Calculate the charge due to all of the electrons present in 1.0 mL of pure water. (1.0 mL of water will contain 3.34*10^22 water molecule).
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Calculate the charge due to all of the electrons present in 1.0 mL of pure water....
4. Calculate the pH of a solution of pure water containing 1.0 mg/L of sulfuric acid.
Calculate the pH after adding 10.00 mL of 0.15 M HCl to 50 mL of pure water.
Table 1: 10 mL Undiluted (1.0-2.0%) IKI and 5 mL 3% H2O2 mL water displaced Time (seconds) 2 20.6 4 43.9 6 66.9 8 98.7 10 130.6 12 155.5 14 180.3 16 242.4 18 278.8 20 340.1 22 361.2 Slope: 17.03 Inverse Slope: 5.87 x 10-2 Table 2: 10 mL 0.5-1.0% IKI and 5 mL 3% H2O2 mL water displaced Time (seconds) 2 86.8 4 115.2 6 139.8 8 197.6 10 256.8 12 296.0 14 321.4 16 397.5 18 471.3...
18. Diluting 1.0 mL of a 1.0 M solution to 1000 mL results in a solution that is 0.001 M. Repeating this 1000-fold dilution process five more times results in a concentration of A. 1.0 x 10-8 M B. 5.0 x 10-'M C. 1.0 x 10-18 M D. 1.0 x 10-12 M E. 2.0 x 10+M 19. Which of the following statements is true regarding electrolytes and nonelectrolytes? A. Molten ionic compounds are usually considered to be weak electrolytes. B....
(21) Water has a mass per mole of 18.0 g/mol, and each water molecule (H2O) has 10 electrons. (a) How many electrons are there in 1.0 L of water? (b) What is the net charge of all these electrons? (22) Two point charges are fixed on the y-axis: a negative point charge q1 = ?25.0 µC at y1 = 0.22 m and a positive charge q2 at y2 = 0.34 m. A third point charge q = 8.4 µC is...
What is the total charge of all the electrons in 9.11 L of liquid water?
What is the total charge of all the electrons in 9.11 L of liquid water?
100 mL of air is in contact with 1L of pure water in a closed vessel at 10°c. If the water is initially oxygen free, once equilibrium has been reached, what is the concentration of oxygen in the water and the partial pressure of oxygen in the air once equilibrium has been reached? Assume no volatility due to water. The Henry's constant for oxygen is 588 atm.L/mol at 10°C. What other assumptions do you make in performing this calculation? Note...
If 75 mg of lead(II) sulfate is placed in 250 mL of pure water, does all of it dissolve? If not, how much dissolves? (Ksp for lead(II) sulfate = 6.3 x 10-7)
IV. Comparing Buffering Capacity A. pH of Pure Water i. Measure out 30.0 mL DI H2O into a beaker. 1. Calculate the expected pH of pure water. pH ________ 2. Measured pH of pure water. pH ___3.88______ 3. What is the percent error between the calculated and measured value? What are some of the possible sources of this error? % error __________ B. pH of Water and Strong Acid i. Measure out 30.0 mL DI H2O and 2.0...