Recent content by jkh4
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What Are the Major Products of Benzoic Acid and Hydroquinone Nitration?
Homework Statement 1) What other nitration products in a electrophilic nitration of benzoic acid would be formed if each reaction were carried out at a higher temperature? 2) The nitration of hydroquinone leads to a low yield of nitrohydroquinone. Propose the structure of the major product...- jkh4
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- Forum: Biology and Chemistry Homework Help
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Is there any difference between Miscible and Soluble?
Thank you for the explanations :) That really helps! -
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Is there any difference between Miscible and Soluble?
Are there any differences between the terms Miscible and Soluble? I am kind of confuse between these two terms. Are they interchangeable? Thank you! -
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[Chemistry Lab] Isolation of Aldehyde and Carboxylic Acid
[Chemistry Lab] Cannnizzaro Reaction Hi! I am having some questions about my chemistry lab. In the lab we are given 1 of the 5 unknown aldehyde (benzaldehyde, anisaldehyde, nitrobenzaldehyde, chlorobenzaldehyde, and dimethoxybenzaldehyde) and reacts it with methanol and KOH to undergo...- jkh4
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- Acid Isolation Lab
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- Forum: Biology and Chemistry Homework Help
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[Chemistry] Calculation of Pt potential
Homework Statement Calculate the potential of a Pt electrode immersed in a solution that is 0.0263M in K2PtCl4 and 0.1492M in KCl. The answer given in 0.78 Homework Equations E = Eo - 0.05912/2 * log Q (Nernst Equation) The Attempt at a Solution We try looking at the reduction of PtCl4...- jkh4
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- Calculation Chemistry Potential
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- Forum: Biology and Chemistry Homework Help
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How do you write a Mass Balance or Charge Balance for Acid-Base Equilibrium?
Can somebody explain how do you write a Mass Balance or Charge balance for a acid-base equilibrium? Let say, if you are given 0.01M Zn(OH)2 in a saturated NaOH solution and also given that Zn(OH)2 + 2OH- -> Zn(OH)4(2-) how would you solve the mass balance/charge balance? I really have no idea...- jkh4
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- Balance Mass
- Replies: 2
- Forum: Biology and Chemistry Homework Help
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How Does Electrode Potential Change in a Mixed Ce4+ and Fe2+ Solution?
so in this case, k is 1.1×10^16? cause when i try the quadratic on the internet quadratic solver, it says the answer is an imagary number...- jkh4
- Post #5
- Forum: Biology and Chemistry Homework Help
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How Does Electrode Potential Change in a Mixed Ce4+ and Fe2+ Solution?
but since the k is such large number, [Ce4+] is going to be large too right?- jkh4
- Post #3
- Forum: Biology and Chemistry Homework Help
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How Does Electrode Potential Change in a Mixed Ce4+ and Fe2+ Solution?
1. Homework Statement Given the following half-reactions: Ce4+ + e− → Ce3+ E° = 1.72 V Fe3+ + e− → Fe2+ E° = 0.771 V A solution is prepared by mixing 7.0 mL of 0.30 M Fe2+ with 8.0 mL of 0.12 M Ce4+. Calculate [Ce4+] in the solution. I've got the potential of a platinum electrode...- jkh4
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- Chemistry Electrochemistry
- Replies: 7
- Forum: Biology and Chemistry Homework Help
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What Determines the Spontaneity of Oxidation and Reduction Reactions?
What is the different between spontaneous reduction and spontaneous oxidation? For spontaneous reduction you need to have Ecell to be (+), then what about spontaneous oxidation? Thanks.- jkh4
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- Electrochemistry
- Replies: 1
- Forum: Biology and Chemistry Homework Help
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Questions about Diels Alder reaction
I am doing a research on Diels Alder, and I just want to know what are some of the history and applications of Diels Alder? Thank you.- jkh4
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- Reaction
- Replies: 1
- Forum: Biology and Chemistry Homework Help
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Factors Affecting Energy Gap in Aromatic Compounds
what about the ratio of phenol and phenoate? is that mean the ratio of concentration?- jkh4
- Post #3
- Forum: Biology and Chemistry Homework Help
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Factors Affecting Energy Gap in Aromatic Compounds
please help! questions on pKa of Phenol Hi, I have some questions regarding the pKa of Phenol lab that I am working on right now. 1) What would cause the absorbance curves to not go through the isosbestic point? For this one, I know that isosbestic point is not pH dependent so pH won't...- jkh4
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- Phenol
- Replies: 4
- Forum: Biology and Chemistry Homework Help
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[Chemistry] How do you find the new concentration?
Homework Statement For solution A the concentration is 7.00x10^-4 mol/L. You transfer 10ml of the solution A out into a 10 dram vial and add 10mL of 0.1M HCL acid solution, and the new mixture is called solution B. What is the concentration of solution B? Homework Equations The Attempt...- jkh4
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- Chemistry Concentration
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- Forum: Biology and Chemistry Homework Help