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the balanced equation for the reduction of iron ore to the metal using CO is Fe2O3+3CO(g) -> 2Fe+3CO so what is the maximum of
5 answers
asked by
cheryl
2,363 views
A voltaic cell is constructed with an Ag/Ag+ half-cell and a Pb/Pb2+ half-cell. Measurement shows that thesilver electrode is
5 answers
asked by
anonymous
8,550 views
The pH of a Ba(OH)2 solution is 10.66. What is the hydroxide concentration? If the solution volume is 125ml, how many grams of
4 answers
asked by
ralph
3,639 views
The volume of blood in the body of a certain deep-sea diver is 6.00L. Blood cells make up 55% of the blood volume, and the
5 answers
asked by
vel
3,292 views
What does a negative E cell indicate about a redox reaction?
What does is indicate about the reverse reaction?
3 answers
asked by
anonymous
1,014 views
The voltaic cell reaction NiO2(s)+4H^+(aq)+ 2Ag(s)-->Ni^2+(aq)+2H20(l)+ 2Ag^+ has a E cell= +2.48V. What will the cell potential
4 answers
asked by
Anonymous
1,724 views
the two half-reactions that are used in the direct methanol fuel cell are shown below.
I. 2
3 answers
asked by
concerned chem student
1,564 views
Which group from the periodic table contains two elements that exhibit +2 and +4 oxidation states? 1A, 2A, 3A, 4A, 5A, 6A OR 7A
4
3 answers
asked by
ISA
1,363 views
A saturated solution of Mg(OH)2 has a pH of 10.52. What is the Hydronium concentration? Whats the hydroxide concentration? Is
4 answers
asked by
ron
3,691 views
A gas diffuses only 0.5 times as fast as an oxygen molecule at the same temperature. What is the molecular weight of the gas?
7 answers
asked by
Bob
838 views
What is the molality of a solution that has 80 grams of Benzoic Acid dissolved in 400 mL of ethanol. The density of ethanol is
7 answers
asked by
MICHELLE
498 views
how many grams of calcium nitrate need to be dissolved in 250 mL of water to form a solution that has a freezing temperature of
2 answers
asked by
Anonymous
682 views
which of the following has the highest bugger capacity?
A 0.10M H2PO4-/0.10M HPO4 -2 B 0.50 M H2PO4-/0.10 M HPO 2- C 0.10 M
2 answers
asked by
ameryss
567 views
An experiment calls for 125 mL of 0.105 M NaCl solution. What mass of NaCl is required? What mass of NaCl would be required for
2 answers
asked by
Britany
638 views
How many amperes would be needed to produce 60 g of magnesium during the electrolysis of molten MgCl2 in 2 hours?
3 answers
asked by
Anonymous
792 views
the two half-reactions that are used in the direct methanol fuel cell are shown below.
I. 2
2 answers
asked by
concerned chem student
908 views
for the reaction 2C2H2(g)=>C6H6(l) at 25 C, the standard enthalpy change is -631 kJ and the standard entropy change is -430 J/K.
2 answers
asked by
concerned chem student
689 views
for the reaction 2C2H2(g)=>C6H6(l) at 25 C, the standard enthalpy change is -631 kJ and the standard entropy change is -430 J/K.
3 answers
asked by
concerned chem student
859 views
Calculate the relative concentrations of o-ethylbenzoic acid (pKa 3.79) and potassium o-ethylbenzoate that are needed to prepare
1 answer
asked by
amber
357 views
You are instructed to create 800. mL of a 0.69 M phosphate buffer with a pH of 7.6. You have phosphoric acid and the sodium
3 answers
asked by
Danielle
1,532 views
Titration of 50.0 mL of acetic acid reaches equivalence after delivery of 22.5mL of standardized NaOH 0.21 M.
What is the initial
3 answers
asked by
philip
505 views
What is the value for ∆Soreaction for the following reaction, given the standard entropy values? 2 Al (s) + 3Cl2(g) 2AlCl3(s)
a
2 answers
asked by
gi
746 views
A certain laser uses a gas mixture consisting of 9.0 grams of Hydrogen chloride, 2.0 grams Hydrogen gas, and 165.0 grams of
4 answers
asked by
angelveb
1,578 views
For the simple decomposition reaction below, rate = k[AB]2 and k = 0.30 L/mols.
AB(g) A(g) + B(g) If the initial concentration of
2 answers
asked by
Anonymous
482 views
Which property of group 2 elements ( magnesium to barium) and their compounds increases with an increasing proton (atomic)
2 answers
asked by
areebah
584 views
Which property of group 2 elements ( magnesium to barium) and their compounds increases with an increasing proton (atomic)
1 answer
asked by
areebah
425 views
CaCl2, NaCl, and sugar derived from beet juice are all commonly used in winter to melt ice on streets. At the same molality,
4 answers
asked by
libby
1,217 views
A certain gas is present in a 11.0 \({\rm L}\) cylinder at 1.0 \({\rm atm}\) pressure. If the pressure is increased to 2.0
2 answers
asked by
Froyce
1,282 views