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
kupik [55]
3 years ago
10

What is the concentration of each of these solutions expressed as ppm?

Chemistry
1 answer:
Vaselesa [24]3 years ago
8 0
Ppm = mass of the solute in mg / mass of solvent in <span>kg

a)

0.0020 * 1000 = 2 mg
500.0 / 1000 = 0.5 kg

ppm = 2 / 0.5

= 4 ppm
________________________________________

b)
 
0.25 * 1000 = 250 mg
850.0 / 1000 = 0.85 kg

ppm = 250 / 0.85

= 294.117 ppm 
____________________________

hope this helps!

  </span>
You might be interested in
The process by which waste products are eliminated from the cell by diffusion through the cell membrane is called _____.
madam [21]

Answer:

Exocytosis

Explanation:

8 0
2 years ago
Which answer best explains the relationship between size and mass of the sun?
gizmo_the_mogwai [7]
The mean radius of the sun is 432,450 miles (696,000 kilometers), which makes its diameter about 864,938 miles (1.392 million km). You could line up 109 Earths across the face of the sun. The sun's circumference is about 2,713,406 miles (4,366,813 km). The total volume of the sun is 1.4 x 1027 cubic meters.
3 0
3 years ago
C
PolarNik [594]

Answer:

Gravity

because the earth which pulls any object towards it center and the velocity is achieved

5 0
3 years ago
Read 2 more answers
Your aunt is sipping on iced tea and fanning herself during a hot South Carolina summer day. You tell her that there is enough e
mash [69]

Answer:

Isn't this like having enough energy to supply the world for centuries with just 1% of the sea's force?

Explanation:

I guess it's because the amount of energy in it can supply energy.

3 0
3 years ago
There are 14 women and 12 men in an engineering class. The professor wants to send some of his students to a national conference
Viktor [21]

7.3% would be the correct answer

4 0
3 years ago
Other questions:
  • An example of metal-bearing deposit formed when a sulphide liquid separated from an ultramafic magma by becoming supersaturated
    15·1 answer
  • Which element(s) is/are not balanced in this equation?
    14·2 answers
  • Compare 2,500 centimeters to 25 dm how do each of these values compared to a meter elm what represents a longer length
    9·1 answer
  • How many atoms are in 2 mol of Iron
    8·2 answers
  • Describe how the Bohr model explains both of these observations.
    15·1 answer
  • The vapor pressure of water at 0c is 4.579 mmhg what is this pressure in pascals
    9·1 answer
  • HELPPP ANSWERS ????<br><br> A: 3<br> B: 2<br> C: 1<br> D: 4
    7·2 answers
  • Is a backpacking tent a structure of mass, frame, or shell?<br> Which one would it be?
    6·1 answer
  • PLEASE HELP<br> What heat transfer is a Heater.
    14·1 answer
  • a peanut butter and jelly sandwich contains 9.00 g of fat, 6.00 g of protein, and 25.0 g of carbohydrate. How many calories does
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!