Search 75,402 tutors

If AgNO3 solution is added to a solution containing Br- ions until the silver ion concentration is 8.17 x 10-5, what is the Br- ion concentration? The Ksp for AgBr is 5.2 x 10-13

how to calculate mole of electron proton and nutron

what is difference between chemical property and physical property?

Is the valence for Boron .B: or .?. ? Explain this in terms of the molecular geometry.

Calculate the molar solubility of a hypothetical metal sulfide, MS, in a solution saturated with H2S at 25C. The pH of the solution is 3.44. Kspa for MS is 1.7 x 10-3.   I know that I...

What is the answer in kJ?

"Calculate how many cm^3 of a solution of sulfuric acid 80% (density = 1.727 g/mL) must be diluted with water in order to prepare a 0.2 L 0.4 M solution. If we add to this final solution of sulfuric...

Equal weights of zinc and iodine react to form ZnI2 find the maximum weight ZnI2formed if 1gm of each was taken initially. Please answer me fast.

Ca(OH)2+H3PO4->Ca3(PO4)2+HOH This one's a bit difficult to figure out. Thanks!

what is Physical quantity?

What is Transition Metal ? Explain With Example !

What is chemical Substance ? Please Explain with Example!

How would I convert grams into moles, and vice versa? Please make is as simple as possible! Thanks!

what is happening in chemical reactions at a molecular level ?

Part A. Phosgene (carbonyl chloride), COCl2, is an extremely toxic gas that is used in manufacturing certain dyes and plastics. Phosgene can be produced by reacting carbon monoxide and chlorine gas...

How does cs2 and cf4 differ in bonding

Calculate the volume of air needed for the combustion of 1 kg of carbon. answer  8888.9

I've had this explained to me in class, but I just don't get it. Is there a simple way to learn it? Thank you!

calculate [OH- ] and pH for each of the following solutions. (Kw = 1.0 10-14.) A mixture that is 0.050 M in CH3COONa and 0.044 M in (CH3COO)2Ba

1.) Group 1 2.) Group 2 3.) Group 13 4.) Group 14 This question doesn't make any sense to me :/ Can you please explain it?