Chlorine and Carbon monoxide gases are mixed in a 1.00L container and equilibrium is established. Initially, 1.5 mol of chlorine was present with excess carbon monoxide. At equilibrium, 0.80 mol of COCl2 was found. Calculate the percent reaction. Write the equilibrium law.
Posted 5 years ago by bobbie2245 in Chemistry 30 | 1 answers
#equilibrium #chemistry 30
3 NO2(g) + H2O(l) → 2 HNO3(l) + NO(g) ΔrH = -72.0 kJ, calculate the molar enthalpy of reaction, rH for: NO2(g)
Posted 5 years ago by in Chemistry 30 | 1 answers
#enthalpy #thermochemistry
dentify each of the following unbalanced reactions as a redox-reaction or a non-redox reaction.
Posted 5 years ago by emmabrandle in Chemistry 30 | 0 answers
#electrochemistry
The average current produced by the cell, when it operates for 30.0 min and consumes 1.00 g of the anode, is Answer A
Posted 5 years ago by Emmab in Chemistry 30 | 1 answers
#electrochemistry #chemistry 30
A sample of pure tin metal is dissolved in nitric acid to produce 20.00 mL of solution containing Sn2+. When this tin solution is titrated, a total of 39.8 mL of 0.140 mol/L KMnO4is required to reach the equivalence point.
b. What is the concentration of the Sn2+ solution?
Posted 5 years ago by love in Chemistry 30 | 1 answers
#chemistry 30 #electrochemistry #half reactions
equation for chemical reaction for acids
Posted 4 years ago by jsmth in Chemistry 30 | 1 answers
#chemistry 30 #half reactions
1A(g)+3B(g)<->2C(g)
2.00 mil of A and B are placed in a 500ml container at equilibrium C was found to be 0.16mol/L has formed. Calculate the equilibrium constant for formation of C.
Posted 4 years ago by Chemboy in Chemistry 30 | 1 answers
#redox unit
you have an HCI solution with a olarity of 0.0045M. What is the [H+]?
Posted 4 years ago by in Chemistry 30 | 2 answers
#chemistry 30
Consider the following equilibrium system:
2NO(g)+Cl2(g)?2NOCl(g) Kc=4.7×103A sample mixture is tested and it is determined to contain all three entities in the following concentrations:
2NO(g)=0.53 mol/L
Cl2(g)=0.11 mol/L
2NOCl(g)=0.021 mol/L
From this information it can be inferred that the system
Consider the following equilibrium system:
2NO(g)+Cl2(g)?2NOCl(g) Kc=4.7×103A sample mixture is tested and it is determined to contain all three entities in the following concentrations:
2NO(g)=0.53 mol/L
Cl2(g)=0.11 mol/L
2NOCl(g)=0.021 mol/L
From this information it can be inferred that the system
Consider the following equilibrium system:
2NO(g)+C<Posted 4 years ago by nandini in Chemistry 30 | 0 answers
#chemistry 30 #equilibrium
It has been determined that fluoride can prevent the decay of tooth enamel. Historically, tin(II) fluoride was added to toothpaste to help combat tooth decay. Titration analysis was used to determine the concentration of tin(II) fluoride in a NMmple of toothpaste. A 10.0 mL sample of tin(II) fluoride solution was acidified and titrated with 0.0100 mol/L potassium dichromate solution as represented by the following equation.
3Sn2+(aq)+Cr2O2−7(aq)+14H+(aq)→3Sn4+(aq)+2Cr3+(aq)+7H2O(l)
Trial I II III IV Final Volume (mL) 9.39 16.93 23.61 30.32 Initial Volume (mL) 2.85 9.39 16.93 23.61 Volume Used (mL)
a.The moles of Cr2O72-(aq) that reacted, expressed in scientific notation, is a.bc x 10-dmol. The values of a, b, c and d are
b.The concentration of Sn2+(aq), expressed in scientific notation, is a.bc x 10-d mol/L. The values of a, b, c and d are
Posted 4 years ago by noure2 in Chemistry 30 | 1 answers
#chemistry 30