UN
This page lists questions and answers that were posted by visitors named UN.
Questions
The following questions were asked by visitors named UN.
The concentration and volume of reagents combined in each trial are listed in the table below: Trial 00020 M 00020 M H2O(mL) Fe(NO3)3mL) KSCN (mL) 1 5 2 3 2 5 3 2 3 5 4 1 4 5 5 0 Initially (right after combining and before any reaction occurs) the concent...
17 years ago
What is the pH of the solution created by combining 2.80 mL of the 0.10 M NaOH(aq) with 8.00 mL of the 0.10 M HCl(aq)? with 8.00 mL of the 0.10 M HC2H3O2(aq)? mL of NaOH pH w/HCl pH w/HC2H3O2 2.80 ? ? okay, so i tried m1v1=m2v2 and when i got m2 i would i...
17 years ago
Balance the equation: Note: If a chemical species coefficient is "1" then "1" needs to be entered in the field before that species. __MnO4(–) + __H(+) + __C2O4(2–) __Mn(2+) + __H2O + __CO2 i need a check pls
17 years ago
Answers
The following answers were posted by visitors named UN.
i see what my problem is, thanks i got it.
17 years ago
iam confused with the ice table could you show me because my answer .0002 is incorrect thanks.
17 years ago
thanks but i figured how to do this
17 years ago
i inputed: -Log(5.20 x 10-4) ph=3.28 but its incorrect?
17 years ago
okay, i got 2.8E-4 mols of NaOH and 8e-4 MOLS of acetic acid, so do i just plug in mols of hcl into -log(hcl)?
17 years ago
need the check pls
17 years ago
thats not the ansr, need a check
17 years ago
on this one i got:2,16,2,2,8,4 but it say that the second(2)which is the coefficent for C204(2-) and the 4 on the co2 is wrong ? what might be the problem?
17 years ago
i got 1,8,1,1,4,1 but the second coeffient(one) and the last coeffient(one) are incorrect. im not sure what goes for ____Fe(2+) and ___Fe(3+)
17 years ago