Drink mix concentrations and absorbances for constructing a standard curve Concentration (mm) Concentration (M) Absorbance
Sample 1 200 0.200 0.52
Sample 2 77 0.077 0.18
Sample 3 32 0.032 0.08
Sample 4 300 0.300 0.77
Sample 5
a. Plot your data of absorbance versus concentration (in M) using Excel. Add a trendline and display the equation of the line to determine the slope and y intercept. Please review the video on using Excel if needed. Enter the slope of the trendline
Enter the y-intercept of the trendline
b. Using the molar absorptivity (slope) determined from your plot, calculate the expected concentration (in M) of a drink mix solution with an absorbance of 0.66.
c. Choose the statement that best answers the following question
Can you use your plot to predict the absorbance of a 214 mM solution of nickel(II) chloride and why?
A. Yes, because the same instrument is used for the measurement of the new compound.
B. Yes, because you can use the same cuvette for the measurement of the new compound
C. No, because the determined absorptivity applies only to the compound measured.

Ineed someone to see if my answers are correct! if any are wrong let me know what the correct answers would be and how to get that answer! 1. how many moles of sodium chloride are in 28 grams od nacl? a. 265 mole naclb. 856 mole naclc. 479 mole of nacld. 1.2 mole nacl < my choice2. 734 grams of lithium sulfate (li2so4) are dissolved to make 2500 ml of solution what is rhe molaratiy? a. 2.67 mb. 4.56 mc. 3.89 m < my choiced. 1.78 m3. how many grams of cacl2 would be dissolved in 3.0 l of a 0.50 m solution of cacl2? a. 250 g cacl2 b. 166.5 g cacl2c. 113.65 g cacl2d. 98 g cacl2 < my choice4. suppose you had 58.44 g of nacl and you dissolved it in exactly 2.00 liters. the molarity if the solution would be 0.5 mtrue < my choicefalse 5. i would need 22g of naoh to make a 3.0 m solution using 250 ml of solvent. true < my choicefalse6. identify the solute: you have a .0195 m solution made from using 6.5 g of solute and 3 l of solvent. identify the solute by solving for molar weight. a. the solute is nacl because the molar weight is 58.43 g/mol < my choiceb. the solute is h2so4 because the molar weight is 98.06 g/molc. the solute is cacl2 because the molar weight is 111.11 g/mol

A40 kilogram skier starts at the top of a 12 meter high slope. at the bottom, she is travelling 10 meters per second. how much energy does she lose to friction

What is the empirical formula of a compound that is 50.7% antimony and 49.3% selenium ?