What in ideal mixture? How does it differ from an ideal gas mixture? What about an ideal-dilute solution?
In: Chemistry
I mix together 50.0 mL of 0.100 M NaIO3, 50.00 mL of 0.100 M NaOH, and 10.0 mL of 0.100 M HIO3. What is the pH of the mixture?
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1. How does temperature affect solubility of salicylic acid based on your results?
2. Explain how you used Beer
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How do you find the rate constant here?
| trials | [I] | [H2O2] | [H] | temp (C) | Rate (M/s) |
| 1 | 8.53*10^-3 | 1.03*10^-1 | 0.333 | 21.5 | 5.33*10^-4 |
| 2 | 8.53*10^-3 | 1.03*10^-1 | 0.333 | 15 | 4.3*10^-4 |
| 3 | 8.53*10^-3 | 1.03*10^-1 | 0.333 | 42 | 2.17*10^-3 |
In: Chemistry
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Identify the oxidizing agent and the reducing agent in the
following: answer is
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How many grams of oxygen does it take to burn 16.8 g of glucose?
In: Chemistry
Complete and balance the following equations, and identify the oxidizing and reducing agents. (Use the lowest possible coefficients. Include states-of-matter (s), (l), (g), (aq) similar to the given reaction.)
1.
(a) Tl2O3(s) + NH2OH(aq) ? TlOH(s) + N2(g) (basic solution)
(b)What is the oxidixing agent?
2.
(a) I2(s) + OCl-(aq) ? IO3-(aq) + Cl-(aq) (acidic solution)
(b) What is the oxidizing agent?
(c) What is the reducing agent?
3.
(a) MnO4-(aq) + Cl-(aq) ? Mn2+(aq) + Cl2(g) (acidic solution)
(b) Reducing agent?
4.
(a) H2O2(aq) + Cl2O7(aq) ? ClO2-(aq) + O2(g) (basic solution)
(b) Oxidizing agent?
(c) Reducing agent?
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Consider the titration of 30.0ml of 0.030 M NH3 (Kb=1.8 x 10^-5) with 0.025M HCl. What is the pH after the addition of 36.0mL of HCl?
In: Chemistry
Styrene is polymerized by free radical mechanism in solution. The initial monomer and initiator concentrations are 1 M and 0.001 M, respectively. At the polymerization temperature of 60ºC, the initiator efficiency is 0.30. The rate constants at the polymerization temperature are as follows:
kd= 1.2 x 10-5 s-1
kp= 176 M-1s-1
kt= 7.2 107m-1s-1
Given this information, determine the following;
a. Rate of initiation at 1 min and at 16.6 hrs
b. Steady-state free radical concentration at 1 min
c. Rate of polymerization at 1 min
d.Average free-radical lifetime, t,at 1 min, where t is defined as the radical
concentration divided by the rate of termination.
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1) Determine how the following error would affect calculated the percent yield of alum. (increase, decrease, no effect). Briefly explain.
- Alum Sample was not dried completely in the oven.
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Describe the following techniques (Fourier transform spectroscopy):
a. Michelson interferometer
b. Diffuse reflectance
c. Attenuated total reflectance method
In: Chemistry
Assign oxidation states to each atom in each of the following species.
Part A
N2
Part C
HgS
Part D
CH4
Part E
Cr2O72?
Part F
HCO3?
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An air parcel has a temperature of 30 degrees Celsius and a relative humidity of 50% at an air pressure of 1000mb. Compute the following:
a) water vapor pressure
b) mixing ratio
c) specific humidity
d) specific heat of moist air at constant pressure; and,
e) virtual temperature
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how many molecules of ATP are produced in the complete oxidation of a 12-carbon satuated fatty acid?
In: Chemistry
A sample of a chemical substance was decomposed in the
laboratory and found to have 29.00g C, 12.17g H, and 33.83g
N.
a)Find the molecular formula of this compound if the Formula mass
is 62.12 g/mole.
b)Determine how many H atoms would be in a 2.70g sample of this
compound.
In: Chemistry