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Calculate the pH of a solution containing 0.20M in HCN and 0.12M NaCN. Is this a buffered solution?
What is the minimum amount of energy from the sun required to produce 4 g of glucose in this way? ?Hf of glucose is -1260 kJ/mol.
Calculate the molarity of a solution of glycerol made by dissolving 46.000 mL glycerol at 15 ^circ {rm C} in enough water to make 400.00 mL of solution.
The 20 mL of water added to the Erlenmeyer flask is to be previously boiled, deionized water. Since water does absorb CO2 from the atmosphere and since CO2 dissolved in water causes it to be slightly acidic,
A solution is made by dissolving 92.4 g of a non-electrolyte in 800. g chloroform (Kb=3.63 degrees C-kg/mol and Tb=61.26 degrees celsius). The boiling point of this solution is 62.91 degrees celsius. What is the molar mass of the non-electrolyte
an auto mechanic spills 90. ml of 2.6 m h2so4 solution from a rebuilt auto battery. how many milliliters of 2.5 m
What is the work exchanged between the system(gas) and its surroundings. What is the change in internal energy of the gas. What is the change in enthalpy of the gas
A combustion devise was used to determine the empirical formula for a compound that only contains C, H, and O. A 0.6349 g sample of the unknown produced
A 10.0 mL sample of vinegar, which is an aqueous solution of acetic acid, CH3COOH, requires 16.5 mL of a .500 M NaOH solution to reach the end point in a titration. what is the molarity of the acetic acid solution? CH3COOH(aq)+NaOH(aq)>NaCH3COO(aq..
1. Why does milk go sour and what causes the formation of curd? 2. Explain why during the experiment casein precipitates wheen hydrochloric acid is added to it.
ou have the following supplies: 2.00L of 1.00M KH2PO4 stock solution, 1.50L of 1.00M K2HPO4 stock solution, and a carboy of pure distilled H2O . How much 1.00M KH2PO4 will you need to make this solution?
What is the order of the reaction with respect to sucrose and the value of the rate constant k
Larger molecules of hydrocarbons are broken into two or more smaller hydrocarbon molecules by a process known as
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