Thursday
December 5, 2013

# Posts by Chem

Total # Posts: 106

chem help
Ammonia,is a weak base with a Kb value of 1.8x10^-5 .What is the pH of a 0.22M ammonia solution?

chem help
Ammonia,is a weak base with a Ka value of 1.8x10^-5 .What is the pH of a 0.22M ammonia solution?

chem help
You need to produce a buffer solution that has a pH of 5.08. You already have a solution that contains 10 mmol (millimoles) of acetic acid. How many millimoles of acetate (the conjugate base of acetic acid) will you need to add to this solution? The of acetic acid is 4.74.

chem
I DONT GET WHATS DONE.. DR.Bob22 - could u please explain this again..thank u

Chem
so wat do i do?

Chem
complete and balance the following decompition equations CaCO (heated) --> 3 please tell me how to do this and what exactly is suppose to be going through my head while doing this. I can balance these equations with no problem I just have no idea what to do...

Chemistry
How many atoms are there in 6.90 moles of sulfur (S)? Calculate the molar mass of a compound if 0.411 mole of it has a mass of 185 g. Know of any good sites that help answer these ? Or information on how to?

chem
E is NOT NOT NOT THE ANSWER!!!!

chemistry
Does the element sodium have properties in common with NaCl? Explain

chemistry
Which of the following subshells is correctly designated? a. 1f5 b. 3s3 c. 6f12 d. 4d11 e. 1p2

Pages: <<Prev | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | Next>>

Search
Members