In: Chemistry
Consider the reaction A -> 2 B. Initially 1.50mol A is present and no B. What are the amounts of A and B when the extent of reaction is 0.60mol?
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Identify the Bronsted acid and base in each of the following equations: Please show all work on how you got the answer so I can understand.
HNO3 + H2O
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Iron (III) oxide reacts with carbon monoxide to produce iron and carbon dioxide:
Fe2O3 (s) + 3CO(g) 2Fe (s) + 3 CO2 (g)
54.4 g of Fe2O3and 24.7 g of CO react to produce iron.
Molar mass of Fe2O3 = 159.69 g/mol. Molar mass of CO = 28.01 g/mol.
Determine the (a) limiting reactant, (b) theoretical yield, and (c) percent yield for the reaction if 29.1 g of iron are produced.
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If a 0.100 M solution of NaOH is added to a solution containing 0.200 M Ni2+, 0.200 M Ce3+, and 0.200 M Cu2+, which metal hydroxides will precipitate first and last, respectively? Ksp for Ni(OH)2 is 6.0x10?16, for Ce (OH)3 is 6.0 x 10?22, and for Cu(OH)2 is 4.8x10?20.
A) Ni(OH)2 first, Cu(OH)2 last
B) Cu(OH)2 first, Ni(OH)2 last
C) Ni(OH)2 first, Ce(OH)3 last
D) Cu(OH)2 first, Ce(OH)3 last
E) Ce(OH)3 first, Cu(OH)2 last
Give detailed explanation
In: Chemistry
| Enzyme Used | Lysozyme |
| Thermal Denaturation | |
| Temp (Celsius) | Abs (325 nm) |
| 40 | 0.106 |
| 50 | 0.086 |
| 60 | 0.109 |
| 65 | 0.161 |
| 70 | 0.409 |
| 75 | 2.06 |
| 80 | 2.173 |
| 90 | 0.821 |
| Urea Denaturation | |
| M of urea | Abs (325 nm) |
| 0 | 0.464 |
| 1 | 0.07 |
| 2 | 0.056 |
| 4 | 0.05 |
| 6 | 0.035 |
| 8 | 0.028 |
Please help me Calculate fraction denatured and equilibrium constant at each temperature and plot ln K vs T-1 graph, once plotted Find ΔH, ΔS and ΔG(T=75) (mention any assumptions you made) and What is the Tm for each protein
In: Chemistry
In: Chemistry
An engineer is designing a product in which a copper wire will carry large amounts of electricity. The resistive heating of a 66 g copper wire is expected to add 550 J of heat energy during a 10-minute operating cycle.
By what percentage does the volume increase because of the temperature increase?
(Note: Remember to always use unrounded values in calculations then round final answers to the correct significant figures.)
You may use the following information about copper to answer the question:
specific heat = 0.385 J g-1 °C-1
density = 8.94 g/cm3
coefficient thermal expansion = 6.5 µm m-1 K-1
In: Chemistry
Choose an organic compound to describe in depth; do not choose a nonmetal already selected
by another student. Include information on whether it is found in nature, how it can
be synthesized, its physical and chemical properties, and its uses or applications.
In: Chemistry
Aqueous potassium phosphate is added to 545 mL of a solution containing calcium chloride to precipitate all of the Ca2+ ions as the insoluble phosphate (310.2 g/mol). If 4.51 g calcium phosphate is produced, what is the Ca2+ concentration in the calcium chloride solution in g/L?
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Put the elements 14 N, 16 O, and 40Ar in order of increasing nuclear stability and justify your answer mathematically.
please show all work, units, and equations!
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Two 20.0 g ice cubes at −12.0 ∘C are placed into 255 gof water at 25.0 ∘C. Assuming no energy is transferred to or from the surroundings, calculate the final temperature, Tf, of the water after all the ice melts.
In: Chemistry
In: Chemistry
At a certain temperature, 0.860 mol of SO3 is placed in a 1.50-L container. At equilibrium, 0.100 mol of O2 is present. Calculate Kc.
In: Chemistry
The data in the table below were obtained for the reaction: 2ClO2(aq) + 2OH-(aq) ---> ClO3-(aq) + ClO2-(aq) + H2O(l) Experiment number [ClO2](M) [OH-](M) Initial Rate (M/s)
1 .020 .030 .00276
2 .060 .030 .0248
3 .020 .090 .00828
a. What is the order of the reaction with respect to ClO2?
b. What is the order of the reaction with the respect to OH-?
c. What is the overall order of the reaction?
d. What is the magnitude of the rate constant for the reaction?
In: Chemistry