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A solid mixture (5g) consisting of lead nitrate as well as sodium nitrate is heated below 600 degree Celsius until the weight of the residue was constant. If the loss in weigh is 28%, Compute the amount of lead nitrate and sodium nitrate in the mixture?
Identify the correct equilibrium expression for the reaction
If 164 of wet is collected over water at 24 degrees C and a barometric pressure of 737 Torr , how many grams of Zn have been consumed? (The vapor pressure of water is 22.38 Torr)
A student performing a lab experiment obtained 2.120 g of alum for .480 g of Al metal. a. calculate theoretical yield. calculate percentage yield
Specified that 1 gallon = 3.7854 L, 1 kg = 2.205 lb, water has density 0.997 g/mL as well as freezing-point depression constant, kf of 1.86 oC kg mol-1, as well as the resulting sodium-chloride solution has a density of 1.179 g/mL, Explain what is..
Potassium hydrogen phthalate (KHP) is used as a primary standard acid to accurately determine the molarity of a NaOH solution via a titration. The formula of KHP isKHC8H4O4 and has a molar mass of204.23 g/mol.
Estimate the total calories in a slice of bread that has 9.0 g of carbohydrates, 2.0 g of protein, and 1.0 g of fat. What percentage of total calories is from fat?
Calculate the pH of the solution, taking into account the activity coefficients for H+ (yH+ = 0.933) and IO3- (yIO3- = 0.928). Assume yHIO3 = 1. (Hint: quadratic)
an aqueous solution formed by dissolving 1.62 grams of anhydrous aluminium chloride in 50.0 grams of h2o has a freezing
Which of the following solvents, hexane, methylene chloride, acetone, or methanol will give the best seperation on a TLC plate of a mixture composed of
A sample of oxygen is collected by water displacement at a temperature of 35C when the barometric pressure is 752 mm Hg. What is the partial pressure of the dry gas?
Write the electron configurations for P and Cl using both the spdf notation and orbital box diagrams. Describe the relationship between each atom's electron configuration and its position in the periodic table.
What is the pH of a solution that is 0.10 M CH3NH2 (methylamine) and 0.15 M methylammonium chloride
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