CALCULATIONS Set up each problem completely and SHOW UNITS. Cancel the units when you do the calculations. Use the correct number of significant figures in your answers. 1. Determine the ppm of Phosphate in your water sample.
CALCULATIONS Set up each problem completely and SHOW UNITS. Cancel the units when you do the calculations. Use the correct number of significant figures in your answers. 1. Determine the ppm of Phosphate in your water sample.
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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States of Matter
The substance that constitutes everything in the universe is known as matter. Matter comprises atoms which in turn are composed of electrons, protons, and neutrons. Different atoms combine together to give rise to molecules that act as a foundation for all kinds of substances. There are five states of matter based on their energies of attraction, namely solid, liquid, gases, plasma, and BEC (Bose-Einstein condensates).
Chemical Reactions and Equations
When a chemical species is transformed into another chemical species it is said to have undergone a chemical reaction. It consists of breaking existing bonds and forming new bonds by changing the position of electrons. These reactions are best explained using a chemical equation.
Question
The mass of KH2PO4=0.0900g
- the mass is mixed with 250 mL of water
Transcribed Image Text:A-STANDARD PHOSPHATE SOLUTION:
Standard solution
1
3.
4
6
Conc of PO4 (ppm)
O-00
0.4
0.8
\-0
O.2
0-6
Absorbance
0-00
00 33
O.069
O-107
0.134
O.155
B - UNKN OWN WATER SAMPLE:
Unknown Water Sample Number:
Absorbance reading:_
0.083
Calculated Concentration (PO4):
CALCULATIONS
Set up each problem completely and SHOW UNITS. Cancel the units when you do the
calculations. Use the correct number of significant figures in your answers.
1.
Determine the ppm of Phosphate in your water sample.
Julim by
Inc
Transcribed Image Text:3.
2.
Determine the number of moles of Phosphate in your water sample.
136086
Mr
Determine the ppm of Phosphorus in your original water sample
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