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
irakobra [83]
2 years ago
10

How much pure alcohol must a pharmacist add to 10 cm.

SAT
1 answer:
Lera25 [3.4K]2 years ago
3 0

The amount of pure alcohol that the pharmacist must add to 10 cm of a 10% alcohol solution to strengthen it to a 70% solution is; 20 cm³

<h3>Volume of Solutions</h3>

Let x represent the volume of 100% pure alcohol in cm³ that is required to be added. Thus;

x(100%) + 10%(10 cm³) = 70%(x + 10 cm³)

Multiplying out the bracket gives;

x + (10 × 0.1) = 0.7(x + 10)

⇒ x + 1 = 0.7x + 7

x - 0.7x = 7 - 1

0.3x = 6

x = 6/0.3

x = 20 cm³

In conclusion. the volume of pure alcohol required to be added to 10 cm of a 10% alcohol solution to strengthen it to a 70% solution is 20 cm³

The complete question is;

How much pure alcohol must a pharmacist add to 10 cm of a 10% alcohol solution to strengthen it to a 70% solution? ASAP

Read more about Volume of solution at; brainly.com/question/26015585

You might be interested in
Based on the graph, what conclusion can be drawn about trade between the United States and China? The United States has a trade
AveGali [126]

Answer:

The United States has a trade deficit with China

Explanation:

Edg2020

8 0
2 years ago
When developing a mail merge, what are the three documents used to create the merge?
fenix001 [56]

The three documents used to create the mail merge are the main document, the source of data, and the merged document.


5 0
3 years ago
Read 2 more answers
Which describe radio waves? check all that apply. Low frequency high frequency short wavelength long wavelength low energy trans
drek231 [11]

Answer:

Low Frequency, Long Wavelength, and Low Energy Transfer

Explanation:

Radio waves are on the larger(and lower frequency) side of the electromagnetic spectrum. These longer wavelengths mean that radio waves have a lower frequency because it takes longer for larger waves to travel. Therefore, less radio waves can travel a certain distance in a minute than a wave of a shorter wavelenght(and therefore lower frequency). Radio waves are considered a low-energy transfer wave. This is because they can be used in most environments for communication, air-traffic control, and broadcasting with little to no harm to the organisms around them. Even though radio waves can be found all around us, because they don't carry much energy, we aren't harmed by the radio waves.

4 0
2 years ago
Who is wardy joubert? does he have a large one?
Elina [12.6K]

yes he has a very large one

8 0
3 years ago
Read 2 more answers
A microbiologist tested 4 substances to find out if they would kill certain types of bacteria. The substances were applied to a
tatuchka [14]

Answer:

D.was Abel to kill all 3 types of bacteria

5 0
3 years ago
Other questions:
  • A client wants to know the total addressable market for mattress sales in New York City. Without calculating the actual number,
    13·1 answer
  • Which two statements are true about a system?
    5·2 answers
  • What to do when computer says low on recourses.
    9·1 answer
  • Can anyone help me in this question!!
    15·1 answer
  • This is Ax + By = C, where A is positive and A, B, and C are real numbers.
    8·1 answer
  • Sam is preparing lunch for 100 people. Today’s menu is Oven Fried Chicken, Steamed Corn, and Mashed Potatoes. Lunch service begi
    5·1 answer
  • The reaction 2hgo (s)→2hg (i)+o2 (g) has a percent yield of 50%. You want to produce 100 g of hg. How much hgodo you need? 54 g
    10·1 answer
  • When you are about to make a turn in direction of a lighted green arrow, which of the following is true?.
    14·1 answer
  • Gdp is the value of final goods and services produced in a in a given year.
    5·1 answer
  • Which of the following are used in the production of smartphones? select the three correct answers.
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!