Homework Help: CHemistry

Posted by Phil on Saturday, April 21, 2007 at 10:21pm.

im not sure how u solve these types of problems...

How many moles of NaOH are contained in 200ml of a 0.1M of NaOH?

How many grams of NaOH are contained in 500ml of a .5M solution of NaOH?

<<How many moles of NaOH are contained in 200ml of a 0.1M of NaOH? >>
A 0.1 M solution has 0.1 moles of the solute NaOH per liter. You have 0.2 liters. The answer is therefore 0.1 x 0.2 moles.

Do the second problem similarly to get the numner of moles of NaOH, and then multiply by the molecular weight of NaOH to get the answer in grams of NaOH.

No one has answered this question yet.

Answer this Question

Related Questions

Chemistry - I dissolved 4g of solid NaOH in 200mL of water. I converted grams of...
Chemistry help - I am confused as to how to solve the below problem. I am not ...
chemistry - How many moles of NaOH are contained in 100.0 mL of 3.00 M NaOH? /
Chemistry - How many moles of H2SO4 are required to react with 50 mL of NaOH ...
chemistry - In a titration, 3.4 g of an acid (HX) requires 21.5 mL of 0.85 M ...
chemistry - Can you help me with the following: Calculate hte pH that results ...
Chemistry - Volume of HCl, mL:26.5mL Volume of NaOH,mL:29.1mL Molarity of NaOH, ...
Inorganic chemistry - mol KHP = (0.7719g)(1 mol KHP/204.2g) = .0038mol Where are...
chemistry - Can someone please explain the behavior of HCl/NaOH mixture as to ...
chemistry 101 - If 15g of NaOh is dissolved in 285 g of water, calculate the ...

For Further Reading

First Name:
School Subject:
Answer: