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
statuscvo [17]
3 years ago
13

During an experiment, Stephanie found 4.5 mg of iron in a 750 g water sample. How many parts per million of iron are in the wate

r sample ?
Chemistry
1 answer:
lesya692 [45]3 years ago
5 0

Answer:

6ppm

Explanation

We'll begin by calculating the concentration of the solution in mg/g. This is illustrated below:

Mass of iron = 4.5mg

Mass of water = 750g

Concentration in mg/g = 4.5/750 = 6×10¯³mg/g.

Now, we can obtain the concentration in ppm as follow:

1mg/g = 1000ppm

Therefore, 6×10¯³mg/g = 6×10¯³ x 1000 = 6ppm.

You might be interested in
Scientific knowledge is open to change as new information is discovered. Which of the following would NOT be a result of new sci
amid [387]
B would be the answer
4 0
4 years ago
If a patient has a medical condition that causes his cells to absorb fewer than normal molecules, this patient would likely feel
Svetach [21]

Answer:oxygen Explanation:The medical condition described here is anaemia. It is a blood cell disorder whereby the red blood cell doesn't function properly and hence doesn't carry enough oxygen to the tissues. This is usually caused when ones body is deficient of iron.The symptoms that may occur to such patients are weakness, fatigue, headache and pale skin.Based on the explanation, the answer is oxygen

Explanation:

5 0
3 years ago
Determine the concentration of a solution prepared by diluting 20.0 ml of a 0.200 m rbcl to 250.0 ml. determine the concentratio
pogonyaev
When dealing with making diluted solutions from concentrated solutions, we can use the following formula 
c1v1 = c2v2 
where c1 and v1 are the concentration and volume of the concentrated solution respectively.
c2 and v2 are the concentration and volume of the diluted solution respectively 
substituting these values in the above formula,
20 mL x 0.200 M = C x 250.0 mL 
C = 0.0160 M 
5 0
3 years ago
To synthesize information means to A. read or view it objectively. B. take it apart and examine it. C. eliminate it as irrelevan
swat32

Answer:

The correct answer is "D".

Explanation:

The synthesis consists of extracting the most important data from a text or any source of information. To be able to synthesize it is necessary to read, understand and interpret the message or arguments presented. Once these factors have been extracted, they are brought together to form a coherent text that in a few words explains the original text.

Have a nice day!

3 0
3 years ago
A car traveled 150 meters in 5 seconds, what was its speed? 1.
Vesnalui [34]

Answer:

1.  car traveled 30 meters per second

2. pepper traveled 10 meters per second

3. tony drove around 500 meters per minute

4. the bird traveled 200 miles

Hope this helped!

4 0
3 years ago
Read 2 more answers
Other questions:
  • Which subatomic particle has negligible mass and travels around outside the nucleus?
    8·1 answer
  • What type of change produced the rust shown above? A. chemical, because a new substance with new properties was formed B. physic
    15·1 answer
  • How many grams of sulfuric acid are needed to produce 57.0 grams of water? Show all steps of your calculation as well as the fin
    13·2 answers
  • What is the maximum number of electrons in an atom that can have the following quantum numbers?Part An=2 Ms= -1/2______________e
    13·1 answer
  • Calculate the MASS if the density is 2.34 g/mL and the volume is 12.50 mL.
    8·1 answer
  • Which scenario ensures that Earth’s global temperature is maintained?
    14·2 answers
  • If an object reflects green and absorbs all other colors, it will appear _____?
    7·1 answer
  • How was the periodic law rearranged to become the periodic table, and what is its purpose?
    5·1 answer
  • Tyrone mixes some chemicals together. He notices that the mixture gives off heat and is hot to touch. What type of reaction is t
    13·1 answer
  • Green algae are often preserved as a fossil because they:
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!