g measuring the absorbance of a set of BSA standards you obtain the following absorbance (A595) values: Blank = 0 2ng/ml=.02 4ng/ml=.04 6ng/ml=.06 8ng/ml=.08 You then measure the absorbance of a 1:10 dilution of 2 unknown protein samples (1) and (2) and obtain the following A595 values. 1= .03 and 2 =.06. Given those absorbance values what was the concentration of protein in the original samples 1 and 2?

Which of the following compounds does not contain molecules? question 2 options: co2 h2 nacl h2o

Sulfur dioxide and oxygen react to form sulfur trioxide during one of the key steps in sulfuric acid synthesis. an industrial chemist studying this reaction fills a 25.0l tank with 4.5 mol of sulfur dioxide gas and 4.5 mol of oxygen gas at 30.°c. he then raises the temperature, and when the mixture has come to equilibrium measures the amount of sulfur trioxide gas to be 1.4 mol. calculate the concentration equilibrium constant for the reaction of sulfur dioxide and oxygen at the final temperature of the mixture. round your answer to 2 significant digits.

Correct relationship between molecular formula and empirical formula