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
WITCHER [35]
2 years ago
7

What is the molarity of aqueous lithium bromide if 25.0 mL of LiBr reacts with 10.0 mL of 0.250 M Pb(NO 3) 2

Chemistry
1 answer:
bixtya [17]2 years ago
3 0

The molarity of aqueous lithium bromide, LiBr solution is 0.2 M

We'll begin by calculating the number of mole of Pb(NO₃)₂ in the solution.

  • Volume = 10 mL = 10 / 1000 = 0.01 L
  • Molarity of Pb(NO₃)₂ = 0.250 M
  • Mole of Pb(NO₃)₂ =?

Mole = Molarity x Volume

Mole of Pb(NO₃)₂ = 0.25 × 0.01

Mole of Pb(NO₃)₂ = 0.0025 mole

Next, we shall determine the mole of LiBr required to react with 0.0025 mole of Pb(NO₃)₂

Pb(NO₃)₂ + 2LiBr —> PbBr₂ + 2LiNO₃

From the balanced equation above,

1 mole of Pb(NO₃)₂ reacted with 2 mole of LiBr.

Therefore,

0.0025 mole of Pb(NO₃)₂ will react with = 2 × 0.0025 = 0.005 mole of LiBr

Finally, we shall determine the molarity of the LiBr solution

  • Mole = 0.005 mole
  • Volume = 25 mL = 25 / 1000 = 0.025 L
  • Molarity of LiBr =?

Molarity = mole / Volume

Molarity of LiBr = 0.005 / 0.025

Molarity of LiBr = 0.2 M

Learn more about molarity: brainly.com/question/10103895

You might be interested in
Miranda gets a small cut on her thumb after she breaks a beaker, and she begins to look around for the lab first aid kit. What i
astraxan [27]

she should have first notified her teacher.

9 0
3 years ago
Read 2 more answers
13. An aerosol spray can of deodorant with a volume of 0.410 L contains 3.0 g of propane gas (CH3) as propellant. What is the pr
qaws [65]

Answer: The pressure in the can is 4.0 atm

Explanation:

According to ideal gas equation:

PV=nRT

P = pressure of gas = ?

V = Volume of gas = 0.410 L

n = number of moles = \frac{\text {given mass}}{\text {Molar mass}}=\frac{3.0g}{44.1g/mol}=0.068mol

R = gas constant =0.0821Latm/Kmol

T =temperature =20^0C=(20+273)K=293K

P=\frac{nRT}{V}

P=\frac0.068mol\times 0.0820 L atm/K mol\times 293K}{0.410L}=4.0atm

Thus the pressure in the can is 4.0 atm

8 0
3 years ago
Which substance is an electrolyte? 1. O2 2. Xe 3. C3H8 4. KNO3
Troyanec [42]
KNO3 is an electrolyte
3 0
3 years ago
When two your substances are combined so that each of the pure substances retains its own properties the result is a(n)?A. mixtu
goblinko [34]
Mixture is the answer 
8 0
3 years ago
Plants use sunlight from the atmosphere during the process of
Nastasia [14]

Answer:

photosynthesis

Explanation:

6 0
3 years ago
Read 2 more answers
Other questions:
  • Calculate the wavelength of the light emitted when an electron in a one-dimensional box of length 5.4 nmnm makes a transition fr
    14·1 answer
  • When a chemist collects hydrogen gas over water, she ends up with a mixture of hydrogen and water vapor in her collecting bottle
    5·2 answers
  • An atom has 8 protons, 8 neutrons, and 8 electrons. another isotope of the same element might have
    6·2 answers
  • What is the advantage of using inert gasses in a process?
    6·1 answer
  • An object weighing 10 grams is spinning in a centrifuge such that an acceleration of 13.0 g is imposed to it. The arm connecting
    13·1 answer
  • Why should distilled water be used when conducting chemical tests?
    8·1 answer
  • A precipitation reaction 2. A Lewis acid-base reaction the produces a coordination complex: A Lewis acid-base reaction the produ
    15·1 answer
  • Which part of the human nervous system links the brain to the rest of the body
    8·1 answer
  • What does testable mean
    9·2 answers
  • How are organelles connected to cell theory?
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!