Homework Answers
In this image, the red color dashed lines are showing the interaction of the Hydrogen atom of the water molecule with the chloride ions negative charge while the interaction of the oxygen atom of the water molecule with the calcium ions positive charge in blue color. There will be many more water molecules surrounding both the type of ions which will cause the dissolve and dissociation of CaCl2 in water molecules.
Add Answer to:
4. Complete the diagram below to show calcium and chloride ions being surrounded by water when CaCl2 dissolves and...
When 23.6 g of calcium chloride, CaCl2, was dissolved in water in a constant-pressure calorimeter, the...
When 23.6 g of calcium chloride, CaCl2, was dissolved in water in a constant-pressure calorimeter, the temperature rose from 25.0 C to 38.7 C. If the heat capacity of the solution and the calorimeter is 1258 J/C, what is the enthalpy change when 0.710 mol of calcium chloride dissolves in water? The solution process is CaCl2(s) --> Ca2+(aq) + 2Cl–(aq)
When calcium nitrate, Ca(NO32, dissolves in water, it dissociates into its ions. We can represent that...
When calcium nitrate, Ca(NO32, dissolves in water, it dissociates into its ions. We can represent that process by the following equation Ca(NO3)h(s) Ca2(aq) 2NOs(aq) When 1.5 mol calcium nitrate dissolves in water, how many moles of ions should be present in solution? O 9.0 moles of ions O 1.5 moles of ions O 30 moles of ions O 13.5 moles of ions O 45 moles of ions
4. In an experiment, when 23.6 of calcium chloride, CaCl2 were dissolved in water in a...
4. In an experiment, when 23.6 of calcium chloride, CaCl2 were dissolved in water in a coffee- cup calorimeter (at constant pressure), the temperature rose from 25.0°C to 38.7°C. The dissolution process is: CaCiz(s) - Ca2+ (aq) + 2C1-(aq) The heat capacity of the solution and the calorimeter is 1258 J/°C. The molar mass of CaCl2 is 110.98 g/mol. 1) Determine the heat that was absorbed by the solution and calorimeter. (1 point) 2) Determine the heat that was released...
When sodium chloride dissolves in water, the ions dissociate: NaCl (s) --> Na+ (aq) + ...
When sodium chloride dissolves in water, the ions dissociate: NaCl (s) --> Na+ (aq) + Cl- (aq) Write ionic equations, similar to the one above, that describe how NaNO3 and NaCH3COO each dissociate as they dissolve in water. Include heat as a reactant or product in each equation.
When sodium chloride dissolves in water, the ions dissociate: NaCl (s) à Na+ (aq) + Cl-...
When sodium chloride dissolves in water, the ions dissociate: NaCl (s) à Na+ (aq) + Cl- (aq) Write ionic equations, similar to the one above, that describe how NaNO3 and NaCH3COO each dissociate as they dissolve in water. Include heat as a reactant or product in each equation
When an ionic compound dissolves in water, the cations and anions are separated. Ions in solution...
When an ionic compound dissolves in water, the cations and anions are separated. Ions in solution will result in that solution conducting electricity, an electrolyte. Some solutions are strong electrolytes while others are weak electrolytes. 1. What do you think is giving rise to electrical conductivity? ions in a crystal 2. This is a diagram showing ions in a crystal. Draw a diagram showing the particles in 1) strong electrolyte, and 2) weak electrolyte. Pay attention to how the water...
When sodium chloride dissolves in water, the ions dissociate: NaCl (s) Na+ (aq) + Cl-...
When sodium chloride dissolves in water, the ions dissociate: NaCl (s) Na+ (aq) + Cl- (aq) What is the sign of the change in Gibbs free energy (DG) for each process in the forward direction?
When 5.5 g of CaCl2 is dissolved in 1 L of solution, the concentration of CaCl2...
When 5.5 g of CaCl2 is dissolved in 1 L of solution, the concentration of CaCl2 is 0.05 molar (0.05 M CaCl2). The solution is also described as being 0.05 M Ca2+(aq) and 0.10 M Cl−(aq). The same solution could be referenced as [Ca2+] = 0.05 M. The circle represents a unit volume. It can be interpreted as “1 L”. Exploring the Model 12. What do the brackets [ ] mean? 13. Explain why the concentration of chloride is twice...
In aqueous solution cobalt(II) ion is surrounded by 4 water molecules and has a light pink...
In aqueous solution cobalt(II) ion is surrounded by 4 water molecules and has a light pink color. When high concentrations of chloride ion are introduced, a cobalt-chloride complex ion forms that has a distinctive blue color. One way to represent this equilibrium is: Cocl,"(aq) = Co2+ (aq) + 4 CI" (aq) An experiment was run to demonstrate that a dynamic equilibrium exists between these two ions. Starting with a special form of CoC142(aq) where one of the chloride ions was...
When sodium chloride dissolves in water, the ions dissociate: NaCl (s) --> Na+ (aq) + Cl-...
When sodium chloride dissolves in water, the ions dissociate: NaCl (s) --> Na+ (aq) + Cl- (aq) Consider the equation, DG = DH - TDS. For each dissolving process, substitute the signs of DG and DH into the equation and predict the possible sign(s) for the entropy (DS). Explain why you chose this sign(s). Does the sign for entropy change seem to make sense? Explain.
When calcium nitrate, Ca(NO32, dissolves in water, it dissociates into its ions. We can represent that process by the following equation Ca(NO3)h(s) Ca2(aq) 2NOs(aq) When 1.5 mol calcium nitrate dissolves in water, how many moles of ions should be present in solution? O 9.0 moles of ions O 1.5 moles of ions O 30 moles of ions O 13.5 moles of ions O 45 moles of ions
4. In an experiment, when 23.6 of calcium chloride, CaCl2 were dissolved in water in a coffee- cup calorimeter (at constant pressure), the temperature rose from 25.0°C to 38.7°C. The dissolution process is: CaCiz(s) - Ca2+ (aq) + 2C1-(aq) The heat capacity of the solution and the calorimeter is 1258 J/°C. The molar mass of CaCl2 is 110.98 g/mol. 1) Determine the heat that was absorbed by the solution and calorimeter. (1 point) 2) Determine the heat that was released...
When an ionic compound dissolves in water, the cations and anions are separated. Ions in solution will result in that solution conducting electricity, an electrolyte. Some solutions are strong electrolytes while others are weak electrolytes. 1. What do you think is giving rise to electrical conductivity? ions in a crystal 2. This is a diagram showing ions in a crystal. Draw a diagram showing the particles in 1) strong electrolyte, and 2) weak electrolyte. Pay attention to how the water...
In aqueous solution cobalt(II) ion is surrounded by 4 water molecules and has a light pink color. When high concentrations of chloride ion are introduced, a cobalt-chloride complex ion forms that has a distinctive blue color. One way to represent this equilibrium is: Cocl,"(aq) = Co2+ (aq) + 4 CI" (aq) An experiment was run to demonstrate that a dynamic equilibrium exists between these two ions. Starting with a special form of CoC142(aq) where one of the chloride ions was...
Most questions answered within 3 hours.
-
Please use python to explain.
Assume that the variables x and
y refer to strings. Write...
asked 2 minutes ago -
This table shows the US domestic demand and supply schedules
for oranges. Suppose the world price...
asked 2 minutes ago -
Please help me create a CLASS DIAGRAM for this code:
import pygame
from pygame.sprite import Sprite...
asked 3 minutes ago -
The Merriweather Printing Company is trying to decide on the
merits of constructing a new publishing...
asked 23 minutes ago -
29) Insulin is a water-soluble hormone transported in the blood.
Which describes a likely way in...
asked 29 minutes ago -
Harden, Harden, & Harden is a venerable Wall Street stock
brokerage firm. It has its business...
asked 30 minutes ago -
How do we determine the ultimate radioactive decay product of
the uranium-238 series is lead?
asked 34 minutes ago -
> Women’s pulse rates are normally distributed with a mean of
68.5 beats per minute and...
asked 41 minutes ago -
Briefly describe an aspect of the strengths perspective that is
consistent with your own understanding of...
asked 42 minutes ago -
Step by step method of using Sparse Identification of Nonlinear
Dynamics (SINDy) to model your own...
asked 50 minutes ago -
3) What are the typical social structures in a global city?
asked 3 hours ago -
Luther Corporation
Consolidated Balance Sheet
December 31, 2019 and 2018 (in $ millions)
Assets
2019
2018...
asked 3 hours ago