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
iVinArrow [24]
3 years ago
11

A student is asked to make 500 mL of a buffer solution for an upcoming laboratory investigation that requires 50.0 mL of 3.0 M p

hosphoric acid. The student searches the acid cabinet in the stockroom but can only find 4.5 M phosphoric acid. Calculate the amount of 4.5 M phosphoric acid the student should dilute to a total volume of 500 mL. Give our answer to the nearest tenth of a mL.
Chemistry
1 answer:
Evgen [1.6K]3 years ago
3 0

To solve this we use the equation, 

M1V1 = M2V2

<span>where M1 is the concentration of the stock solution, V1 is the volume of the stock solution, M2 is the concentration of the new solution and V2 is its volume.</span>

4.5 ( V1 ) = 3.0 ( 500 mL )

V1 = 333.33 mL needed of the 4.5 M phosphoric acid


Hope this answers the question. Have a nice day.

You might be interested in
What is boiling point​
frutty [35]

Answer:

Its the temperature at which the molecules of a matter especially a liquid attain higher kinetic energy and the rate of collision becomes increased

Explanation:

8 0
3 years ago
Help plz I will give u BRAINLIST
Agata [3.3K]

CS2 + 3O2 = CO2 + 2SO2

1 mole of CS2 gives 1 mole of CO2

12 + 2(32) = 76g of CS2  yields 44 g of CO2

Theoretically 1 g of CS2 yields 44/76 g CO2

Therefore 50 g CS2 should yield    50*44 / 76 = 28.95 g

So % yield = 103.6 %  ( which is not possible  because you can't create matter from nothing).

The 30g cannot be right . This is experimental err.

6 0
3 years ago
The following charges on individual oil droplets were obtained during an experiment similar to Millikan's. Determine a charge fo
RSB [31]

Answer:

- 1.602 x 10⁻¹⁹coulombs

Explanation:

Charge on individual oil droplet would be multiple of charge on one electron . So we will find out the minimum common factor of given individual charges that is the LCM of all the charges given.

LCM of given charges like 3.204 , 4.806 ,8.01 and 14.42 . We have neglected the power of ten( 10⁻¹⁹)  because it is  already a common factor to all.

The LCM  is 1.602 . So charge on electron is 1.602 x 10⁻¹⁹.

4 0
3 years ago
Part
r-ruslan [8.4K]

The molar concentration will be greater than 0.01 M KIO_{3}.


Since more of the compound was measured out than what was calculated, you can think of the solution as being 'stronger' than what it was calculated to be. Since a 'stronger' concentration results in a number that is higher, the molarity of this solution is going to be greater than 0.01 M.

7 0
3 years ago
Hydroxide is an example of _______ and it's formula is OH-.
Ksju [112]

Answer:

polyatomic ion

Explanation:

It is polyatomic ion have a great day marry christmass

6 0
3 years ago
Other questions:
  • This one is actually 30 points chem quesitons
    5·1 answer
  • Why do cars need a cooling system in conjunction with the engine?
    5·1 answer
  • Why doesn't light get absorbed
    10·1 answer
  • Which of the following does not contribute to water vapour to the atmosphere
    10·1 answer
  • How are organisms organized from simple to complex?
    14·2 answers
  • 1. Is a hurricane or a tornado deadlier on average?
    11·1 answer
  • Given the following sets of values, calculate the unknown
    7·1 answer
  • HELP ASAP ITS URGENT FOR A GRADE
    13·2 answers
  • What are things animals might do to survive?
    13·1 answer
  • The atmosphere traps_____ radiation aka heat, which helps keep planet warm
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!