Choose the correct answer on EACH questions. Show solution for the following: 53. What weight of water must be added to 50lb of a 45% brine solution to yield a 20% solution?b. 55.1 lbs.a. 61.3 lbs.c. 62.5lbsd. 37.5 lbs.54. The tens digit of a certain two digit number exceeds the units digit by 4 and 4 less than thrice the units digit.Find the two digit number.a. 37b. 84c. 58d. 9955. The tens digit of a certain two digit number is 1/3 of the units digit. When the digits are reversed, the newnumbers exceeds twice the original number by 1 more than the sum of the digits. Find the original number.a. 26b. 39c. 13d. 2856. The denominator of a certain fraction is three more than twice the numerator. If 7 is added to both terms ofthe fraction, the resulting fraction is 3/5. Find the original fraction.a. 8/5b. 13/5c. 5/13d. 3/557. A man left their office at past 3 o'clock for merienda. After 20 minutes on his return, he noticed that theminute hand is ahead of the hour hand exactly by as much as it was behind when he left. At what time didhe leave?a. 3:07.36b. 3:08.36c. 3:06.16d. 3:06.36

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What weight of water must be added to 50lb of a 45% brine solution to yield a 20% solution? b. 55.1 lbs d. 37.5 lbs a. 61.3 lbs c. 62.5lbs

Introductory Chemistry: An Active Learning Approach

6th Edition

ISBN:9781305079250

Author:Mark S. Cracolice, Ed Peters

Publisher:Mark S. Cracolice, Ed Peters

Chapter16: Solutions

Section: Chapter Questions

Problem 14E

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Concept explainers

Solutions

Solutions can be considered as homogeneous mixtures which contain two or more than two chemical substances. The chemical substance which is the greater part is defined as solvent. And the chemical substance that is dissolved in a solvent is referred to as solute. Solution chemistry plays an important role in chemistry since it supports many commercial applications of solutions.

Question

Choose the correct answer on EACH questions. Show solution for the following:

53. What weight of water must be added to 50lb of a 45% brine solution to yield a 20% solution?
b. 55.1 lbs.
a. 61.3 lbs.
c. 62.5lbs
d. 37.5 lbs.
54. The tens digit of a certain two digit number exceeds the units digit by 4 and 4 less than thrice the units digit.
Find the two digit number.
a. 37
b. 84
c. 58
d. 99
55. The tens digit of a certain two digit number is 1/3 of the units digit. When the digits are reversed, the new
numbers exceeds twice the original number by 1 more than the sum of the digits. Find the original number.
a. 26
b. 39
c. 13
d. 28
56. The denominator of a certain fraction is three more than twice the numerator. If 7 is added to both terms of
the fraction, the resulting fraction is 3/5. Find the original fraction.
a. 8/5
b. 13/5
c. 5/13
d. 3/5
57. A man left their office at past 3 o'clock for merienda. After 20 minutes on his return, he noticed that the
minute hand is ahead of the hour hand exactly by as much as it was behind when he left. At what time did
he leave?
a. 3:07.36
b. 3:08.36
c. 3:06.16
d. 3:06.36

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