lable Preparatiol Of Standard affeine SOlutions Standard [Caffeine] (mg L-1 or ppm) Volume of Volume of Int. Concentration Caffeine Stock Standard mL (ppm) mL 1 0.4 0.1 0.4 3 10 0.2 0.4 4 25 0.5 0.4 50 1.0 0.4 2. LO

lable Preparatiol Of Standard affeine SOlutions Standard [Caffeine] (mg L-1 or ppm) Volume of Volume of Int. Concentration Caffeine Stock Standard mL (ppm) mL 1 0.4 0.1 0.4 3 10 0.2 0.4 4 25 0.5 0.4 50 1.0 0.4 2. LO

Introductory Chemistry For Today

8th Edition

ISBN:9781285644561

Author:Seager

Publisher:Seager

Chapter7: Solutions And Colloids

Section: Chapter Questions

Problem 7.44E

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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

please calculate the concentration in ppm (last column) for each solution

Table 1: Preparation of Standard Caffeine Solutions
Standard
[Caffeine] (mg
L-1 or ppm)
Volume of
Volume of Int.
Concentration
Caffeine Stock Standard mL
(ppm)
mL
1
0.4
2
0.1
0.4
3
10
0.2
0.4
4
25
0.5
0.4
50
1.0
0.4

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