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Calculate: How many grams of solid AgNO, will be needed to prepare 200 mL of a 0.200 M solution?
What is the pH of a solution prepared by mixing 50 ml of a .01055 M solution of lactic acid with 30 ml of a .0125 M NaOH. ka for lactic acid = 1.4E-4. What is the new pH if you add 15 ml more of the NaOH to the above solution
When NaCl is added to a solution of AgNO3, a white precipitate of AgCl forms. If concentrated ammonia, NH3, is added to this precipitate, a clear colorless solution forms containing [Ag(NH3)2]+.
The average radius of a molecule of lysozyme, an enzyme in tears is 1430pm,what is the radius in nanometers.
Phosphoric acid reacts with magnesium hydroxide to produce magnesium phosphate and water via the following reaction: ?H3PO4 + ?Mg(OH)2->?Mg3(PO4)2 + ?H2O
We all know that a day at the beach leaves us worn-out. Assuming our body looses its heat energy to the water, and on a typical day of swimming at the beach we encounter 135.0kL of water at a constant Temperature. How much energy are we loosing to..
A solution was prepared by mixing 43.00 mL of 0.190 M HNO3 and 108.00 mL of 0.150 M HNO3. Calculate the molarity of the final solution of nitric acid.
a 45.0 g aluminum block initally at 28.0 celsius absorbs 825 joules of heat. what is the final temperature of the
Determine how many grams of the following solutes would be needed to make 550 mL of a 0.700 M solution.
What is the formula of the zinc sulfate hydrate? name this compound
Assuming levels of atmospheric CO2 are 390 ppm CO2, what is the pH of rainwater in equilibrium with the atmosphere for the pre-industrial atmospheric CO2 concentration of 280 ppm,v
at 25.0degc a sample of xe gas occupies 509 ml in a piston-cylider apparatus when the external pressure is 356 torr. at
Does the volume of a gas increase, decrease, or stay the same when the pressure decreases from 760 to 350 mm Hg and the temperature decreases trom 250°C to - 50°C
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