Determine the mass of nickel(II) chloride required to prepare 2.50 L of an aqueous solution having...
A 0.40g sample of a polypeptide dissolved in 1.0 L of an aqueous solution at 27 degrees C gave rise to an osmotic pressure of 3.74 Torr. What is the molar mass of polypeptide?
Suppose 3.81g of nickel(II) chloride is dissolved in 250.mL of a 69.0m M aqueous solution of potassium carbonate. Calculate the final molarity of chloride anion in the solution. You can assume the volume of the solution doesn't change when the nickel(II) chloride is dissolved in it. Round your answer to 3 significant digits.
A chemist prepares a solution of nickel(II) chloride (NiCl) by measuring out 54.7 jumol of nickel(II) chloride into a 150. ml. volumetric flask and filling the flask to the mark with water Calculate the concentration in mmol/L of the chemist's nickel(II) chloride solution. Round your answer to 3 significant digits.
A chemist prepares a solution of nickel(II) chloride (NICI,) by measuring out 72.6 mol of nickel(II) chloride into a 400 ml volumetric flask and filling the flask to the mark with water. Calculate the concentration in mol/L of the chemist's nickel(II) chloride solution. Be sure your answer has the correct number of significant digits. XS ?
A chemist prepares a solution of nickel(II) chloride (Nici, by measuring out 36. umol of nickel(II) chloride into a 450 ml volumetric flask and filling the flask to the mark with water. Calculate the concentration in umol/L of the chemist's nickel(II) chloride solution. Be sure your answer has the correct number of significant digits. 0. x 5 ?
Suppose 0.509 g of nickel(II) chloride is dissolved in 100. mL of a 23.0 mM aqueous solution of potassium carbonate. Calculate the final molarity of nickel(II) cation in the solution. You can assume the volume of the solution doesn't change when the nickel(II) chloride is dissolved in it. Be sure your answer has the correct number of significant digits. (M)
An aqueous magnesium chloride solution having a density of 1.049 g/cm3 is found to have an osmotic pressure of 17.0 atm at 25°C. Find the temperature at which this solution boils.
A solution of 7.50mg of a small protein in 5.00ml aqueous solution has an osmotic pressure of 7.95 torr at 23.1 degree Celsius. Calculate the molar mass of the protein.
A chemist prepares a solution of nickel(II) chloride (NiCly) by measuring out 61.3 umol of nickel(II) chloride into a 200 ml volumetric flask and filling the flask to the mark with water. Calculate the concentration in umol/L of the chemist's nickel(II) chloride solution. Round your answer to 3 significant digits. x 5 ? Explanation Check 2009 Mew Econ Aires Reserved. Terms of Use
. 0.275 L of solution is prepared by dissolving 2.50 g of an unknown molecular compound in enough water. The osmotic pressure of this solution is 1.98 atm at 27 °C. (R = 0.08206 L·atm/mol·K) a) Determine the molar mass of the molecular compound. (7 pts) b) If you need to prepare 0.275 L of AlCl3 solution with the same osmotic pressure of the above solution, what mass of AlCl3 (MW = 133.33 g/mol) would you need to weigh out?