Wednesday
May 4, 2016

Posts by vince11

Total # Posts: 5

chem
How many pH units change are usually required for an indicator to undergo a color change?
November 28, 2012

chemistry
water is the solvent and it is aasumed its density is 1.0g/cc pls need simple explanation forall of this problems
November 27, 2012

chemistry
a. Find the amount of solute based on this information Volume = 500 ml Concentration of solution= 15% (w/w) Solute (molar mass) = H2SO4 is 98.0g/mol b. Find the molar mass Amount of solute= 117.0g Volume of solution= 2.00L concentration of a solution= 1.0M volume of solvent = ...
November 27, 2012

chem
Describe in detail by words how to prepare 200ml of .150M HCl from a 1.00 M HCl stock solution? Need help with this please? i used C1V1=C2V2 and got volume 2 = 33L or 0.33mL. to prepare the solution i need to weigh 1 gram of HCL (from 1.00M HCl stock solution)lets say i put it...
November 27, 2012

chemistry
a. Find the amount of solute based on this information Volume = 500 ml Concentration of solution= 15% (w/w) Solute (molar mass) = H2SO4 is 98.0g/mol b. Find the molar mass Amount of solute= 117.0g Volume of solution= 2.00L concentration of a solution= 1.0M volume of solvent = ...
November 27, 2012

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