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
Assoli18 [71]
3 years ago
5

How much pure water must be mixed with 10 liters of a 25% acid solution to reduce it to a 10% acid solution?

Mathematics
2 answers:
kakasveta [241]3 years ago
7 0
15 liters. that is the answer.
lesya692 [45]3 years ago
3 0
Original Mixture: 10 liters, 25% acid = 0.25

Added mixture :  x liters,  0% acid = 0    since it is pure water.

Total mixture:  Volume = (10 + x), % = 10% = 0.1

Using mixtures formula:

Volume₁ * %₁ + Volume₂*%₂ = Total Volume*Total% 

10*0.25 + x*0 = (10 + x)*0.10

2.5 + 0 = 10*0.10 + 0.1*x

2.5 = 1 + 0.1x

1 + 0.1x = 0.250

0.1x = 2.5 - 1

0.10 = 1.5

x = 1.5/0.1

x = 15

Amount of pure water to be added is 15 liters.

Hope this helps.
You might be interested in
Find a substance half-life in days. round your answer to the nearest tenths
jeka57 [31]
A 33 gram sample has k value of .1124
(Actually I think the problem SHOULD be worded: A 33 gram sample has k value of -.1124/days)

See attached graphic:
Half-Life = ln (.5) / k
Half-Life = -.693147 / -.1124/days
Half-Life = <span> <span> <span> 6.1667882562 </span> </span> </span> days

Source:
http://www.1728.org/halflif2.htm





3 0
3 years ago
Read 2 more answers
Adams says that the expression 52-3y is equal to 20 when y = 2 explain adams answer is incorrext
N76 [4]
Adam is incorrect because if you substitute the value of y (which is 2) on the expression 52-3y=20, the statement is false since 46 is obviously not equal to 20.

52-3(2)=20
52-6=20
46 = 20

FALSE
8 0
3 years ago
Solve the equation:<br><br> -17-2x=6-x<br><br> Solve for x.
irinina [24]
<span>-17-2x=6-x
-2x + x = 6 + 17
-x = 23
 x = -23</span>
7 0
3 years ago
Read 2 more answers
LA and B are complementary angles. If m ZA = (6x +29) and m
atroni [7]

Answer:

b

Step-by-step explanation:

qqqqqqqkkkkkkkkkk

6 0
2 years ago
( m + 4 ) ( m + 1 )
love history [14]
(m+4)(m+1)

=m^2+5m+4........
3 0
3 years ago
Other questions:
  • Consider a cube with side lengths of 6 cm. What is the capacity of the cube in milliliters?   18 mL 0.18 mL 0.216 mL 216 mL
    6·1 answer
  • If y varies directly as x, and y is 6 when x is 72, what is the value of y when x is 8?
    12·2 answers
  • The table shows the mean monthly temperatures in Alcudia for the last 2 years in degrees Celsius. °C Jan Feb Mar Apr May Jun Jul
    12·1 answer
  • I. B=C
    8·1 answer
  • Ursula bought 9 dozen rolls of first- aid tape for the health office. The rolls were divided equally into 4 boxes. How many roll
    9·1 answer
  • An art class is making a mural for their school which has a triangle drawn in the middle. The length of the bottom of the triang
    13·1 answer
  • What is the value of the expression below?
    15·1 answer
  • To determine how many pages would be needed to make 3 books, you can use the equation 138 = (46)3. How many pages would be in 8
    6·1 answer
  • Help! “Ms.Day drew a rectangle on the board with a width of 14 cm and a digo al length of 50 cm. Find the length of this rectang
    7·1 answer
  • I need help with this pls very great full
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!