The largest use of nitric acid is in the reaction with ammonia to produce ammonium nitrate for fertilizer.
A) If 275.0 g of nitric acid reacted with 156.5 g of ammonia, what is the limiting reagent?
B) How many grams of ammonium nitrate would be produced?
C) If only 300 g of ammonium nitrate was produced, what is the percent yield?
In: Chemistry
A 200.0 mL buffer solution is 0.260 M in acetic acid and 0.260 M in sodium acetate.
1) What is the initial pH of this solution?
2) What is the pH after addition of 0.0100 mol of HCl?
3) What is the pH after addition of 0.0100 mol of NaOH?
In: Chemistry
How do you find Eo of a cell?
Is the formula Eo cell= cathode - anode?
Or is it Eo= Oxidation + Reduction?
i am very confused as to when I should add the cell potentials together and when I should subtract. If at all possible, please provide examples!
In: Chemistry
Particle in a box: given the number of carbon atoms, and the wavelength. How do I find the highest filled orbital, the lowest unoccupied orbital, and the box length. (ex. # of C atoms = 4, wavelength = 508.9nm. HFO = ?, LUO= ?, Box length = ?nm
L=√[(hʎ/8mc) (n^2-n^2 )] I believe I need to use this equation to find the box length. I just don't know how to find what the n values are.
In: Chemistry
Briefly describe all the roles played by complementary base pairing in:
1) DNA replication
2) Transcription
3)Translation
In: Chemistry
The initial rates listed in the following table were measured in
methanol solution for
the reaction: A + 2 B + C ↔ 2 D + 2 E
| Experiment | Initial [A] | Initial [B] | Initial [C] | Initial Rate of Formation D (M/s) |
| 1 | 0.105 | 0.15 | 0.200 | 1.8 x 10-5 |
| 2 | 0.105 | 0.30 | 0.200 | 7.1 x 10-5 |
| 3 | 0.052 | 0.30 | 0.200 | 3.5 x 10-5 |
| 4 | 0.105 | 0.30 | 0.255 | 7.1 x 10-5 |
Write the rate law for the reaction.
What is the numerical value of k? (don’t forget to include the units)
In: Chemistry
Can you use phenolphthalein to titrate a colored solution? Explain please! I can't figure this out.
In: Chemistry
The specific rate constant for the first-order decomposition of N2O5(g) to NO2(g) and O2(g) is 7.48×10−3s−1 at a given temperature.
Part A:
Find the length of time required for the total pressure in a system containing N2O5 at an initial pressure of 0.110 atm to rise to 0.150 atm . Express your answer using two significant figures.
Part B:
Find the length of time required for the total pressure in a system containing N2O5 at an initial pressure of 0.110 atm to rise to 0.220 atm .Express your answer using two significant figures.
Part C:
Find the total pressure after 120 s of reaction.
In: Chemistry
(1) Briefly explain the similarities and differences between nitric oxide oxidation and sulfur dioxide oxidation in the troposphere. (10 points possible)
In: Chemistry
the product in a Coumarin synthesis lab is soluble in aqueous base. Why?
1.The base deprotonates α- to the carbonyl to form an enolate ion.
2.The base deprotonates α- to the phenol to form a phenylate anion.
3.The base deprotonates the phenol hydroxyl to form a phenoxide anion.
4.The product is water soluble.
In: Chemistry
The solubility of Mg3(AsO4)2 in water is 0.685 g in 0.935 L of water at a given temperature. What is the value of Ksp for Mg3(AsO4)2? (The molar mass of Mg3(AsO4)2 is 350.7 g/mol)
In: Chemistry
What is the pH of a buffer solution containing 0.410 M hypochlorous acid (HOCl) and 0.050 M (sodium hypochlorite) NaOCl? (Ka(HOCL))=3.2*10^-8
Please show work.
In: Chemistry
In: Chemistry
Which of the following names is correct?
| 1-propyl-2-pentene | |
| 3,3-diethyl-4-propene | |
| 2-ethyl-3-pentene | |
| 2-methyl-1-butene | |
| None of the above are correct. |
In: Chemistry
The Cherry Kool Aid dispensed from the burette was prepared as per the package instructions. The suggested serving size of Kool Aid is 8.0 ounces. How many moles and grams of red 40 (MW=496.42g/mol) are found in a serving fo Cherry Kool Aid? ( HInt: Use the concentration of undiluted Kool Aid you determined in the lab= 0.092mM )
In: Chemistry