BuyFindarrow_forward

Chemistry & Chemical Reactivity

10th Edition
John C. Kotz + 3 others
ISBN: 9781337399074

Solutions

Chapter
Section
BuyFindarrow_forward

Chemistry & Chemical Reactivity

10th Edition
John C. Kotz + 3 others
ISBN: 9781337399074
Textbook Problem

You can analyze for a copper compound in water using an instrument called a spectrophotometer. [A spectrophotometer is a scientific instrument that measures the amount of light (of a given wavelength) that is absorbed by the solution] The amount of light absorbed at a given wavelength of light (A) depends directly on the mass of compound per liter of solution. To calibrate the spectrophotometer, you collect the following data:

images

Plot the absorbance (A) against the mass of copper compound per liter (g/L), and find the slope (m) and intercept (b) (assuming that A is y and the amount in solution is x in the equation for a straight line, y = mx + b). What is the mass of copper compound in the solution in g/L and mg/mL when the absorbance is 0.635?

Interpretation Introduction

Interpretation: The absorbance should be plotted against the mass of the copper. The slope, intercept and mass of copper compound in solution should be determined.

Concept Introduction:

Graph and graphing: In the equation,y=x+b where y is referred as dependent variable, x is called the independent variable, and m is the slope of the line.

Explanation

The graph is as follows,

  

    Slope=ΔyΔx=0.2571.029×10-3=249

When x=0y is also zero, therefore the y intercept is zero.

    y=mx+c=249x+0

Still sussing out bartleby?

Check out a sample textbook solution.

See a sample solution

The Solution to Your Study Problems

Bartleby provides explanations to thousands of textbook problems written by our experts, many with advanced degrees!

Get Started

Additional Science Solutions

Find more solutions based on key concepts

Show solutions add

Consuming large amounts of saturated fatty acids lowers LDL cholesterol and thus lowers the risk of heart disea...

Nutrition: Concepts and Controversies - Standalone book (MindTap Course List)

Name three carbohydrates that can be built using only glucose monomers.

Biology: The Unity and Diversity of Life (MindTap Course List)

What are the four most common metric prefixes?

An Introduction to Physical Science

If a loop of chain is spun at high speed, it can roll along the ground like a circular hoop without collapsing....

Physics for Scientists and Engineers, Technology Update (No access codes included)