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
pshichka [43]
3 years ago
6

The formula for a buffer solution contains 1.24% w/v of boric acid. How many milli-liters of a 5% w/v boric acid solution should

be used to obtain the boric acid needed in preparing 1 liter of the buffer solution?
Mathematics
1 answer:
Oksanka [162]3 years ago
4 0

Answer: 248mL

Step-by-step explanation:

Given:

Concentration of buffer solution Cs = 1.24%w/v of boric acid

Concentration of boric acid solution Cb = 5 % w/v boric acid

For 1 liter of buffer solution, the weight of boric acid needed is:

mb = 1 × 1.24 = 1.24 unit weight

mb = Cb × Vb .....1

Cb = concentration of boric acid solution.

Vb = volume of boric acid solution needed.

mb = weight of boric acid needed.

From equation 1.

Vb = mb/Cb

Vb = 1.24/5

Vb = 0.248L

Vb = 248mL

You might be interested in
On a map of Kereiakes Park in Bowling Green, the tennis courts are located at (-6, -1).The basketball courts are located at 10 u
Tema [17]

Answer:In 1969, Mao suggested the end of the Cultural Revolution. ... After Mao's death and the arrest of the Gang of Four in 1976, the Cultural Revolution finally came to an end. The Cultural Revolution damaged China's economy and traditional culture, with an estimated death toll ranging from hundreds of thousands to 20 million.

Step-by-step explanation:

3 0
3 years ago
PLEASE HELPPPPPPPPPPPP!!!!!!! IM BEING TIMEDDDDDD
Ludmilka [50]

Answer:

119°

Step-by-step explanation:

the angles of a triangle make 180° (so does a straight line) therefore

180 (triangle) = a + c + 51

to find c:

180 (straight line) = 112 + c

c = 180 - 112

c = 68°

now we have

180 (triangle) = a + 68 + 51

to find a:

a = 180 - (68 + 51)

a = 180 - 119

a = 61°

to find b:

180 (straight line) = 61 + b

b = 180 - 61

b = 119°

7 0
2 years ago
Find the great is perfect square of 244
IgorLugansk [536]
I hope this helps you



244=4.61


2square roof 61
7 0
4 years ago
PLEASE HELP QUICKK I HAVE TO GO TO BED SOON
inna [77]

Answer:

it's 12% goodnight to you

7 0
3 years ago
Read 2 more answers
If the ball is not caught, how long will it be in the air?
ale4655 [162]

Wow this is a good question whatttt

5 0
3 years ago
Other questions:
  • 8x10 exponent -3 is how many times as great as 4x10 exponent -6
    11·1 answer
  • The formula for the perimeter of a rectangle can be expressed in more than one way. One way is P=2(l + w). Discuss how you could
    15·1 answer
  • It costs$5820 to get new windows for a certain house. Each of the 28 windows costs the same amount.
    9·2 answers
  • Need help with10-12please
    12·1 answer
  • I don't understand. Please help me. I don't understand. Please help me.
    7·1 answer
  • What two negative consecutive integers have a sum off -55
    13·1 answer
  • The polynomial V(x)=x^3+9x^2-16x-144 represents volume of a shipping crate. Explain how to find the area of the base of the crat
    5·1 answer
  • How do you simplify square roots.​
    10·1 answer
  • Ram sold a goat for Rs. 4500 at a profit of 20%. what will be the purchased price?
    11·1 answer
  • Can you help me with this
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!