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scilover
Questions and answers by visitors named
scilover
Questions (25)
The concentration of hydroxide ions in a solution of nitric acid 0.2 M is:
a. 2 x 10-14 M b. 5 x 10-14 M c. 5 x 10-7 M d. 2 x
5 answers
1,804 views
21. Classify the following solutions in order of increasing pH:
a. 0.01 M NaOH b. pure water c. 0.10 M HCl d. 0.05 M NaOH e.
2 answers
651 views
5.6 x 10-6 mol of A and 5 x 10-5 mol of B are mixed in a 200 mL flask. The system is represented by the equation:
2A(G) + B(G)
2 answers
764 views
You work with the following system:
2X(g) <---> Y(g) At, equilibrium, [Y]=3[X]. If K=10, calculate the [Y] at equilibrium.
2 answers
954 views
A chemical system within a sealed 1 L reaction vessel is described by the following reversible reaction equation:
2H2S(g)
3 answers
786 views
You work with the following system:
2X(g) <---> Y(g) At, equilibrium, [Y]=3[X]. If K=10, calculate the [Y] at equilibrium.
3 answers
443 views
Using the following spontaneous reactions, classify the 3 metals involved (Cr, Sn, Al) according to increasing reductant
2 answers
1,096 views
Which one of the following species will react with Sn at standard state conditions?
a) S b) Ag+ c) Cu d) Zn2+
3 answers
668 views
Which one of the following species will react with Sn at standard state conditions?
a) S b) Ag+ c) Cu d) Zn2+ What does it mean
2 answers
1,018 views
Which of the following is the strongest reducing agent?
a) Li+ b) Zn c) Sn d) H2 Is it Li? Can someone please explain what the
1 answer
411 views
Can a solution of CrCl3 be stored in an aluminum container? I did the math part- E= 2.45 (approx)
3 answers
456 views
Which of the following is the strongest reducing agent?
a) Li+ b) Zn c) Sn d) H2 Is it Li? Can someone please explain what the
4 answers
1,914 views
Which pair of ions will be most likely to react at standard state conditions?
a) MnO4- and Sn2+ b) Zn2+ and Cl- c) I- and Cu d)
2 answers
713 views
.012 mol of solid NaOH is added to a 1 L solution of HCl 0.01 M. What is the pH of the solution?
2 answers
702 views
Phosgene (COCl2) is a poisonous gas that dissociates at high temperature into two other poisonous gases, carbon monoxide and
3 answers
1,563 views
3Fe(s) + 4H2O(g) <-> Fe3O4(s) + 4H2(g)
What happens when Fe(s) is added? Would the reaction shift right?
4 answers
2,510 views
CaCO3(s) <-> CaO(s) + CO2(g)
What would happen if CO2 was removed? Would the reaction shift left? Does that mean CaCO3 increases
3 answers
1,525 views
Which of the following pairs of compounds will give a precipitate in a diluted solution?
Question 4 options: A) Cu(NO3)2 and
3 answers
1,953 views
0.80 mol/L of A and B are mixed. They react very slowly to produce C and D as follows:
A(aq) + B(aq) ⇔ C(aq) + 2D(aq) When
3 answers
1,025 views
What happens if sodium acetate (CH3COONa) is added to the following reaction?
CH3COOH H+ + CH3COO- a) [H+] increases b) [H+]
3 answers
2,180 views
A mixture of lead, magnesium, nitrate and chromate ions are present in a solution. What will the precipitate be?
a) MgPb b)
3 answers
2,215 views
In the system A(g) + 2B(g) 2C(g) + 2D(g) H=21 kJ/mol, it is possible to increase the quantity of C by:
a) adding a
5 answers
1,979 views
In order to completely neutralize 0.985 mol of sodium hydroxide, 43.2 mL of an acid is required. The concentration of the acid
2 answers
927 views
If a 0.1 mol/L solution is diluted to 0.01 mol/L, the:
a) concentration of hydrogen ions increases b) pH decreases c) acidity
2 answers
754 views
Is electroplating an industrial electrochemical process? What would be an industrial electrochemical process??
electric generator
1 answer
409 views
Answers (4)
I think kuldeep is right because this is an endothermic reaction and if I want to make the rxn shift to the right, increasing the temp with an endo. reaction will shift right
@bobpursley I don't understand what it means at standard state? Would it be Zn2+
how do u convert for y?
@DrBob222 How do u convert to mg/l?
