A) Calculate the molality of a sucrose solution made by dissolving 73.1 grams sucrose into 55.3...
A) Calculate the molality of a sucrose solution made by dissolving 73.1 grams sucrose into 55.3 grams water. The molar mass of sucrose is 342.2 g/mol. Record your answer in scientific notation using 3 significant figures. Use * for the multiplication symbol.
B) A sodium hydroxide solution that contains 55.5 grams of NaOH per L of solution has a density of 1.14 g/mL. Calculate the molality of the NaOH in this solution. Record your answer to 2 decimal spaces.
C) Calculate the concentration in ppm of lead in a solution that contains 198.7 mg Pb per 4.47 kg of solution. Record your answer to the nearest whole number.
D) What is the concentration of magnesium bromide, in ppm, if 104.48 g MgBr2 is dissolved in 7.82 L water. Record your answer in scientific notation to 3 significant figures.
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A) Calculate the molality of a sucrose solution made by
dissolving 73.1 grams sucrose into 55.3...
Calculate the molality of a sucrose solution made by dissolving 23.1 grams sucrose into 83.6 grams...
Calculate the molality of a sucrose solution made by dissolving 23.1 grams sucrose into 83.6 grams water. The molar mass of sucrose is 342.2 g/mol. Record your answer in scientific notation using 3 significant figures. Use * for the multiplication symbol.
What is the concentration of bromide, in ppm, if 169.32 g MgBr2 is dissolved in 1.47...
What is the concentration of bromide, in ppm, if 169.32 g MgBr2 is dissolved in 1.47 L water. Record your answer in scientific notation to 3 significant figures.
Question 7 2 pts Molality An anti-freeze solution is prepared by dissolving 25.5 g of ethylene...
Question 7 2 pts Molality An anti-freeze solution is prepared by dissolving 25.5 g of ethylene glycol (C2H602) in 769.0 g water to make 775 mL of solution? Input numbers only, with correct number of significant figures. Do not use scientific notation. a) What is the molarity of the solution? Methylene glycol b) What is the molality of the solution? methylene glycol c) What is the density of the solution? g/mL Il Proctorio is sharing your screen. Stop sharing Hide
Determine the mass (in g) of each sucrose solution that contains 19 g of sucrose. 4.2...
Determine the mass (in g) of each sucrose solution that contains 19 g of sucrose. 4.2 %% sucrose by mass Express your answer using two significant figures. 3.2 %% sucrose by mass Express your answer using two significant figures. 13.3 %% sucrose by mass Express your answer using two significant figures.
Calculate the molality and mole fraction of a solution made by dissolving 8 gm of (Molar...
Calculate the molality and mole fraction of a solution made by dissolving 8 gm of (Molar mass of NaOH = 40 g / mol Q.2 pure NaOH in 200 ml of water
An aqueous solution contains 31% HCl by mass. Calculate the molality of the solution. Express your answer using two sign...
An aqueous solution contains 31% HCl by mass. Calculate the molality of the solution. Express your answer using two significant figures. Calculate mole fraction of the solution. Express your answer using two significant figures.
A solution was prepared by dissolving 42.0 g of KCl in 225 g of water. Calculate...
A solution was prepared by dissolving 42.0 g of KCl in 225 g of water. Calculate the mole fraction of the ionic species KCl in the solution. Express your answer to three significant figures, do not include units, and do not use scientific notation.
A solution made by dissolving 85.0 g f sucrose (Molar mass. 342.3 g/mol) in 515 go...
A solution made by dissolving 85.0 g f sucrose (Molar mass. 342.3 g/mol) in 515 go acetic acid at 25 degree C froze at 14.95degreeC. Freezing point of the pure acetic acid is 16.90degreeC.Density of acetic acid is 1.05 g/ml. at 25 degree C. Answer the following and show your work in the space provided. Molality of sucrose solution = K_i of acetic acid = 93.42 g of an unknown non-volatile, non-electrolyte solute was dissolved in 850.g of acetic acid....
a solution of phosphoric acid with a molality of 7.435 A solution of phosphoric acid with...
a
solution of phosphoric acid with a molality of 7.435
A solution of phosphoric acid with a molality of 7.435 m has a density of 1.780 g/mL. What is the concentration of this solution? Give you answer to four significant figures and don't forget your units Answer:
Could please help me with my homework? Thanks in advance! A solution is made by dissolving...
Could please help me with my homework?
Thanks in advance!
A solution is made by dissolving 13.5 g of glucose (C_6H_12O_6) in 0.100 kg of water. What is the mass percentage of solute in this solution? What is the molarity of this solution? Assume that the density of approximately 1.00 g/mL A solution with a density of 0.876 g/mL contains 5.0 g of toluene (C_7H_8) and 225 g of benzene (C_6H_6). Calculate the molarity of the solution. A 2.5-g sample...
Question 7 2 pts Molality An anti-freeze solution is prepared by dissolving 25.5 g of ethylene glycol (C2H602) in 769.0 g water to make 775 mL of solution? Input numbers only, with correct number of significant figures. Do not use scientific notation. a) What is the molarity of the solution? Methylene glycol b) What is the molality of the solution? methylene glycol c) What is the density of the solution? g/mL Il Proctorio is sharing your screen. Stop sharing Hide
A solution made by dissolving 85.0 g f sucrose (Molar mass. 342.3 g/mol) in 515 go acetic acid at 25 degree C froze at 14.95degreeC. Freezing point of the pure acetic acid is 16.90degreeC.Density of acetic acid is 1.05 g/ml. at 25 degree C. Answer the following and show your work in the space provided. Molality of sucrose solution = K_i of acetic acid = 93.42 g of an unknown non-volatile, non-electrolyte solute was dissolved in 850.g of acetic acid....
a
solution of phosphoric acid with a molality of 7.435
A solution of phosphoric acid with a molality of 7.435 m has a density of 1.780 g/mL. What is the concentration of this solution? Give you answer to four significant figures and don't forget your units Answer:
Could please help me with my homework?
Thanks in advance!
A solution is made by dissolving 13.5 g of glucose (C_6H_12O_6) in 0.100 kg of water. What is the mass percentage of solute in this solution? What is the molarity of this solution? Assume that the density of approximately 1.00 g/mL A solution with a density of 0.876 g/mL contains 5.0 g of toluene (C_7H_8) and 225 g of benzene (C_6H_6). Calculate the molarity of the solution. A 2.5-g sample...
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