References A bottle of wine contains 12.2% ethanol by volume. The density of ethanol (C,H,OH) is 0.789 g/cm. Calculate the concentration of ethal in wine in terms of mass percent and molality. a. Mass percent= b. Molality mol/kg

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Calculate grams of sucrose that must be added to 112.5 grams of water to prepare a 12.5 % by mass solution. a. 32.1 b. 16.1 c. 8.04 d. 0.244 e. 48.2

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How do you prepare 150.0 mL of a 0.340 M HCl solution from concentrated 12.0 M HCl? Group of answer choices A. 4.25 mL of concentrated HCl is added to 150.0 mL of DI water. B. 27.2 mL of concentrated HCl is added to 150.0 mL of DI water. C. 27.2 mL of concentrated HCl is diluted to a total volume of 150.0 mL of DI water. D. 4.25 mL of concentrated HCl is diluted to a total volume of 150.0 mL of DI water.

Consider the solubilities of a particular solute at two different temperatures. Temperature (°C) Solubility (g/100 g H₂O) 20.0 44.4 30.0 78.2 Suppose a saturated solution of this solute was made using 81.0 g H₂O at 20.0 °C. How much more solute can be added if the temperature is increased to 30.0 °C? mass: g

10. Vinegar is acetic acid dissolved in water. If the store-bought vinegar is 0.50% acetic acid by volume what is the solution's molarity? The molar mass of acetic acid 60.0 g/mol. The density of acetic acid is 1.05 g/mL. The density of the solution is 1.02 g/mL. A. 0.0875 M B. 0.0858 M C. 0.875 M D. 0.00858 M