33 Answered Questions for the topic Concentration

Concentration Chemistry Uncertainty

08/17/16

Concentration with Uncertainty

Timothy has 1 gallon of 6% bleach, assume 94% is water.Timothy decides to dilute the bleach separately. Timothypours 10mL+0.1, 9mL+0.1, 8mL+0.1, 7mL+0.1, 6mL+0.1, and 1mL+0.1, of the bleach into 6... more
Concentration Chemistry Lab

11/11/15

how do you make a 10ml solution with a .40m concentration

I know it has to do with molars and making a solution that we can measure how much light goes through it because we are doing concentration.
Concentration

10/12/15

8L of a 45% saline solution was mixed with 4L of pure water. What is the concentration of the mixture?

I forgot how to find concentration
Concentration

06/28/15

What is the new concentration when 78.2 mL of a 15.0 M solution of HBr was diluted to 988 mL?

0.908 is the answer. Just need a how to do it. Thanks!
Concentration Chemistry Moles Volume

04/25/15

Finding concentration!

Please help if you're able. I really don't understand this at all.    A student has a flask containing nitric acid (HNO3 (aq)). She is not sure what the concentration of this acidic solution is... more
Concentration

03/09/15

How many grams of calcium nitrate needs to be added to make 400 mL of solution that has a molarity of 2.5?

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Calculate the concentration of a solution with an absorbance of 1.275 (A). The slope is 0.0184 (A)/% and the Y intercept is 0.037 (A). Show your work.

A sample is made up of a solvent only (and reactants other than the compound of interest, if any) is called a blank. If the blank has a measurable absorbance, the the curve has a non-zero... more
Concentration

03/26/14

with a 1:6 ratio of serum to dilutes. A 140 mg/dL would be what value?

A serum dilution is made using 1:6 ratio of serum to dilutes.  The glucose concentration of the diluted specimen was found to be 140mg/dL.  What glucose value should be reported for the serum?

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