Sven
This page lists questions and answers that were posted by visitors named Sven.
Questions
The following questions were asked by visitors named Sven.
I just completed a titration lab and the balanced equation is (8H^+)+MnO4^- + 5Fe (^2+) ---> Mn + 4 H20 + 5 Fe(^3+) I'm supposed to calculate the moles of permanganate, Fe^2+ and the mass of iron from the sample. The volume of permanganate is 33.5, and th...
18 years ago
4NH3+5O2--->4NO+6H2O determine the amount of oxygen needed to produce 1.2x10^4mol of nitrogen monoxide gas
14 years ago
What volume (in ml) of carbon dioxide will form if 19.3 ml of O2 are reacted acccording to the following balanced equation: 2CO(g) + O2(g) --> 2CO2(g) Assume an excess of CO and that all are at the same temperature and pressure.
14 years ago
Which of the following gases will occupy the smallest volume at 300 K and 760 torr and why? 80 g diatomic oxygen 80 g methane 80 g hydrogen fluoride
14 years ago
How many grams of LiH are needed to fill a 3.3 L life belt with hydrogen gas at 0.93 atm and 28.5°C?
14 years ago
the expression (4x^2-3x+1)-(x^3+2x+7) what is the coefficient of the x term in the simplified expression? what is an equation of a line parallel to the line with equation 2 y=14-6x a.y=-6x+18 b.y=-3x-9 c.y=6x+3 d.y=3x+8 Solve linear system, which substitu...
12 years ago
1. Which of the following statements does not describe a difference between the DNA of prokaryotes and the DNA of eukaryotes ? a.prokaryotic DNA is shorter and less complex than eurkaryotic DNA b. Prokaryotic DNA chains have two nucleotides, eukaroyotic D...
12 years ago
Metal sphere 1 has a positive charge of 7.00nC . Metal sphere 2, which is twice the diameter of sphere 1, is initially uncharged. The spheres are then connected together by a long, thin metal wire. What are the final charges on each sphere?
11 years ago
Answers
The following answers were posted by visitors named Sven.
Sorry that Mn is 2+ and I forgot to add that its a redox titration. Thanks!
18 years ago
Thank you so much. I was wondering why I didn't have a mole ratio. But is 5 X 55.85 the molar mass of Fe, because if so, i'm getting a huge percentage error, which isn't right because it's supposed to be around 20%. because the pills are technically 325 m...
18 years ago
40.2 mg of iron that is
18 years ago
Bobby is correct on all answers except 8 is actually A
6 years ago
correct
5 years ago
For the people who don't know the last two questions you have to write. These are answers D C B B D B D A
5 years ago
Mia look just shut up
4 years ago