Posted by **John** on Wednesday, March 27, 2013 at 2:08am.

You need 3.5L of 50mM NaCl from your 20X stock. How would you accomplish this:

20X stock __________ml

Pure Water ___________ml

From whatever number I plugged in trying to solve it, I got: 175ml of 20X stock and 3,430ml of Pure Water. Have no idea if those are right. Any help is appreciated.

## Answer this Question

## Related Questions

- Math - How would you go about making 250ml of a 20X stock solution of NaCl to ...
- Math(Please help) Thank you - How would you go about making 250ml of a 20X stock...
- Algebra-Please check - 5 - sqrt of 20x + 4 >= -3 5- 20x + 4 >= -3 5-4 - ...
- math - 5(3+4x)-6>=129 I get 2 different answers on this one. 15+20x-6>=129...
- Math - solve the equation 20x^3 +44x^2 -17x -5 given that -5/2 is a zero of f(x...
- solution making/ chemistry/biotech - You have 750ml's of a solution that was ...
- solution making/ chemistry/biotech - You have 750ml's of a solution that was ...
- Chemistry - To make 1.5 L of 0.1 M NaCl from a 2.52 M stock solution, you would ...
- Math - Find the intersection of two lines. i have the answer just please tell ...
- bio - You have a sample of NaCl that contains 100 mg/ml NaCl. You are trying to ...

More Related Questions