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PROBEM SOLVING. Solve the following problem. III. Sample problem 1

Jennie was tasked to identify the percent of volume in an ethyl alcohol. What is the percent by volume of ethyl alcohol in a 250 mL bottle of alcohol solution that contains 50 mL of ethyl alcohol?
A, Identify the solute in the given problem._____


Percent by Volume = Volume of solute x 100% =
Volume of solution

Percent by Volume =​


Sagot :

Answer:

Answer:

The Volume of a 70% ethyl alcohol solution in a 250 ml to fight COVID-19 is 28ml.

-I'll use quantitative methods of expressing concentrations.

Explanation:

Given:

Volume of solute = 70%

Volume of solution = 250 ml

% by Volume = ?

(% V/V)

Solution:

volume of solute

percent by volume= ______________×100

volume of solution

= 70.0%

________×100

250 ml

= 0.28 × 100

= 28 %

PS. I'm deeply sorry if there's mistakes in this answer

Have a good day:)

Explanation: