Question: help with this please! i need help with the last one! 2. A linear standard curve of KMnO4 is prepared from a set of standard

help with this please! i need help with the last one!

2. A linear standard curve of KMnO4 is prepared from a set of standard solutions by plotting absorbance (y) vs. concentration ( x ). Use Logger Pro (as described in the Data Analysis for this experiment), or Google Sheets/Excel, to plot this standard curve using the data in Table 1. Help with spreadsheets [PDF] Table 1: Data for the standard curve of KMnO4 After plotting the standard curve, enter its slope below (not the equation of the line). Report your answer to 3 significant figures. If your answer ends in one or more zeros, use scientific notation. Slope= 3. Suppose that an unknown sample is analyzed spectrophotometrically at the same wavelength that was used for the standard curve and the absorbance was found to be 0.200. Use the standard curve to find the concentration of the unknown. Hint

Step by Step Solution

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock blur-text-image

Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock

Step: 3 Unlock

Students Have Also Explored These Related Chemistry Questions!

help with both 2 and 3 please!! Here is the graph i got! 2. A linear standard curve of KMnO4 is prepared from a set of standard solutions by plotting absorbance (y) vs. concentration ( x ). Use...

1. Calculate the concentration of a solution prepared by adding 15.00mL of 2.07103M KMnO4 from a buret into a 50.00mL volumetric flask, which is then filled to the 50.00mL graduation mark with...

thanks! Please be clear 2. A linear standard curve of KMnO, is prepared from a set of standard solutions by plotting absorbance (y) vs. concentration (x). Use Google Sheets/Excel to plot this...

2. A linear standard curve of KMnO4 is prepared from a set of standard solutions by plotting absorbance (y) vs. concentration (x). Use Logger Pro (as described in the Data Analysis for this...

plz help A student was given a stock aluminum(ili) solution with a concentration of 5.000 parts per million (ppm). (ppm are defined as mg/L for dilute aqueous solutions.) The student prepared five...

Help! Will upvote. Thanks! Concentration of the stock solution of KMnO. 2.00-10-3 m Blank Cuvet Analysis: Rough Sketch of Spectra Uppery axis limit Lowery- axis limit Distilled Water "Blank" 0.02...

Questions are last 2 pictures. PLEASE HELP ON PRELAB WILL UPVOTE PLEASE! Introduction Many chemical reactions proceed in the forward direction as well as in the reverse direction until they reach a...

MATLAB ASSIGN 1- Follow Directions and Complete. Will Thumbs Up! Directions: Unless otherwise specified, your write-up should contain the MATLAB input commands, the corresponding output, and the...

Suppose a linear probability model you have developed finds there are two factors influencing the past bankruptcy behavior of firms: the debt ratio and the profit margin. Based on past bankruptcy...

Why may a dividend increment lag after an increase in earnings? Discuss.

Bank loans to business firms Multiple Choice are usually shor - term in nature. All of these options are true. may require compensating bolances. are preferred by the bonker to be self - liquidating.

b) Suppose we'd like to add one extra tab (called setting page) to the sample GamecockStore app (with tabs). Write down key steps with commands and statements to do this. You need to show which file,...

5. Suppose foreigners spend $7 billion on U.S. exports in a specific year and Americans spend $5 billion on imports from abroad in the same year. What is the amount of the United States net exports?...

6. Which of the following are included in this years GDP? Explain your answer in each case. LO1

4. Why are changes in inventories included as part of investment spending? Suppose inventories economics 310 declined by $1 billion during 2008. How would this affect the size of gross private...