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Calculate the necessary amounts of solutes and solvents to make a 4L bottle of antifreeze that will cause a 35 degree change in the freezing point of water. Solutes are Al2(SO4)3, KBr and Mg(NO3)2
A chemist adds 295.0mL of a 0.071M potassium permanganate (KMnO4) solution to a reaction flask. Calculate the mass in milligrams of potassium permanganate the chemist added to the flask.
When backpacking in the wilderness, hikers often boil water to sterilize it for drinking. Suppose that you are planning a backpacking trip and will need to boil 38L of water for your group.
A 97 gram solution of silver nitrate contains 10 grams of AgNO3. What is the percent by mass of silver nitrate in this solution. Answer in units of %
the solubility of carbon dioxide in h2o at the temperature of twenty five degree celsius and pressure of co2 1 atm
A hypersaline solution with a molality of 4.53m has a salt content so high that the mass of the solution per 1000 grams of water is 1265g. calculate the molarity
How many milliliters of 0.100 mol of KOH solution are needed to completely neutralize the HCl in 300 mL of a hydrochloric acid solution that has a pH of 2.25?
In the synthesis of benzoic acid rom CO2 and the phenylmagnesium bromide, benzene is often detected as a impurity, how does this come about
Part A: Thymolphthalein is an indicator that changes color over a range from pH = 9.3 to pH = 10.5 . What is Ka of thymolphthalein. Part B: Alizarin yellow R, Ka=7.9x10^-12, is yellow in its protonated form (HX) and red in its ionized form (X-)
what volume of .2500M colbaat(III)sulfate is required to react completely with 5.00 grams of sodium carbonate?
What is the voltage of the cell: silver-silver chloride electrode || saturated calomel electrode given that the potential for the Ag|AgCl electrode in a saturated KCl
When 0.047 moles of ammonium sulfate are dissolved in enough water to make 413 milliliters of solution, how many ammonium ions are present?
Show, with the aid of a form of the Nernst equation that when using a pH sensitive glass electrode and reference electrode that the measured potential is proportional to pH.
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