Artículos de esta sección

• Molarity from % (m/V) concentration (8303)

  8 de septiembre, por F_y_Q

  Calculate the molarity of a sulfurous acid solution whose concentration is (m/V).

• Molar fraction and molality of a solution (8298)

  3 de septiembre, por F_y_Q

  A solution contains by mass of HCl:
  a) Calculate the molar fraction of HCl.
  b) Calculate the molality of HCl in the solution.

• Raoult’s law and vapor pressure (8282)

  9 de agosto, por F_y_Q

  Calculate the vapor pressure at of a solution containing 150 grams of glucose dissolved in 140 grams of ethyl alcohol. The vapor pressure of ethyl alcohol at is 43 mm Hg.

• Mass of a volume of ethanol, expressed by pounds (4883)

  3 de enero de 2019, por F_y_Q

  The density of ethanol is 0.79 g/mL. Calculate the mass, expressed in pounds, of 17.4 mL of ethanol, knowing that one pound is equal to 0.45 kg. Express the result using scientific notation.

• Solutions: Percentage by mass (1931)

  10 de noviembre de 2012, por F_y_Q

  Make a solution by mixing 22 g of sugar and 240 mL of milk. Determine the percentage by mass of this solution. How much sugar is needed to prepare 500 g of solution with the same concentration?
  Average density of milk is .