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A student titrated three different samples of KHP and determined that the sodium hydroxide molarity was 0.1234 M, 0.1244 M, and 0.1199 M, respectively. Calculate the sample mean and the sample slandered deviation?
identify the type of reaction..Barium chloride + sulfuric acid ---> Barium sulfate (s) + hyrdochloric acid
What is the correct order of the following inert electrolytes in their ability to increase the degree of dissociation of acetic acid?
Find the pH of a 0.135 M aqueous solution of periodic acid (HIO4), for which
A 50.0-g sample of metal at 100.0 degrees C is added to 39.0 g water that is initially 23.50 degrees C. the final temperature of both the water and the metal is 28.46 degrees C.
Hydrogen peroxide decomposes to water and oxygen, and the activation energy for this process is 42 kJ/mol. The hydrogen peroxide formed in the biological process is harmful to tissue
The vapor pressure of water at 20oC is 17.5 mmHg. What is the vapor pressure of water (in mmHg) over a solution prepared from 258 g sucrose (C12H22O11) and 350 g water?
What is the pH at the half-stoichiometric point (that is, what is the pH when you have added 50% of the total volume of base required to react with all of the acid originally present?)
A piston has an external pressure of 11.0 atm . How much work has been done if the cylinder goes from a volume of 0.150 liters to 0.620 liters.
What is the reaction mechanism (detailed with arrows) for trans-cinnamaldehyde when reacted with benzyltriphenylphosphonium chloride?
A patient weighs 165 pounds and is to receive a drug at a dosage of 45.0 mg per kg of body weight. The drug is supplied as a solution that contains 25.0 mg of drug per mL of solution. How many mL of the drug should the patient receive?
Using Henry's law, calculate the molar concentration of in the surface water of a mountain lake saturated with air at 20 and an atmospheric pressure of 660 torr.
How many grams of magnesium chloride must be dissolved in 568 g of water to give a solution that freezes at -2.38°C
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