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
Readme [11.4K]
3 years ago
7

How many mL of a stock solution of 2.00 M KNO3 are needed to prepare 100.0 mL of 0.15M KNO3? with work plz

Chemistry
1 answer:
Tatiana [17]3 years ago
3 0
Using the law of dilution :

Mi x Vi =  Mf x Vf

2.00 x Vi = 0.15 x 100.0

2.00 x Vi = 15

Vi = 15 / 2.00

Vi = 7.5 mL

hope this helps!


You might be interested in
The gold foil experiment resulted in two major discoveries which were made about the structure of the atom. what were they
DanielleElmas [232]
It showed that the nucleus is positively charged, and that the atom isn't just made of electrons.
8 0
3 years ago
Find the empirical formula of the compound ribose, a simple sugar often used as a nutritional supplement. A 14.229 g sample of r
MakcuM [25]

Answer:

CH2O

Explanation:

Firstly, we need to convert the masses of the elements to percentage compositions. This can be done by placing the mass of each element over the total mass multiplied by 100% . We can start with carbon.

C = 5.692/14.229 * 100 = 40%

O = 7.582/14.229 * 100 = 53.29%

H = 0.955/14.229 * 100 = 6.71%

We then proceed to divide each percentage composition by their atomic mass of 12, 16 and 1 respectively.

C = 40/12 = 3.333

O = 53.29/16 = 3.33

H = 6.71/2 = 6.71

Dividing by the smaller value which is 3.33

C = 3.33/3.33 = 1

O = 3.33/3.33= 1

H = 6.71/3.33 = 2

The empirical formula of the compound ribose is CH2O

6 0
3 years ago
Read 2 more answers
Which body system is this? Your brain and nerves receive and send
KiRa [710]

Answer: its the nervous system

Explanation:

8 0
3 years ago
THE GOVERNMENT WANTS TO CONTROL US ALL!!! LOL JK
Nina [5.8K]

Answer:

No!! IT'S TRUE!!!!!

Explanation:

7 0
3 years ago
Read 2 more answers
Which is the most abundant isotope of carbon??
Gwar [14]
Carbon-12, my friend
3 0
3 years ago
Other questions:
  • How do decomposers get energy?
    11·1 answer
  • What is best way to get salt out of salt water solution
    6·2 answers
  • The whiye pigment TiO2 is prepared by the reaction of titanium tetrachloride, TiCl4, with water vapor in the gas phase:
    9·1 answer
  • Which of the following is not part of protozoa?
    15·1 answer
  • A buffer is a solution that is a mixture of either a weak acid and its conjugate base or a weak base and its conjugate acid. Whe
    14·1 answer
  • .Inherited traits are passed from parent to offspring by information coded in
    9·1 answer
  • What does the o in chemistry mean?
    8·2 answers
  • Poseen ocho, electrones de valencia, exepto el helio que tiene solo dos. Estan ubicados en el grupo VIIIA o 18. Son conocidos ta
    6·1 answer
  • What is the pH of a solution of RbOH with a concentration of 0.86 M? Answer to 2 decimal places
    7·1 answer
  • How much would the boiling point of water increase if mol of NaCl added 1 kg of water (Kb= 0.51 degrees Celsius /(mol/kg) for wa
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!