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
lesya [120]
3 years ago
12

Suppose you were preparing 1.0 L of a bleaching solution in a volumetric flask, and it calls for 0.21 mol of NaOCl. If all you h

ad available was a jug of bleach that contained 0.82 M NaOCl, what volume of bleach would you need to add to the volumetric flask before you added enough water to reach the 1.0 L line?
Chemistry
2 answers:
Ilya [14]3 years ago
7 0

Answer:

V₁ = 0.26 L

Explanation:

The final solution requires 0.21 moles in  V₂ = 1.0 L, which means a concentration of C₂ = 0.21 mol / 1.0 L = 0.21 M. The concentration of the initial solution is C₁ = 0.82 M. We can find the volume V₁ required using the dilution rule.

C₁ × V₁ = C₂ × V₂

0.82 M × V₁ = 0.21 M × 1.0 L

V₁ = 0.26 L

yulyashka [42]3 years ago
3 0

Answer:

0.256 L  

Explanation:

We should use the following formula:

concentration (1) × volume (1) =  concentration (2) × volume (2)

concentration (1) = 0.82 M NaOCl

volume (1) = ?

concentration (2) = 0.21 M NaOCl

volume (2) = 1 L

volume (1) = [concentration (2) × volume (2)] / concentration (1)

volume (1) = [0.21 / 1] / 0.82 = 0.256 L

You might be interested in
What can you extract from a refinery
Dmitrij [34]

Answer:

i dont know ask the man behind the man

Explanation:

4 0
3 years ago
If you are calculating the grams to mL ratio, you are trying to find the object’s…
Alex

Answer:

Density

Explanation:

The ratio of mass to the volume of an object is called its density. Unit of mass is grams and that of volume is mL.

Density = mass/volume

\text{Density}=\dfrac{\text{grams}}{\text{mL}}\\\\=\text{grams/mL}

If you are calculating the grams to mL ratio, it means that we are trying to find the object's density.

4 0
3 years ago
What is the definition of Axis of rotation
il63 [147K]

Answer: an invisible line around which an object rotates, or spins.

Explanation: //Give thanks(and or Brainliest) if helpful (≧▽≦)//

6 0
3 years ago
What is the temperature of 0.5 moles of water vapor that occupies 120 dm3 and applies a pressure of 15,000 Pa to its container?
MArishka [77]
Use the ideal gas law:

PV = nRT

so, T = PV / nR

n=0.5
V= 120 dm^3 = 120 L  (1 dm^3 = 1 L)
R = 1/12
P = 15,000 Pa =  0.147 atm     (1 pa = 9.86 10^{-6} )

Put the values:

T = PV / nR
T = (0.147) (120) / (0.5) (1/12)
T= 426 K
6 0
3 years ago
What happens to glucose in the Calvin cycle? <br><br> Plz help
Leona [35]

The reactions of the Calvin cycle add carbon from carbon dioxide in the atmosphere to a five-carbon molecule known as RuBP. These reactions use chemical energy that were produced in the light reactions, from NADPH and ATP. The final product of the Calvin cycle is glucose.

7 0
3 years ago
Other questions:
  • Chem homework, help?
    9·1 answer
  • Which planet likely has flowing liquid metallic hydrogen as a source of its magnetic field?
    11·2 answers
  • When a liquid is heated, the temperature stops rising at the liquid’s ____________________.
    9·2 answers
  • The molar mass of monopotassium phosphate is 136.09 g/mol. How many moles of monopotassium phosphate are needed to make 250.0 ml
    12·1 answer
  • Which unit of size are the smallest organisms found on Earth?
    13·2 answers
  • Use the following equation to answer the question below:
    12·1 answer
  • How many moles are in 72g of NaOH
    7·1 answer
  • You wish to make a 0.405 M hydrochloric acid solution from a stock solution of 3.00 M hydrochloric acid. How much concentrated a
    5·1 answer
  • Can I have help with Environmental Science? Explain how a GIS can model the ways that changes in climate can influence human act
    7·1 answer
  • The number of protons + number of neutrons is<br> equal to the
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!