Hello, I need some help with various problems. Please make the answers are correct 1. A 4 g mass of NaOH is dissolved in 5mL of water a. what is the approximate molar concentration of the NaOH? My answer.. 4 g X 1 mol NaOH/40.00 g NaOH = .1 mol NaOH M=m/V .1 mol NaOH/....
(5pts) Molar Mass of a Solute Using Freezing Point Depression Are you completing this experiment online? Data Collection Yes 55.644 Weight of empty test tube and beaker (6) Weight of test tube, beaker, and stearic acid (9) 64 672 Time and ...
To estimate the molar mass of the unknown gas based on the molar mass of argon, which assumptions should be made? Check all that apply. The pressure is the same for both argon and the unknown gas. The atomic radii is the same for both a...
Molar Mass of a Gas:We are familiar with the pressure (P), volume (V), temperature (T), and number of moles (n) of gas in the Ideal Gas Law equation but the molar mass of the gas can also be calculated from the same equation. Like any other calculati...
When heat capacity is given in terms of the mass of a substance in grams it is called specific heat—the amount of heat required to raise the temperature of 1 g of a substance by 1 Celsius degree. (We choose to use units with specific heat, as many do, because it is desirable in ...
2. The solubility of calcium hydroxide in 0.010M sodium hydroxide is only 0.0743 grams per 250.0mL; show all work to prove that the K sp of calcium hydroxide is a constant in these two problems. II. Procedure Part 1: Day One 1. Label (with a permanent marker on the glass portion) tw...
2.)Molar Mass of ZnO a.Calculation: 65.38+16.00=81.38gmol 3.)Mass ofZnCO3starting material(from1st page of Report Sheet) 4.)Mass of ZnO recovered after the3rd reaction a.Calculation: 5.)Mass of ZnO expected from ...
Pure cyclohexane,C6H12,has a molar mass of84.161gmol-1and a density of0.7785gmL-1,a freezing point of6.53°C,and a boiling was made by taking15.46g of an unknown nonelectrolyte and dissolving it in125.0g of cyclohexane. ...
Molar Mass of a Solute Using Freezing Point Depression Are you completing this experiment online? Yes Data Collection Weight of empty test tube and beaker(g) 56.824 Weight of test tube, beaker, and stearic acid(g) 65.805 Time and Temperature Data:...
In cryoscopic determination of molar mass, teh molar mass in g mol^-1 is given by M=1000wKf/(W(deltaTf))(1-kf(deltaTf), derive a formula for the relative error in the molar mass using the approximate equation M=1000wKf/(W(deltaTf)) ...