Lv 43,928 points

# a.m.

• ### What volume of 0.250 M NaOH is required to reach the equivalence point with 18.49mL of 0.200M H2SO4?

What volume of 0.250 M NaOH is required to reach the equivalence point with 18.49mL of 0.200M H2SO4?

(assume the 2 protons disassociate completely in H2SO4)

• ### Calculate the pH of the solution...?

Calculate the pH of the solution by mixing 50.00 mL of 0.2000 N NH3 (Kb = 1.8 x 10^-5) with 10.00mL of 0.1000 N HCl.

• ### the Ka of acetic acid is 1.8 x 10^-5. what is the pH of 10mL of a 5% solution?

the Ka of acetic acid is 1.8 x 10^-5. what is the pH of 10mL of a 5% solution? What is the pH of the solution if you now add 30 mL of water?

• ### How can the rate constant be determined from the graphs?

How can the rate constant be determined from the graphs?

and

Does the initial concentration affect the overall reaction order?

• ### how can i know which theme i am currently using on my tumblr?

i want to change the theme but i really like the one i have now so i want to be able to go back to it later in case

• ### what's the equivalence point?

what volume of 0.250 N NaOH is required to reach the equivalence point with 18.49 mL of 0.200 M H2SO4? Assume dissociates completely.

• ### best way to minimize scarring?

please tell me everything you know!

just had my surgery today & i so i'm doing research because so i can be prepared! :]

it's on my back and the doctor said it'll stretch to about an inch thick, and its like 6 inches long :(

• ### why does heat always go from hot to cold?

i know that the 2nd law of thermo says that the entropy of the universe is always increasing, but why exactly would it go from hot (less ordered) to cold (more ordered) then?

• ### ideas for good/inspirational/entertaining speakers to come speak at a university?

just trying to brainstorm some ideas!

pretty well known college: UCLA

thank you so much for your help!(:

• ### why/how is degeneracy removed in an octahedral crystal field? what happens to d orbital energies..?

in square planar crystal fields.

i know for the octahedral field it splits into a higher and lower energy:

___ ___

___ ___ ___

but how do i explain why the degeneracy is removed?

• ### how to determine the color of a complex ion?

for instance,

[Co(H20)6]3+ ion

and

[Cd(NH3)6]2+ ion

please just explain to me how i know if they have a color or if they are colorless. thank you.

• ### hybridization of the C2F2 molecule?!?!?

how would it hybridize and how would i sketch the hybrid orbitals??

• ### how do you set times new roman as a default font type in pages on a mac?

it is currently helvetica but i would like it to be times new roman automatically

• ### do 3s and 3p orbitals have same energy levels?

what about 2s and 3s orbitals?

• ### what is the limit of (cos2x-cosx)/x as x approaches 0?

i'm not quite sure where to start..

• ### how do i begin this chemistry problem?

What mass of titanium(IV) chloride could be formed from the reaction of 3.00 g titanium and 8.00 grams of chlorine gas (Cl2)?

Determine the mass of excess reactant remaining when 20.30 grams of ZnS and are reacted with 36.8 grams of oxygen.

2ZnS + 3O2 → 2ZnO + 2SO2

how do i do this?!? ahhh :(