rand name of soft drink oncentration of undiluted standard phosphate solution, M 3x/03 M Solution Number %T Absorbance 1 15%0 1.6 2 3% 1.5 Phosphate Concentration, mol/L 6.00 x 10-5 9.00x 10-5 3 1% 1. S 4 0.5% 1.20 x 10-5 1.50x10-5 31% 0.510 * 2.3 x 10-5 oft drink (dilute) concentration from Beer's law plot. See Figure 2. culations a. Show your setup for the calculation of the concentration of the phosphate ion in Solution 1. M₂ = M₁V₁ Vz 03.00x 103 M) C0.002002) =6.00×105 0.1000 L b. Show your calculation for the concentration of phosphoric acid in the original (undiluted) soft drink. Hint: Use the formula M,V₁ = M2V2 to solve for M₁. Concentration of phosphoric acid in original (undiluted) soft drink, M
rand name of soft drink oncentration of undiluted standard phosphate solution, M 3x/03 M Solution Number %T Absorbance 1 15%0 1.6 2 3% 1.5 Phosphate Concentration, mol/L 6.00 x 10-5 9.00x 10-5 3 1% 1. S 4 0.5% 1.20 x 10-5 1.50x10-5 31% 0.510 * 2.3 x 10-5 oft drink (dilute) concentration from Beer's law plot. See Figure 2. culations a. Show your setup for the calculation of the concentration of the phosphate ion in Solution 1. M₂ = M₁V₁ Vz 03.00x 103 M) C0.002002) =6.00×105 0.1000 L b. Show your calculation for the concentration of phosphoric acid in the original (undiluted) soft drink. Hint: Use the formula M,V₁ = M2V2 to solve for M₁. Concentration of phosphoric acid in original (undiluted) soft drink, M
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Question
Just needing help on part b please.
Transcribed Image Text:12. Use the dilution equation:
M₁V₁ = M₂V₂
to calculate the concentration of the phosphate ion in the solutions you used for the Beer's
law plot. For example, if a 2.00 mL sample (V₁) of 3.00 x 10-3 M (M₁) standard phosphate
solution is diluted to 100.00 mL (V2) in a volumetric flask, the concentration of the re-
sulting solution would be given by the following:
M₁V, (3.00×10-³M)(0.00200 L)
M₁ =
V₂
0.1000 L
= 6.00 × 10-5M *
Transcribed Image Text:Brand name of soft drink analyzed
Concentration of undiluted standard phosphate solution, M
Pepsi
M 33x/0-3
M
Solution
Number
%T
Absorbance
1
15%
1.6
2
3%
1.5
3
1%
1. S
0.5%
1
31%
0.510
4
Soft drink (dilute)
*Concentration from Beer's law plot. See Figure 2.
Calculations
*
Phosphate Concentration,
mol/L
6.00 x 10-5
9.00 x 10-5
1.20 x 10-5
1·50 × 10-5
1.50×10
2.3 x 10-5
Colo
3107
a. Show your setup for the calculation of the concentration of the phosphate ion in Solution 1.
M₂ = M, V₁
V₂
(3.00 x 10-3 M) (0.002002)
0.1000 L
1
= 6.00×105
b. Show your calculation for the concentration of phosphoric acid in the original (undiluted)
soft drink. Hint: Use the formula M₁V₁ = M₂V₂ to solve for M₁.
2
Concentration of phosphoric acid in original (undiluted) soft drink, M
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