The marked line drawn on the graduated cylinder shows the amount of liquid that has been measured.

Pipet : It is a type of laboratory equipment that is used to measure the volume of a liquid. It is small glass tube and the marked line drawn on the pipet. It is used to accurately measure and transfer of volume of liquid from one container to another.

Buret : It is a type of laboratory tool that is also used for measuring the volume of liquid. It is a glass tube with tap present at one end for transferring the liquid. It is also used to accurately measure and transfer of liquid.

Beaker : It is a type of laboratory equipment that has cylindrical shape and it is used for the mixing, stirring, and heating of chemicals.

As per question, we conclude that the beaker is least precise than other devices because in beaker the marking lines are not accurate. Thus, it cannot be used to measure volume to precision.

Hence, the correct option is, (3) Beaker.

muminat3 years ago

6 0

3. beaker, beakers are made to just give you a rough estimate of volume all other ones are very precise.

Hope that helps :)

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xxMikexx [17]

Answer:

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In the attached file are the two reactions of dienes production.

Explanation:

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3 years ago

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Naddik [55]

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3 years ago

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nignag [31]

Your balanced equation for this reaction is:

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3 years ago

The greatest amount of energy released per gram of reactants occurs during a(1) redox reaction

masya89 [10]

Answer : The correct option is, (2) Fission reaction.

Explanation :

Fission reaction : This is a type of nuclear reaction in which the splitting of bigger nuclei into two smaller nuclei takes place. During this process, the large amount of energy is released.

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Substitution reaction : In this reaction, one functional group is replaced by the another functional group in a chemical compound.

Neutralization reaction : In this reaction, the acid and base react to give water and a salt.

Redox reaction, substitution reaction and neutralization reaction are the chemical reactions in which the heat releases when the chemical bonds are breaking and forming.

Therefore, the greatest amount of energy released per gram of reactants occurs during the fission reaction.

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3 years ago

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