Homework Answers
Since we know that
molarity = no of moles / volume in L
no of moles = 0.375 mol
volume in L = 0.500 L
Molarity = 0.375/0.500 = 0.750 M
[Cl-] = 2*molarity of MgCl2 = 2*0.750 = 1.50 M
Answer:- 1.50 (Answer have three significant figures)
Please give me thumbs up
Add Answer to:
Question 9 5 points Calculate the concentration(M) of chloride ion in a solution formed by dissolving...
A: What is the molar concentration of a solution formed by dissolving 2.95 grams of potassium...
A: What is the molar concentration of a solution formed by dissolving 2.95 grams of potassium bromide in 50.0 mL of water? Round your answer to the correct number of significant figures. B: If you have a graduated cylinder containing 75.0 mL of a 4.50 M calcium chloride solution, how many grams of calcium chloride are dissolved in the solution? Round your answer to the correct number of significant figures. C: Which of the following units of concentration would be...
QUESTION 40 You are experimentally determining the enthalpy of solution for an ionic compound using a...
QUESTION 40 You are experimentally determining the enthalpy of solution for an ionic compound using a coffee cup calorimeter. When you dissolve 32.14 g of the ionic compound (molar mass - 138 g/mol) in 409 g water in a coffee cup calorimeter, the temperature changes from 21.74°C to 15.89 °C. Calculate the enthalpy of solution (the enthalpy change when dissolving the ionic compound in water) in /mol. Use 4,184 18°C) for the specific heat capacity of the solution. Give your...
1. Calculate the hydronium ion concentration and the hydroxide ion concentration in lime juice with a...
1. Calculate the hydronium ion concentration and the hydroxide ion concentration in lime juice with a pH of 2.0. Report answers in scientific notation and 2 significant figures Hydronium ion concentration = Hydroxide ion concentration = 2. What are the hydronium and hydroxide ion concentrations in a solution whose pH is 6.52? Report answers in scientific notation and 2 significant figures Hydronium ion concentration = Hydroxide ion concentration = 3. Which is the stronger acid, NH4+ or HBrO? Hint: Compare...
f) What is the concentration in %(m/v) of a solution prepared by dissolving 50.0 g of...
f) What is the concentration in %(m/v) of a solution prepared by dissolving 50.0 g of sucrose in 220 mL of ethanol. g) What is the concentration in ppm of a solution that contains 0.234 g of lactic acid dissolved in 350 mL of aqueous solution? h) How many grams of glucose are present in 850 mL of a 4.25%(m/v) glucose solution. 8. The following questions involve calculations of equivalents or miliequivalents. a) How many equivalents of sodium ion and...
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)...
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.
Calculating Concentration a) Calculate the mass percent (m/m) of a solution prepared by dissolving 49.78 g...
Calculating Concentration a) Calculate the mass percent (m/m) of a solution prepared by dissolving 49.78 g of NaCl in 170.1 g of H2O. Express your answer to four significant figures. b) Vinegar is a solution of acetic acid in water. If a 205 mL bottle of distilled vinegar contains 31.5 mL of acetic acid, what is the volume percent (v/v) of the solution? Express your answer to three significant figures. c) Calculate the mass/volume percent (m/v) of 13.0 g NaCl...
the concentration in %(m/v) of a solution prepared by dissolving 50.0 sucrose in 220 mL of...
the concentration in %(m/v) of a solution prepared by dissolving 50.0 sucrose in 220 mL of ethanol. hat is the concentration in ppm of a solution that contains 0.234 g of lactic acid dissolved in 350 mL of aqueous solution? h) How many grams of glucose are present in 850 mL of a 4.25%(m/v) glucose solution. 8. The following questions involve calculations of equivalents or miliequivalents. a) How many equivalents of sodium ion and sulfate ion are present in a...
A solution is prepared by dissolving aluminum chloride in water and diluting to 500.0 mL. If...
A solution is prepared by dissolving aluminum chloride in water and diluting to 500.0 mL. If this solution contains 44 ppm aluminum ions, the concentration of chloride ions is ppm. A) 11 B) 22 C) 44 D) 88 E) 132 Red-blood cells comprise an outer semi-permeable membrane, and are subject to osmosis. If local solute concentration inside the cells is higher than that outside: A) no net solvent migration will occur B) solvent will migrate from inside the cell to...
A solution is made by dissolving 25.7 g of copper(II) chloride, CuCl2, in enough water to...
A solution is made by dissolving 25.7 g of copper(II) chloride, CuCl2, in enough water to make exactly 100 mL of solution. Calculate the concentration (molarity) of CuCl2 in mol/L (M). M CuCl2
QUESTION 40 You are experimentally determining the enthalpy of solution for an ionic compound using a coffee cup calorimeter. When you dissolve 32.14 g of the ionic compound (molar mass - 138 g/mol) in 409 g water in a coffee cup calorimeter, the temperature changes from 21.74°C to 15.89 °C. Calculate the enthalpy of solution (the enthalpy change when dissolving the ionic compound in water) in /mol. Use 4,184 18°C) for the specific heat capacity of the solution. Give your...
f) What is the concentration in %(m/v) of a solution prepared by dissolving 50.0 g of sucrose in 220 mL of ethanol. g) What is the concentration in ppm of a solution that contains 0.234 g of lactic acid dissolved in 350 mL of aqueous solution? h) How many grams of glucose are present in 850 mL of a 4.25%(m/v) glucose solution. 8. The following questions involve calculations of equivalents or miliequivalents. a) How many equivalents of sodium ion and...
the concentration in %(m/v) of a solution prepared by dissolving 50.0 sucrose in 220 mL of ethanol. hat is the concentration in ppm of a solution that contains 0.234 g of lactic acid dissolved in 350 mL of aqueous solution? h) How many grams of glucose are present in 850 mL of a 4.25%(m/v) glucose solution. 8. The following questions involve calculations of equivalents or miliequivalents. a) How many equivalents of sodium ion and sulfate ion are present in a...
Most questions answered within 3 hours.
-
Where is the error in this code sequence?
String s1 = "Hello";
String s2 = "ello";...
asked 10 months ago -
Financial data for Joel de Paris, Inc., for last year
follow:
Joel de Paris, Inc.
Balance...
asked 10 months ago -
Consider this reaction:
Al2(SO4)3 (aq)+ BaCl3
(aq) Al2Cl6 (aq)- +
3BaSO4(s) . What is the...
asked 10 months ago -
Suppose that Savneet is considering increasing her
recent random sample from 20 car rentals to 40...
asked 10 months ago -
Trucks arrive at an unloading terminal at an average rate of 120
per hour.
Trucks arrive...
asked 10 months ago -
Why are methanol and ethanol completely soluble in water while
octanol is not very little soluble....
asked 10 months ago -
A facilities manager at a university reads in a research report
that the mean amount of...
asked 10 months ago -
When the CuSO4 is rehydrated by adding water to the anhydrous
compound, is this an endothermic...
asked 10 months ago -
A ray of sunlight is passing from diamond into crown glass; the
angle of incidence is...
asked 10 months ago -
A block of mass 0.249 kg is placed on top of a light, vertical
spring of...
asked 10 months ago -
how do the kidneys compensate in the presences of acidosis
a) trigger hyperventilate
b) reserve acid...
asked 10 months ago -
Question 501 pts
The rental rate of capital to the firm increases. Which of the
following...
asked 10 months ago