1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
kakasveta [241]
3 years ago
14

A 5% Dextrose solution is diluted with sterile water. The volume of the sterile water added is 40% of the volume of the Dextrose

. What is approximately the new Dextrose concentration?
Chemistry
1 answer:
baherus [9]3 years ago
8 0

Answer:

4.90% is approximately the new Dextrose concentration.

Explanation:

Volume by Volume percent is given by ;

(v/v)\%=\frac{\text{Volume of solute}}{\text{Volume of solution}}\times 100

Volume percentage of dextrose solution = 5%

In 100 mL of solution 5 ml of dextrose is present.

Now, volume sterile water added was equal to the 40% of volume of dextrose volume.

So, volume of the sterile water added = \frac{40}{100}\times 5 ml = 2 mL

Total volume of the solution after addition of water = 100 mL + 1 mL = 102 mL

New concentration of dextrose will be;

(v/v)\%=\frac{\text{Volume of solute}}{\text{Volume of solution}}\times 100

\frac{5 mL}{102 mL}\times 100=4.90\%

4.90% is approximately the new Dextrose concentration.

You might be interested in
A substance undergoes a change. Which of the following indicates that the change
LekaFEV [45]

Answer:

change of color

Explanation:

when a substance undergoes a change of color it is an indication that it was chemical

5 0
3 years ago
Scientists can change society by defending their work in the face of controversy true or false
VMariaS [17]

they're not speaking to you and your family a very happy and prosperous new year and I will be there at first I thought it would be a good time to come by and see you soon

7 0
3 years ago
Compounds pure substances made of two or more types of _____ and are _____ _______
melomori [17]

Answer: chemical substance

Explanation:

4 0
3 years ago
In a certain acidic solution at 25 ∘c, [h+] is 100 times greater than [oh −]. what is the value for [oh −] for the solution? in
marishachu [46]

Answer:

1.0 x 10⁻⁸ M.

Explanation:

<em>∵ [H⁺][OH⁻] = 10⁻¹⁴. </em>

∵ [H⁺] = 100 [OH⁻].

∴ 100 [OH⁻][OH⁻] = 10⁻¹⁴.

∴ 100 [OH⁻]² = 10⁻¹⁴.

[OH⁻]² = 10⁻¹⁴/ 100 = 1.0 x 10⁻¹⁶.

<em>∴ [OH⁻] = √(1.0 x 10⁻¹⁶) = 1.0 x 10⁻⁸ M. </em>

3 0
3 years ago
What are the concentrations of sugar
mariarad [96]
The easiest way to answer this question is to first figure out the molar mass of the sugar in question. To do this multiply the number of individual atoms for a given element by its atomic mass. 12 X 12.01 g/mol = 144.12 g/mol C. 22 X 1.008 g/mol = 22.176 g/mol H. 11 X 16.00 g/mol = 176.00 g/mol O.
4 0
3 years ago
Other questions:
  • Ethanol is a common laboratory solvent and has a density of 0.789 g/ml. What is the mass, in pounds, of 39.0 gallons of ethanol?
    14·1 answer
  • What part of a flowering plant becomes fruit?<br><br> seed<br> ovary<br> stem<br> spore
    13·1 answer
  • Which statement correctly compares an atom of an alkali metal with an atom of the alkaline earth metal next to it on the periodi
    11·2 answers
  • Suppose the reaction between nitrogen and hydrogen was run according to the amounts presented in Part A, and the temperature and
    11·1 answer
  • How many molecules are in 5.00 grams of NH3
    8·1 answer
  • The average kinetic energy of water molecules is greatest in _____.
    9·2 answers
  • Help me, I’m failing chem
    7·2 answers
  • I have tried the answer 3.9149 and 3.914, it is incorrect
    7·1 answer
  • Two substances (A and B) are placed at each end of a glass tube. The vapors of the substances form a solid that is closer to sub
    6·1 answer
  • Please help, chemistry is kicking me!
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!