28.98 mL of a 0.1962 mol/L EDTA solution is required to titrate a sample to the equivalence point. How many moles of divalent metal cations were in your sample?

You want to rent an unfurnished one-bedroom apartment for next semester. You take a random sample of 10 apartments advertised in the local newspaper and record the rental rates. Assume the rental rates are normally distributed. Here are the rents (in dollars per month). 515, 650, 655, 565, 575,...

An application calls for N2(g) with a density of 1.80g/L at 32 degrees.What must be the pressure (atm) of the N2(g)?

In a particular experiment, equal moles of H2(g) at 1.00 atm and Br2(g) at 1.00 atm were mixed in a 1.00 L flask at 25 C and allowed to reach equilibrium. Then the molecules of H2 at equilibrium were counted using a very sensitive technique, and 1.10 1013 molecules were found. For this...

Consider 1.00 L of air in a patient's lungs at 37.0 C and 1.00 atm pressure. What volume would this air occupy if it were at 25.0 C under a pressure of 5.00 102 atm (a typical pressure in a compressed air cylinder)

A sample of gas occupies 150 mL at 25C. What is its volume when the temperature is increased to 50C? (P constant)