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
Agata [3.3K]
3 years ago
9

muriatic acid is the commercial name for hydrochloric acid that can be purchased from hardware stores as a solution that is 30%(

w/w) HCL. What mass of this solution contains 7.5g of HCL?,
Chemistry
1 answer:
SSSSS [86.1K]3 years ago
5 0
We have 30% (w/w) HCl this means : 
               100 g solution contains 30 g HCl
               ?? g solution contains 7.5 g HCl
By cross multiplication:
Mass of solution = \frac{100 x 7.5 }{30} = 25 g solution
You might be interested in
Which of the following is an adaptation that helps protect the animal?
saveliy_v [14]
C ( Porcupines use there’s sharp quills to defend themselves from larger predators!)
6 0
2 years ago
What are protons explained simply
mylen [45]

Answer:

The protons inside an atom's nucleus help bind the nucleus together. They also attract the negatively charged electrons, and keep them in orbit around the nucleus. The number of protons in an atom's nucleus determines which chemical element it is.

8 0
3 years ago
Read 2 more answers
A cat runs across a road that
hichkok12 [17]
Lol it literally says that he covered the distance in three seconds so I believe it would be three
5 0
3 years ago
The elements on the Periodic Table are arranged in order of increasing
Nookie1986 [14]
<span>The elements on the Periodic Table are arranged in order of increasing "Atomic number"

In short, Your Answer would be Option B

Hope this helps!</span>
6 0
4 years ago
How does an adaptation begin?
Nataly [62]

In evolutionary theory, adaptation is the biological mechanism by which organisms adjust to new environments or to changes in their current environment.

6 0
3 years ago
Read 2 more answers
Other questions:
  • Questions 18-20 refer to the reaction 2NH3 (g) ↔ N2 (g) + 3H2 (g), and ΔH = 92.2 kJ.
    7·1 answer
  • When wax is heated, it turns into a liquid. How are the wax molecules affected by this change of state?
    11·2 answers
  • A horizontal tube carrying hot water has a surface temperature of 355.4 K and an outside diameter
    12·1 answer
  • What is "carbon neutral"
    13·2 answers
  • A + B-2C, ΔΗ1<br> 1/2A + 1/5B+ C, ΔΗ» =?
    10·1 answer
  • All matter has __. A.) COLOR B.) MASS C.) VOLUME D.) WEIGHT
    12·1 answer
  • Select the correct answer.
    6·1 answer
  • Question 8
    14·1 answer
  • The electron configuration can be also be represented by writing the symbol for the occupied subshell and adding a superscript t
    13·1 answer
  • Sinónimo de propiedad de la materia que es solo para un grupo de sustancias​
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!