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Which provides better protection once more corrosion painting a metal or galvanizing a metal?
Explain a sample of gas occupy a volume of 58.6 mL. As it expands it does 117.8 J of work on its surroundings at a steady pressure of 783 torr. Explain what is the final volume of the gas in mL
A vitamin C containin sample was titrated to the blue colored endpoint with 19 ml of 0.12 M iodine solution. How many grams of Vitamin C were in the sample
Although the use of absorbances at 450 nm provided you with maximum sensitivity, the absorbaces at, say, 400 nm or 500 nm are not zero and could have been used throughout this experiment. would the same value of K be obtained at one of these wavel..
Compute the concentrations of the ions as well as the molar solubility and the solubility product constant for salt at 25 Celsius. Step by step and the balanced reaction
An experiment shows that a 250 mL gas sample has a mass of 0.430 g at a pressure of 728 mmHg and a temperature of 26 C. What is the molar mass of the gas?
magnesium sulfate mgso4 is added to 469 ml of 0.040 msodium hydroxide naoh until a precipitate just forms. how many
A 0.1000M solution of ethanoic acid (HC2H3O2) is only partially ionized so that [H+]=2.25X10^-3M. What is the acid dissociation constant for this acid?
The empty bulb is filled with water and weighed. The water-filled bulb has a mass of 268.63 g at a temperature of 25.0 0C. The density of water at 25.0 0C is 0.9970 g/mL. Use the mass of the empty bulb and this data to show that the volume of the ..
Use the Nernst equation and data from Appendix D to calculate Ecell for each of the following cells. Enter your answer with 3 significant digits. Enter scientific notation as 1.23E4.
Calculate the heat evolved per mole on combustion of each substance to yield {rm CO_2}(g) and {rm H_2O}(g).
What volumes of 0.50M HNO2 (Ka = 4.00*10^-4) and 0.50M KNO2 is needed to make a 1L buffered solution with a pH of 3.00
Calculate the pH of the solution that results from each of the following mixtures.160.0 mL of .27 M HF with 220 mL of .32 NaF
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