What is the percent by volume of a solution formed by adding 15 L of acetone to 28 L of water?

34.88 %

Explanation:

To solve this question, we are going to assume that the acetone has 100% solution.

We know that 15 L of acetone was added to 28 L of water

We need to determine the percent by volume of a solution as

15 L of acetone/ (15L of acetone +28L of water)

= 15L/43L

=0.3488

= (0.3488×100%)

= 34.88 %

Hence, the percent by volume of a solution formed is 34.88

ans.

dna fingerprinting is defined as a process that determines the dna characteristics of an individual. these dna characteristics are unique among individuals as their fingerprints, so it is known as dna fingerprinting.

steps of dna fingerprinting includes extraction of dna from sample, amplification of dna, restriction digestion of amplified dna, and then analysis of dna by gel electrophoresis, respectively.

thus, the next step performed by the scientist is 'to cut the amplified dna (obtained by polymerase chain reaction) by restriction enzymes that cleave the dna into fragments and their analysis.'