SMARTscience

Np, and um I'll try it over again O_o but this is a lab not homework:(

Np, and um I'll try it over again O_o but this is a lab not homework:(

Could someone please help, it's been a while.

Thanks for the reply, I'm in highschool;) and thanks for taking your time. The problem is, I got a whole work load this semster =.=

Hi, I really don't understand this lab and I need help with it:( 1. Add 10 drops of 0.050mol/L hydrochloric acid to a 100 ml beaker. 2.Transfer a small amount of indicator to the acid sol'n by placing one drop of phenolphthalein sol'n on a watch glass. Touch the drop with the glass rod. 3.Place the beaker on the white sheet of paper. 4. Add the saturated sol'n of calcium hydroxide, drop by drop, to the hydrochloric acid sol'n until the sol'n turns a permanent pale pink. 5. Record the # of drops of CA(OH)2 added. 6. Conduct 3 trials so that an average can be taken. I) Determine the average # of drops of CA(OH)2 sol'n that you needed to neutralize 10 drops of 0.050 mol/L HCl (aq) II) Use the balanced chemical eqn for the neutralization of HCl (aq) with CA(OH)2 to determine the concetration of the hydroxide ion, in moles per litre. III) Use the concentration of the hydroxide ion to determine the concentration of CA(OH)2 in moles per litre. IV) Calculate KSP for CA(OH)2. My friend agreed that he would do this lab so I really don't know how to do it. But he had no idea, and I don't want to fail. So can anyone help me out? I just need to understand how to do it, and I'll do it on my own if you can give me the steps please, thanks alot in advance I'd appreciate it if the help was provided fast.

Ay, I suck at chem so I joined this site hopefully it'll help me, thanks in advance for any help m8s.