From Questions to Solutions

Calculate the molarity of each solution. (a) 33.2 g of KCl in 0.895 L of solution (b) 61.3 g of C₂H₂O in 3.4 L of solution (c) 38.2 mg of

Calculate the sample standard deviation for the following data set. If necessary, round to one more decimal place than the largest number of decimal places given in the data. [tex]\[

The formula to convert Fahrenheit to Celsius is [tex]C = \frac{5}{9}(F - 32)[/tex]. Convert 18 degrees Celsius to Fahrenheit. Round to the nearest degree.

The average American consumes 81 liters of alcohol per year. Does the average college student consume more alcohol per year? A researcher surveyed 10 randomly selected college students and found

Julia wants to make 8 bows using 18 feet of ribbon. She wants to use an equal length of ribbon for each bow with no ribbon left over. How many

What is the half-life of an isotope that decays to 6.25% of its original activity in 36.6 hours?

Katie has a roll of ribbon that is 8 feet long. She cuts off 3 feet of ribbon, and the remaining length is cut into 8 shorter pieces of equal

Find the surface area of the nets below. (Use decimals. Please enter the number only.) A. 42.5 B. 38.2 C. 34.7 D. 29.4

A motorboat sets out in the direction N 62°18' E. The speed of the boat in still water is 36.9 mph. If the current is flowing directly south, and the

Dooley Co. had the following shares and bonds outstanding during 20A1: - 200, 000 shares of common stock - 20, 000 shares of convertible preferred stock - $1, 000, 000

A solution is composed of 1.60 mol cyclohexane ([tex]P^\circ_{\text{cy}} = 97.6 \text{ torr}[/tex]) and 2.90 mol acetone ([tex]P^\circ_{\text{ac}} = 229.5 \text{ torr}[/tex]). What is the total vapor pressure [tex]P_{\text{total}}[/tex] above

A company wants to estimate the mean lifetime of their [tex]D[/tex]-batteries. They randomly select 60 D-batteries and measure how long they last in a flashlight. Use the data below to

A silver cup is plated with silver by passing a current of 965 amperes for one second. The mass of Ag deposited is: (Atomic weight of Ag = 107.87). A.

You find a male skeleton with a humerus that measures 35.9 cm. How tall would this person have been in meters? \[ H = \text{humerus length} \times 2.97 + 73.57

If the intracellular concentration of Ca\(^{2+}\) is 10 mEq/L and the extracellular concentration is 170 mEq/L, what would be the equilibrium potential? A. -37.9 mV B. -71.8 mV C. +35.9