7. A 0.1375-g sample of solid magnesium is burned in a constant-volume bomb calorimeter that has a heat capacity of 3024 J/ °C. The temperature increases by 1.126 °C. Calculate the heat given off by the burning Mg, in kJ/g and in kJ/mol.

Q: Which microscopic representation best represents a solution?

A: A homogeneous mixture in which two or more substances are mixed is termed as a solution. We have…

Q: Identify the solutes and solvents in the following solutions. (a) 80-proof ethyl alcohol (40%…

A: The solutes and solvents in the following solutions has to be given,

Q: draw an atomic/molecular level representation of what you think the solute (KI) looks like before…

A: The solute KI is an ionic compound. An ionic compound is also known as salt.

Q: Describe how to prepare 100.00ml of a 0.250M sodium chloride solution using sodium chloride powder.

A: Volume of solution = 100 mL OR 0.1 L

Q: Indicate whether the following statement is true or false.   The solubility of a solute is…

A: On increasing the temperature of the solvent, they gain thermal energy.

Q: compare and contrast a saturated and a supersaturated solution

A: Saturated solution = A saturated solution is a solution which cannot dissolve anymore amount of…

Q: Freezing point depression can be used to experimentally determine the molar mass of a solute in…

A: Given that: Boiling point of pure solvent (T0 ) = 100°CKb = 0.512 °C kg mol-1Mass of solution =…

Q: What is an electrostatic attraction and how can you tell if an unknown substance that is soluable in…

A: We have asked to explain electrostatic attraction and how will you decide whether the water soluble…

Q: The ionic substance potassium dichromate dissolves in water. The forces between potassium dichromate…

A: We are given that potassium dichromate is an ionic substance and is dissolves in water. We need to…

Q: solute will have the lowest freezing

A:

Q: A certain tonic compound X has a solubility in water of 32.8 at 10. "C. Calculate the greatest mass…

A: Given : solubility = 32.8 g/Litre  Temperature = 10 °C = 283 K

Q: Which of the following is not a colligative property of a solution?

A: Properties that depends on the number of particles in the solution are called colligative…

Q: Why do molecular solids dissolve in water?

A: Many solids dissolve in water readily.

Q: alculate the mass percent of a solution made from 15.5g of NaCl and 375.4g of H2O. Please be sure to…

A: When solute and solvent are mixed, they form a solution.

Q: Convert 22.3ml to quarts

A: Conversion Factor 1 mL = 0.00106 quarts Given value of volume = 22.3 mL

Q: A single crystal was added to a clear colorless solution, the crystal disappeared. What type of…

A: An unsaturated solution is a solution that can dissolve more solute at a given temperature and…

Q: What is the freezing point of a solution that contains 1.2 mol Ki dissolved in 1.00 kg of water?…

A:

Q: What is the percentage by mass of a solution made by dissolving 14.8 g of sodium surface in 23.1 g…

A: Given mass of sodium sulfate = 14.8g mass of water = 23.1 g

Q: We dissolve 2.15 g of sugar in 260.9 g water.  What is the mass percent of sugar in the solution?

A:

Q: Which type of concentration is calculated when the grams of solute is divided by the grams of the…

A: Given Formula  Formula = grams of solutegrams of solution ×1000000 Type of concetration calculated =…

Q: How much stock solution AND water is needed to dilute a 2.5M solution onto a 350mL 0.75M solution?

A:

Q: Calculate the volume in liters of a 0.232M potassium dichromate solution that contains 150. g of…

A: The number of moles of potassium dichromate, K2Cr2O7, equivalent to 150 g of potassium dichromate,…