Describe what you expect to happen when the following
solutions are electrlized: aqueous Cu(NO3)2. That is,...
Describe what you expect to happen when the following
solutions are electrlized: aqueous Cu(NO3)2. That is, what are the
electrode reactions? what is the overall reaction? Nitrate ion is
not reduced.
A concentration cell containing aqueous solutions of Cu(NO3)2
and solid copper metal is constructed so that the Cu2+ ion
concentration in the cathode half-cell is 0.66 M. What is the
concentration of the Cu2+ ion in the anode half-cell if the cell
potential for the concentration cell at 25 oC is 0.034 V?
When Aqueous solutions of CaCl2 and AgNO3 (aq),are mixed ,a
reaction takes place producing acqueous Ca(NO3)2 and Solid AgCl
a)How many moles of each are used in the above chemical
equation?
b)Write ionic equations for MgCl2(aq) and AgNO3 (aq)
c)Identify spectator ions for part b
d)Name all compounds in the given complete and balanced
reaction
11)
What are the coefficients in front of
NO3-(aq) and Cu(s) when the
following redox equation is balanced in an acidic solution:
___ NO3-(aq) + ___ Cu(s) →
___ NO(g) + ___
Cu2+(aq)?
Select one:
A. 3, 6
B. 2, 6
C. 2, 3
D. 3, 4
12)
The values of ΔH°f for the three states of
benzene are approximately -22 kcal/mol, -11 kcal/mol, and
20kcal/mol. Which is the value for solid benzene?
Select one:
A. -22 kcal/mol
B. 20...
1. What is the oxidation number for each of the elements in
Cu(NO3)2?
2. What is the oxidation number for each element in MgCr2O7?
3. The oxidation number of
a. any substance is the charge of the substance
b. an uncombined element is zero
c. hydrogen is +2 when combined with nonmetals
d. none of the above is correct
4. The oxidation numbers of ______ are equal to their ionic
charges.
5. The term oxidation can be used to describe...
1.0 mol of Cu(NO3)2 is dissolved in 1000 g of water. What is the
molality of the solution for use in colligative property equations?
The answers are 1, 2, 3, 4, or cannot be determined.
If 3.35 g Cu(NO3)2 are obtained from allowing 1.46g of Cu to
react with excess HNO3--
How many grams of copper nitrate are formed from 1.46 g
copper?
What is the percent yield of copper nitrate for this
reaction?