Having minor homework questions or simply want to make sure your homework answers are correct? Then use our free service to get quick answers to your homework questions in mathematics, physics, programming, economics, chemistry and biology. We already have a database of multiple homework questions and answers you can look through . If you can’t find the solutions to your homework problems, then post your homework questions and find a well-formulated answer from a professional within a very short timeframe.
Please save your time and DO NOT send us your full assignments or not precise, well stated questions in mathematics, physics, programming, economics, chemistry or biology as they will be ignored. In this section we can answer only your short questions of qualitative, primary theoretical nature (for FREE!). Use filters to display the questions to a particular subject or section. By entering your e-mail in the box "Search" you can browse the questions posted exclusively by you. Do not worry if you cannot find your question in the list after it has been submitted; every question is being checked by a moderator and appears in the list only after its approval.
2) find the valeue of k if |K 3|
What are the [H+] and [OH-] in a 0.1moldm^-3 solution of a weak acid (Ka = 1x10^-7)?
a) [H+] = 0.1, [OH-] = 1x10^-13
b) [H+] = 0.001, [OH-] = 1x10^-11
c) [H+] = 0.0001, [OH-] = 1x10^-10
d) [H+] = 1x10^-6, [OH-] = 1x10^-8
The answer is C but I want to know why.
If A is an mxp matrix and b is pxn matrix then the order of AB is ..............
write a complete program that prompts the user to enter the side of a hexagon and display its area. the formula for computing the area of a hexagon is Area = (3√3/2 )S^2, where S is the lenght of a side and √3 is 1.732
Calculate the pH of the solution obtained by adding 0.02 lit of 1 mol./lit nitrous acid
(pKa=3.34) to 0.04 lit of 0.5 mol/lit sodium nitrite solution.
Calculate the pH of a buffer mixture containing 10 ml of 0.1 M CH3COOH and 1 ml of 0.1
A hockey puck has a mass of 210 g. If the hockey puck has 73 J of kinetic energy, what is its speed?
A car with a mass of 1500 kg is moving at a speed of 50 km/h. what is its Ek.
In borax bead test of Cu2+, the blue color of the bead is due to?