# chemistry

What is the concentration of a 1:2 dilution of a 0.6 M NaHCO3 solution?

1. 👍 0
2. 👎 0
3. 👁 209
1. It depends upon what 1:2 means. There is confusion among even experienced on this. If 1:2 means 1 part NaHCO3 + 2 parts water, then the concn is
0.6M x (1/3) = ?

If you mean 1 part NaHCO3 + 1 part (to make 2), then the concn is
0.6M x (1/2) = ?

The following is a good web site to read, especially the last part of the post in which the difference between "factor" and "ratio" discussed.
http://www.protocol-online.org/biology-forums/posts/31255.html

1. 👍 0
2. 👎 0

## Similar Questions

1. ### Biology

You begin with 10 ml of 2% acetic acid, and you add 90 ml of water. We will call the resulting solution "dilution#1". What is its concentration? You then repeat the dilution exactly, using 10ml of Dilution #1, adding 90 ml of

asked by Ham on September 16, 2016
2. ### Chemistry

1) If I add 10 grams of salt into 0.1 L of water, what is the molarity of the solution? 2) Serial dilution is a common technique to make low concentration solutions. Each Serial Dilution involves taking half the solution and

asked by Caitlyn on February 18, 2016
3. ### Chem

1) Which solution will have the lowest OH- A) Na2CO3 B) NaHCO3 C) NaCl D) NaHSO4 E) NH4Cl 2) Which solution will be the strongest base? A) Na2CO3 B) NaHCO3 C) NaCl D) NaHSO4 E) NH4Cl 3) Which aqueous solutions are acidic? A)

asked by Timothy on April 5, 2014
4. ### chemistry

10.0mL of solution containing 20.0 mL of 1.0 M NaX (unknown base) and 10.0 mL of 1.0 M HX (unknown acid) was diluted with 50.0 ml water. The pH is 4.92. What is the concentration of HX after dilution and X- after dilution? What is

asked by kelly on February 27, 2010
5. ### Science

Take 1mL of 1M NaCl solution, and add 9mL of water. Then take 10microL of the diluted solution and add 40microL of water. What is the dilution? And what is the final concentration of NaCl? So I see how this is a 2:1 dilution, but

asked by Alli on November 29, 2016
1. ### science

Take 1mL of 1M NaCl solution, and add 9mL of water. Then take 10microL of the diluted solution and add 40microL of water. What is the dilution? And what is the final concentration of NaCl? So I see how this is a 2:1 dilution, but

asked by Alli on November 30, 2016
2. ### Chemistry

Prepare a 0.0200 mM dye solution at low pH by dilution 0.40 ml of the stock 0.100 mM chemical X into the appropriate volume of 2.5 M HCl. What is the amount of HCL required for dilution, the final concentration of HCl in the

asked by Emma on June 24, 2010
3. ### Chemistry

Concentrated sulfuric acid is 18.4 molar and has a density of 1.84 grams per milliliter. After dilution with water to 5.20 molar the solution has a density of 1.38 grams per milliliter. This concentration of H2SO4 is often used in

asked by Kevin on January 9, 2011
4. ### chemistry, biotechnology

The question is: "The molar extinction coefficient of pure antibody is 1.4 absorbance units per milligram antibody @280nm. You have a concentrated antibody solution, so you make a 5-fold dilution and measure @280, getting an

asked by Jennifer on October 2, 2014
5. ### chemistry

I have 3 grams of CaCI2 and dissolve this into 0.5 L water. What is the concentration in g/dl (grams/deciliter)? I take 10 milliliters of this solution and add it to 990 milliliters of watet fo a total of 1000 milliliters. What is

asked by maria on September 17, 2014

More Similar Questions