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Sven
Questions and answers by visitors named
Sven
Questions (14)
I just completed a titration lab and the balanced equation is (8H^+)+MnO4^- + 5Fe (^2+) ---> Mn + 4 H20 + 5 Fe(^3+)
I'm supposed
11 answers
2,262 views
4NH3+5O2--->4NO+6H2O
determine the amount of oxygen needed to produce 1.2x10^4mol of nitrogen monoxide gas
2 answers
960 views
What pressure (atm) is exerted by a column of ethanol 49.0 cm high? The density of ethanol is 0.789 g/cm3 and 9.8m/s2 as your
1 answer
451 views
A 143.8 cm3 bubble under the ocean at 2.8 atm and 14.3oC surfaces to 1.0 atm and 22.6oC. What is the new volume (in cm3)?
1 answer
349 views
At what temperature (oC) will a gas sample occupy 9.8 L if it originally occupies 14.2 L at 25.9oC?
1 answer
458 views
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
2 answers
510 views
At 36.4°C a sample of ammonia gas exerts a pressure of 8.3 atm. What is the pressure when the volume of the gas is reduced to
2 answers
490 views
A sample of nitrogen gas (N2) kept in a container of volume 11.7 L and at a temperature of 23.3°C exerts a pressure of 2.6 atm.
2 answers
508 views
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
2 answers
1,161 views
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?
1 answer
307 views
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
2 answers
511 views
1. Which of the following statements does not describe a difference between the DNA of prokaryotes and the DNA of eukaryotes ?
a.
3 answers
1,974 views
A 3.00-cm-diameter parallel-plate capacitor with a spacing of 0.800mm is charged to 300V . What is the total energy stored in
1 answer
871 views
Metal sphere 1 has a positive charge of 7.00nC . Metal sphere 2, which is twice the diameter of sphere 1, is initially
4 answers
3,681 views
Answers (7)
Mia look just shut up
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
correct
Bobby is correct on all answers except 8 is actually A
40.2 mg of iron that is
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 mg
Sorry that Mn is 2+ and I forgot to add that its a redox titration. Thanks!
