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Questions (14)
Use u-substitute to compute the following:
A) ∫((x)/((x^2)+5)) dx B) ∫((sin(ln(x)))/(x)) dx
1 answer
414 views
a) 45.02% of the sample remains after 85 days. Consider how you can use the percent of Ir-192 remaining and the number of days
3 answers
647 views
What is the activity of a 18.9 μCi sample of carbon-14 in becquerels?
1 answer
2,210 views
An open top box with a square base is to be made so that it holds 3 cubic feet. Assuming the material on the base costs $3 per
1 answer
677 views
Balance the following equation in basic solution. Phases are optional.
I{-}+IO4{-} --> I3{-}+IO3{-}
1 answer
1,803 views
Elemental calcium is produced by the electrolysis of molten CaCl2.
a) What mass of calcium can be produced by this process if a
6 answers
7,108 views
During the discharge of an alkaline battery, 4.50 g of Zn is consumed at the anode of the battery.
a) What mass of MnO2 is
1 answer
3,382 views
A car braked with constant deceleration of 16 ft/sec^2 takes 200 ft to come to a complete stop. How fast was the car traveling
0 answers
869 views
You are designing a 1000 cubic cm closed cylindrical can with radius r and height h. Assume that there is no waste in cutting
1 answer
675 views
The strength, S, of a rectangular wooden beam is proportional to its width times the square of its depth. Find the dimensions of
3 answers
6,513 views
derivative of h(x)= 3(√x) - x(√x)
5 answers
416 views
A critical reaction in the production of energy to do work or drive chemical reactions in biological systems is the hydrolysis
2 answers
995 views
A reaction A(aq)+B(aq)<-->C(aq) has a standard free-energy change of –3.35 kJ/mol at 25 °C. What are the concentrations of A,
2 answers
3,888 views
When the oxide of generic metal M is heated at 25.0 °C, only a negligible amount of M is produced. MO2(s)<-->M(s)+O2(g) DeltaS=
4 answers
1,171 views
Answers (11)
I should have mentioned that the initial mass is 1.75g
You're welcome.
Close. You see how you have 4H^+? To get rid of that you need to add 4OH^-. That will make it into 4H2O. But you have to add 4OH^- to both sides of the equation. Then the H2O will cancel out leaving the OH^- on the left and 2H2O on the right.
Also, I will add that this is a basic solution. A basic solution cannot have an excess of H+. That would make it acidic so you have to add OH^- to both sides of the final equation.
In which case the only one you would need to multiply to get en equal amount of e^- would have to be the half reaction of Cu^2+
Cu^2+ --> Cu^+ To balance that out you don't need to add 2e^-
Do you mean 2√3 x 2√6?
Is it required for me to use the chain rule on x(√x)?
Do you mean : 3/(2√x) - (3/2) √x. ?
I looked at one of your description of one of the previous questions asked that are similar to mine and it made perfect sense. Thanks!
It's the first time I ask this question on here actually.
