Chay

Claim: For all theta such that -pie/2<theta<pie/2 the following holds true: (1+tan(theta))^2=1/cos(theta)

Consider a 0.10 M solution of a weak polyprotic acid (H2A) with the possible values of Ka1 and Ka2 given below, calculate the contributions to [H3O+] from each ionization step. Part 1: Ka1=1.0*10^-4 Ka2=1.0*10^-5 Part 2: Ka1=1.0*10^-4 Ka2=1.0*10^-6

If the water temperature was 30.0C and the atmospheric pressure was 753 torr. What volume of hydrogen gas would you expect to collect if you reacted 0.083g of Ca metal with HCl?

Let f(x)=1/x+9 and h(x)= 1/ x-9 find

How much power is required to raise a 30 kg creat with a vertical distance of 6m in a time of seconds