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
Setler79 [48]
3 years ago
11

if the percent by volume is 2% and the volume of solution is 250 mL what is the volume of solute and solution

Chemistry
1 answer:
Liula [17]3 years ago
5 0

Answer:

Solute = 5 mL; solution = 250 mL  

Explanation:

The formula for percent by volume is

\text{Percent by volume} = \dfrac{\text{Volume of solute}}{\text{Volume of solution}}\times 100 \, \%

If you have 250 mL of a solution that is 2 % v/v,

\begin{array}{rcl}2 \, \% & = & \dfrac{\text{Volume of solute}}{\text{250 mL}}\times 100 \, \%\\\\2 \times \text{ 250 mL} & = & \text{Volume of solute} \times 100\\\text{Volume of solute} & = & \dfrac{2 \times 250\text{ mL}}{100}\\\\ & = & \textbf{5 mL}\\\end{array}

If there is no change of volume on mixing,

Volume of solution = 250 mL

 -Volume of solute = <u>     </u><u>5</u><u>      </u>

 Volume of solvent = 245 mL

You might be interested in
The reaction of hydrogen and iodine to produce hydrogen iodide has a Kc of 54.3 at 703 K. Given the initial concentrations of H2
pentagon [3]

Answer:

[HI] = 0.7126 M

Explanation:

Step 1: Data given

Kc = 54.3

Temperature = 703 K

Initial concentration of H2 and I2 = 0.453 M

Step 2: the balanced equation

H2 + I2 ⇆ 2HI

Step 3: The initial concentration

[H2] = 0.453 M

[I2] = 0.453 M

[HI] = 0 M

Step 4: The concentration at equilibrium

[H2] = 0.453 - X

[I2] = 0.453 - X

[HI] = 2X

Step 5: Calculate Kc

Kc = [Hi]² / [H2][I2]

54.3 = 4x² / (0.453 - X(0.453-X)

X = 0.3563

[H2] = 0.453 - 0.3563 = 0.0967 M

[I2] = 0.453 - 0.3563 = 0.0967 M

[HI] = 2X = 2*0.3563 = 0.7126 M

3 0
3 years ago
HELP ASAP I will give you a brainliest
mixer [17]

Answer: its the first one buster

3 0
2 years ago
The diagram below shows a cell placed in a solution.
Sholpan [36]

it will expand as water moves into it.


3 0
2 years ago
The combustion of hydrogen and oxygen is commonly used to
posledela

Answer:

6.66 mol

Explanation:

(atm x L) ÷  (0.0821 x K)

(0.875 x 250) ÷  (0.0821 x 400)

=6.66108

5 0
2 years ago
D5W is a solution used as an intervenous fluid.It is 5.0% by mass solution of the dextrose (C6H12O6) in water. if the density of
Alona [7]

Answer:

0.29 mol/L

Explanation:

Its density is 1.029 g/ml so in a liter (1000 mL) there is 1029 g of solution, but only 5% is dextrose.

0.05x1029=51.45

So in a liter of D5W solution there is 51.45 g of dextrose.

Dextrose molar mass iss 180.156 g/mol, so in 51.45 g of dextrose there is

51.45/180.156=0.29 mol

In one liter of solution there is 0.29 mol of dextrose, so the molarity of such solution is 0.29 mol/L.

6 0
3 years ago
Other questions:
  • Farmer brown is planting crops in his feild s. He wants to prevent the topsoil from being blown away by the wind or washed away
    12·2 answers
  • Phosphorus has an atomic mass of 31 and an atomic number of 15, so the number of neutrons must be _______________.
    11·1 answer
  • An aqueous solution of calcium hydroxide is standardized by titration with a 0.117 M solution of hydrobromic acid.
    7·1 answer
  • How many kilograms of water at 15oC can be heated to 95oC by burning 143 grams of methane, CH4, assuming that 100% of the heat i
    10·1 answer
  • We might think of a porous material as being a composite wherein one of the phases is a pore phase. Estimate upper and lower lim
    11·1 answer
  • First person with the right answer gets brainliest thanks (btw the numbers on the right are the answers choose the right one)
    13·2 answers
  • While following the Dumas method, a student assumes that the contents of the container are the same temperature as the water bat
    6·1 answer
  • When a rotting log was turned over, pill bugs, termites , ants , fungi , and earthworms were living there. the termites represen
    12·1 answer
  • Give examples of how land resources are used in a city setting
    12·2 answers
  • Help please all please
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!