♥Harmony S: CHEMIStry*? what is [H3O] in 0.70M HCN? answer is 1.9x10^-5, how do you figure out? Answers and Views: Answer by Dennis MYou need Ka to solve it. My book (Zuhmdahl, 5th ed.) says it is 6.2 X 10^-10. HCN = H+ + CN- Let "X" equal [H+] and [CN-]. Ka = [H+][CN-] / [HCN] = 6.2 X 10^-10 X^2 / 0.70 = 6.2 X10^-10 X^2 = 4.34 X … [Read more...] about CHEMIStry*?
Chemistry
What are the best colleges and universities for chemistry?
kristof f: What are the best colleges and universities for chemistry? I was just wondering what colleges are the best in the world for chemistry (I would prefer a list of all universities in the world like in the UK and US). If I can get a link or a list of the best colleges for chemistry that be great. Thank you! Answers and Views: Answer by … [Read more...] about What are the best colleges and universities for chemistry?
What is the importance of organic chemistry to being a Pharmacist?
SD: What is the importance of organic chemistry to being a Pharmacist? Hi, I'm a student currently in the pharmacological chemistry major. I'm taking upper division Organic chemistry classes right now but I have an extremely bad professor. I'm afraid that he'll leave out important information. I am just wondering how important is ochem is to … [Read more...] about What is the importance of organic chemistry to being a Pharmacist?
How much Chemistry should know a Physics undergrad ,who s interested in Astrophysics and Space technology?
Rudolf C: How much Chemistry should know a Physics undergrad ,who s interested in Astrophysics and Space technology? I m a physics undergrad with a major interest in astrophysics and space technology and I m not found of Chemistry at all.The question is for those of you who are at least grad student or higher . I m quite F level in Chem.and the … [Read more...] about How much Chemistry should know a Physics undergrad ,who s interested in Astrophysics and Space technology?
CHEMISTRY!!!!!!!!!!!!!!!!!!!!!!?
: CHEMISTRY!!!!!!!!!!!!!!!!!!!!!!? Molten sodium chloride is decomposed into its elements by electrolysis. write a balnced equation for this reaction. What is the sum of the coefficients? A. 3 OR LESS B.4 C.5 D.6 E.7 OR LESS Answers and Views: Answer by [email protected] -> Na + Cl soo i'm guessing it's A! … [Read more...] about CHEMISTRY!!!!!!!!!!!!!!!!!!!!!!?
How do you calculate entropy changes from absolute entropy values?
Kiwi: Chemistry - How do you calculate entropy changes from absolute entropy values? Can someone please give me a basic example...? And also provide a very brief explanation and the general equation required to work this out. The difficulty is a-level, from a chemistry point of view. 10 points for the most precise and clear response. Answers … [Read more...] about How do you calculate entropy changes from absolute entropy values?
cheMISTRY!?
BUM: cheMISTRY!? Which of the following compounds can exist as cis and trans isomers ? a) CH2=CHF b) CHCl=CH-CH2Cl c) HClCFCl d) CBrBr=CH-CH2Cl e) 3-hexene please explain how uk now when something is both cis and trans isomer. thanx. Answers and Views: Answer by bobgoogle works magic. … [Read more...] about cheMISTRY!?