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A sample of water from Lake Huron has a pH of 7.34 and an alkalinity of 1.21 mmol L-1 as calcium carbonate. Assume equilibrium with the calcium carbonate in the sediment and calculate the concentration of calcium ion (in mg/L -1) in the water (25C). What assumptions are made in carrying out the calculation?
How many moles of H2SO4 must be present to react completely with the NaOH delivered from the buret.
According to Raoult's law, which statement is false?
NO2 then interacts withUV light according to the following reaction. Classify this reaction as a synthesis, decomposition, single-displacement, or double-displacement reaction.
In a solution of glucose and water, if 4.5% of the mass is glucose, how many grams of the solution contain 2.25 g glucose ?
This Tetris ice cube game is available to play as long as the ice cubes remain ice. The game pieces weigh 178 g, and the heat capacity of the room air,
Metals such as magnesium and zinc react with dilute sulfuric acid to give hydrogen, according to the equation: M (s) + H2SO4 (aq) -------> MSO4 (aq)
what volume of Cl2 gas will be in a balloon after a 3.95 L sample at ATP is put into an oven set for 70.0 C
What's the total pressure generated by a mixture of gases if the pressure of oxygen is 465 mm Hg, the pressure of nitrogen is 1.1atm and the pressure of chlorine is 501 torr? Report your answer in torr. Report your answer to no decimal places.
At 27.7mL sample CO2(g) was collected over water at 25.0 degrees celsius and 1.00 atm. What is the pressure in torr due to CO2(g)?
If 1.19 mL of a 1.4 x 10-5 M stock solution is pipette into a test tube, and 8.81 mL of water is added to the test tube and mixed, what is the concentration of the new solution in the test tube?
degrees celsius was added to an insulated vessel containing 50.0 g ice and 25.0 g water at 0 degrees celsius. What mass of liquid water is present in the vessel at the end?
the hypothetical metal Q with atomic mass of 68.33 has two isotopes ^67Q (isotopic mass 66.945 amu) and ^69Q (isotpes mass 68.958 amu) calculate the abundance of ^67Q in %
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