you combined 25 ml of milk with 30 ml of vinegar. After 10 minutes you observe the mixture again and the graduated cylinder now reads a total of 51.5 ml. How many ml have evaporated from the mixture

Isopropyl alcohol is mixed with water to produce a solution that is 33.0%33.0% alcohol by volume. How many milliliters of each component are present in 895 mL895 mL of this solution?

Measured Mass of NaCI: 11.70 g Measured Volume of Water: 100.0 mL Answer each question with correct significant figures and units. You must show calculations for determining each quantity. If necessary, use the molar mass of NaCI = 58.44 g/mol. You will be asked to show your work for each question. A.Determine the number of moles of NaCI in the solution B.Determine the number of moles of all solutes (both cations and anions) from the number of moles of NaCI that you determined above. C. Determine the mass (in kg) of solvent (assume that the density of water is 1.000 g/mL). D. the molality of all solutes.

You have a beaker of acid that reads: 6.0 M, 250 mL. You add water to the beaker to a final volume of 690 mL. What is the new concentration after diluting the acid? 5.74 M 0 3.69 M 16.6 M 2.17 M

A 2.5 L sample of a 6.2 M NaCl solution is diluted to 65 L . What is the molarity of the diluted solution?         Express your answer using two significant figures.

How many moles of solute are present in 300. mL of a 0.60 M solution of NaOH? Please report your answer with the correct number of significant digits.

You have a solution of NaCl that has a molarity of  3.359 M.  You want to make a dilute solution of NaCl that has a molarity of  0.955 M and you need that dilute solution to have a final total volume of 808.76 mls.  How many mls of the concentrated solution will you use to make that desired dilute solution?   Answer must NOT contain units. Use proper significant figures.

A prescription requires an 4.82 mL injection of a 1:100 solution of a drug. The pharmacy only carries a 1:250 solution. What volume (in mL) injection would be required to maintain the same drug dosage? Give your answer rounded to two digits to the right of the decimal point. Do not enter the unit.

A 0.3360 g sample of potassium hydrogen phthalate is dissolved in 100.0 mL of water. If 29.47 mL of sodium hydroxide solution are required to reach the equivalence point, what is the molarity of the sodium hydroxide solution? Be sure to report your answer with the correct units and number of significant figures.   Your Answer:         Answer units

Be sure your answer has the correct number of significant digits.