The maximum permissible amount of cadmium (M=112 g/n) in drinking water is 0.01 mg/L. What is the permissible molar concentration of cadmium in drinking water?

Remember that the boiling point elevation constant for water is Kb = 0.512 C/kg, and the freezing point depression constant for water is Kf = 1.86 C/kg Use the table provided to answer the question. 1.00 g of Lead (II) Sulfate is mixed into 5.75 L of water. a) How many moles of the Lead (III) Sulfate will actually dissolve into the water? b) How many grams of Lead (III) Sulfate will be left un-dissolved? c) At what temperature will the solution now boil and freeze?

5. Craft beers are popular. Microbreweries can produce rich beers of all kinds with alcohol percentages approaching 9% ABV (alcohol by volume), which means 9 mL of ethyl alcohol per 100 mL of solution. Assuming 2 sig. fig's at the start, calculate what the molarity of ethyl alcohol is at 9.0 % ABV.

Ammonia (NH3, MM 17.031 g/mol) and hypobromite (OBr-) react according to the following chemical reaction. 2 NH3 + 3 OBr- —> N2 + 3Br- + 3 H2O Suppose 0.263 g of ammonia react with 19.0 mL of hypobromite solution. Calculate the concentration of the hypobromite solution

The concentration of bromide ions in seawater is approximately 6.70 X 10-3 %(m/v). The lab has a 0.250 M stock solution of sodium bromide. How many mL of the 0.250 M stock solution will you need to use to make 1.0 L of water with the same concentration of bromide ions as seawater?

25.00 cm3 of 0.100 mol/dm3 sodium hydroxide solution is exactly neutralized by 0.125 mol/dm3 hydrochloric acid. Calculate the volume of hydrochloric acid needed in ml.

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Lisa, a librarian at the Knights of Favonius, is also a great potion maker. She wants to create a potion containing potassium dichromate (K2Cr2O7). The only available solutions in her laboratory are 25.0 mL of 0.650 M solution and 18.0 mL of 0.350 M solution.   What is the concentration of potassium dichromate (in M) when the two solutions are combined? What is its concentration in % w/v? For this potion to have a stronger effect, Lisa wants it to have a concentration of 20.0 % w/v. Can she create it based on combining the available solutions alone? Lisa only settled to produce the lesser potent potion with 10.0 % w/v. How much water will she add (in mL) to achieve this concentration?

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Express the concentration of a 0.0660 M aqueous solution of fluoride, F-, in a mass percentage and in parts per million (ppm). Assume the density of the solution is 1.00 g/mL. Please fill in both blanks.