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JUNDY
Questions (25)
There are three isotopes of phosphorus. Only one of them is stable. Calculate the binding energy per nucleon (in MeV) for P-32
1 answer
1,013 views
A solid weak acid is weighed, dissolved in water and diluted to exactly 50.00 ml. 25.00 ml of the solution is taken out and is
1 answer
1,666 views
Calculate Keq for 2 moles of electron(s) in each half-reaction and a standard potential of 0.55 V.
1 answer
909 views
Calculate ΔGo (in J) for 2 moles of electron(s) in each half-reaction and a standard potential of 0.57 V.
1 answer
824 views
A half-cell that consists of a copper wire in 1.00 M CuNO3 solution is connected by a salt bridge to a half cell containing a
1 answer
698 views
What is the oxidation state assigned to Cr in zinc dichromate, ZnCr2O7?
1 answer
1,810 views
Calculate the vapor pressure of Hg at 14 oC (in atm).
Hg(l) ↔ Hg(g) . . . ΔHo = 61.32 kJ and ΔSo = 98.83 J/K
1 answer
729 views
Calculate the average C—C bond strength in cyclopropane (in kJ/mol). Its combustion and the experimental enthalpy of reaction
0 answers
1,196 views
Calculate ΔG (in kJ) at 298 K for some solid ZnF2, 0.055 M Zn2+ and 0.063 M F-(aq).
I found Q to be 2.18e-4, then i implemented
1 answer
1,168 views
A reaction at 3.24 atm consumes 5.10 L of a gas adiabatically (q = 0). Calculate the change in internal energy of the system (in
1 answer
448 views
A reaction at 3.24 atm consumes 5.10 L of a gas adiabatically (q = 0). Calculate the change in internal energy of the system (in
1 answer
492 views
1.578 g of an unknown hydrocarbon (110.7 g/mol) burns in bomb calorimeter in excess oxygen. The heat capacity of the
1 answer
662 views
A reaction at 3.24 atm consumes 5.10 L of a gas adiabatically (q = 0). Calculate the change in internal energy of the system (in
3 answers
939 views
A reaction at 2.43 atm produces 20.0 L of a gas and evolves 75.3 kJ of heat (exothermic). Calculate the change in internal
2 answers
535 views
Calculate the pH during the titration of 10.00 mL of 0.400 M hypochlorous acid with 0.500 M NaOH.
The Ka for HOCl is 3.0 x 10-8
1 answer
492 views
Calculate the pH during the titration of 10.00 mL of 0.400 M hypochlorous acid with 0.500 M NaOH.
The Ka for HOCl is 3.0 x 10-8
5 answers
557 views
Concentrated hydrochloric acid is 38% HCl by weight and has a density of 1.19 g/mL. A solution is prepared by measuring 70 mL of
2 answers
1,102 views
Calculate the pH during the titration of 10.00 mL of 0.400 M hypochlorous acid with 0.500 M NaOH.
The Ka for HOCl is 3.0 x 10-8
0 answers
548 views
Calculate the pH during the titration of 10.00 mL of 0.400 M hypochlorous acid with 0.500 M NaOH.
The Ka for HOCl is 3.0 x 10-8
0 answers
520 views
1)A buffer solution that is 0.10 M sodium acetate and 0.20 M acetic acid is prepared. Calculate the initial pH of this solution.
1 answer
1,013 views
1)A buffer solution that is 0.10 M sodium acetate and 0.20 M acetic acid is prepared. Calculate the initial pH of this solution.
1 answer
1,383 views
1)A buffer solution that is 0.10 M sodium acetate and 0.20 M acetic acid is prepared. Calculate the initial pH of this solution.
1 answer
708 views
Calculate the hydrogen ion concentration, [H+], in 0.00988 M Ba(OH)2. Careful!
1 answer
635 views
The autodissociation of water to H+ and OH- is endothermic. At a higher temperature more of the water molecules have sufficient
1 answer
1,451 views
A weighed amount of sodium chloride is completely dissolved in a measured volume of 4.00 M ammonia solution at ice temperature,
1 answer
2,029 views
Answers (12)
y=(3/2)^x
Yes, that's correct.
It's a limiting reagent problem. 8mol*(64.07 g/mol)=512.56 g 16mol*(34.07 g/mol)=545.12 g Therefore, SO2 is the limiting reagent. Figure out the rest
In an arithmetic series, every term is separated from its neighbours by the same difference. So given an arithmetic sequence that starts with the first value A and has a common difference of D, the first five terms are: 1st term: A 2nd term: A + D 3rd
Don't Include Oxygen in your equation and try it again.
M1V1 = M2V2 (.125L)(10.30M)=(x)(.500M)
a. 3/4 b. 4/8 c. 1/4 d. 2/7
Google it bro
Just multiply all three dimensions to get you volume.
Actually can you help me find the pH at the equilibrium point, my work: HOCl OH- I .004 .004 C -.004 -.004 E 0 0 .01*.400=.004 .008*.5=.004 I don't know what to do next...
Ill post my work
Find the moles of ethanol and the moles of the solution, and divide ethanol by the solution.
