Chapter 1, Problem 1.57E

Two reasons to write a number in scientific notation are when it is either very big or very small. Another is

SIGNIFICANT FIGURES We have 5.15 ml of a solution containing 1.973 g/ml protein. How much total protein do we have? We have five results from an experiment: 2.6%, 2.4%, 2.5%, 2.3%, 2.4%. The average of these five measurements is ……….%. While doing multiple calculations on the same data set, rounding should be done for the final answer.

Q7 You have a stock solution that contains 78 mM calcium carbonate. You need to make 98 mL of a solution that contains 10 mM calcium carbonate. How many mL of the stock solution do you need to use? Answer to 2 decimal places Read about significant figures and rounding in the Helpful Resources page! Do not include units when reporting your answer Use standard notation as accepted by Canvas e.g. 0.01