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
Aleks [24]
3 years ago
13

How many liters of water are needed to make a 4.00 M solution using 75.0

Chemistry
1 answer:
timurjin [86]3 years ago
7 0

Answer:

0.22L

Explanation:

Given parameters:

Concentration of solution  = 4.00M

Mass of lithium Bromide  = 75g

Unknown:

Volume of water  = ?

Solution:

Concentration in terms of the molarity is the number of moles of solute in a solution.

   Molarity  = \frac{number of moles }{volume of solution}

let us find the number of moles first;

Number of moles  = \frac{mass}{molar mass}  

  Molar mass of LiBr =  7 + 80  = 78g/mol

                                 number of moles  = \frac{75}{78}

                                 number of moles  = 0.96moles

Volume of water  = \frac{number of moles }{molarity}   = 0.96/4 = 0.22L

You might be interested in
Name at least 4 other gases in the atmosphere besides oxygen and nitrogen
BartSMP [9]
<span><span>Argon,</span><span>Carbon dioxide,</span><span>Neon,</span><span>Helium, and </span><span>Methane</span></span>
5 0
3 years ago
Read 2 more answers
F liquid water runs into an open space within a rock, like a crack, and the temperature drops to the freezing point of water, wh
vodomira [7]

Answer:

b or c is the answer

Explanation:

brainlest plz

4 0
2 years ago
Read 2 more answers
Emerald Robinson described what chemistry is. What is it not? Select one: O a. The study of matter, properties of matter, and ho
Alja [10]

Answer:

The central science

Explanation:

D

Pls mark the brainliest

8 0
2 years ago
How many electrons are in O2-?
aleksandr82 [10.1K]
There are 16electrons in 02
4 0
3 years ago
Read 2 more answers
Answer the following questions. When you have finished, submit this assignment to your teacher by the due date for full credit.
Stells [14]

Answer:

1. chloroplast

2. they prevent some proteins to function how they normally function

Explanation:

3 0
2 years ago
Other questions:
  • What can neutrons change into
    6·1 answer
  • the temperature of a sample of water increases from 20celsius to 46.6celsius as it absorbs 5650 J of heat. what is the mass of t
    15·1 answer
  • Calculate the number of moles of potassium permanganate (KMnO4) corresponding to 230.8 g of the substance.
    10·1 answer
  • ______ will have a higher entropy than 50.0 g CO2 (g) at 56 oC.
    6·1 answer
  • Explain why the magnesium can be stretched to form magnesium ribbon...??
    14·1 answer
  • Which of the following is a change from a less condensed to a more condensed state of matter?. . Boiling. . Evaporating. . Conde
    15·2 answers
  • in an experiment 3.425g of lead oxide was reduced to form 3.105g of lead the empirical formula of the lead oxide is?​
    9·1 answer
  • 3. How many oxygen atoms are there in 5.0 mol of water?
    6·1 answer
  • What is the mass of 2.15 moles of calcium hydroxide, Ca(OH)2?
    11·1 answer
  • A nuclear magnetic resonance, or NMR, spectrometer is an instrument that can be used to characterize molecules based upon the ex
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!