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Calculate the molarity (M) of HCl used in the titration of a 0.2239g sample of sodium carbonate that required 39.01mL of the titrant (HCl) to reach the second equivalence point.
What difference in titrant volume would you except between the end- point and the equivalence point if the only indicator available was diphenylamine sulfuric acid
Aluminum reacts with excess hydrochloric acid to form aqueous aluminum chloride and 36.8 mL of hydrogen gas over water at 27°C and 764 mmHg. How many grams of aluminum reacted?
Oxides of the alkaline earth family form _______ solutions upon reaction with water. a) acidic, b)basic, c) neutral, or d)amphiprotic
a 2.85 g sample containing only mgo and cuo is placed in a 3.00 l container. the container is filled with co2 to a
1. Explain what is happening to electrons when light is emitted in emission spectra. 2. List the possible energy level changes for electrons emitting visible light in the hydrogen atom. What is the name of this series of lines?
How many kJ of energy are released when 10.0 g Al reacts with Fe2O3 as shown in the following equation
The osmotic pressure of a solution formed by dissolving 85.0 mg of aspirin (C9H8O4) in 0.250 L of water at 25 °C is __________ atm.
A 5-ounce cup of raspberry yogurt contains 6.0 g of protein, 2.0 g of fat, and 16.3 g of carbohydrate. The fuel values for protein, fat, and carbohydrate are 17, 38, and 17 kJ/g, respectively. The fuel value of this cup of yogurt is _____ kJ.
A constant electric current deposits 0.365 g of silver metal in 12960 seconds from a solution of silver nitrate. What is the current? What is the half reaction for the deposition of silver. Molar mass of Ag is 107.9
During osmosis A) pure solvent diffuses through a membrane but solutes do not. B) pure solutes diffuse through a membrane but solvent does not. C) pure solvent and a solution both diffuse at the same time through a membrane.
a solid cylinder of plastic has a density of 1.6 gcm3. if is then cut exactly in half. what is the density of each of
Problem- Estimate the calcium concentration in a groundwater sample, which has a pH of 5.50. Assume that the groundwater at his location is saturated with CO2 at a partial pressure of 0.1 atm.
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