A chemist mixes 28.4 g of acetone with 60.1 g of 4-methyl-2-pentanone and 4.31 g of methanol. Calculate the percent by mass of each component of this solution. Be sure each of your answer entries has the correct number of significant digits. component acetone 4-methyl-2-pentanone methanol mass percent Ï% 0 п% % ☐ x10 X

63 gallons of a 26% acid solution are mixed with 44 gallons of a 80% acid solution. What is the acid concentration of the resulting mixture? Round to the nearest percent.

In this task, you are to prepare 3 × 100 mL solutions of acetic acid at 3 different concentrations. You are provided with a stock solution at 2 % and will need to perform 3 dilutions. Complete the table below to calculate how much of the stock solution and how much water is required to prepare these solutions. For this calculation the following equation may be useful: C₁ V₁ = C₂ V2 Where C₁ is the initial concentration of the stock solution, V₁ is the amount of stock solution you need to add, C2 is the final concentration that you desire and, V2 is the final volume that you desire. All the values for this equation have been provided, aside from V₁ which you will need to solve the equation to determine. + Solution 2 Acetic acid at 0.5 % Solution 3-Acetic acid at 0.2% Solution 4 - Acetic acid at 0.1% Amount of stock solution to add A student uses the 1% acetic acid stock solution to make a new dilution for an experiment. The student takes 32 mL of the stock solution and makes a dilution…

A certain liquid X has a normal freezing point of -6.20 °C and a freezing point depression constant K, = 5.32 °C kg-mol. Calculate the freezing point of a solution made of 3.7g of sodium chloride (NaCl) dissolved in 100. g of X. Round your answer to 3 significant digits. 0°C X 0 A