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
Blizzard [7]
2 years ago
6

How many moles of nacl are required to prepare 0.80 l of 6.4 m nacl? 0.13 mol nacl 5.1 mol nacl 7.2 mol nacl 8.0 mol nacl?

Chemistry
2 answers:
fomenos2 years ago
5 0
NaCl = n/V 

<span>6.4M = n/0.80L </span>

<span>n= 5.12mol</span>
dangina [55]2 years ago
3 0

Answer:

5.12 moles of NaCl are required to prepare 0.80 L of 6.4 M NaCl.

Explanation:

Molarity (M) is a concentration measure that indicates the number of moles of solute that are dissolved in a given volume.

The Molarity is then determined by:

Molarity (M)=\frac{number of moles of solute}{volume}

Molarity is expressed in units\frac{moles}{liter}.

6.4 M NaCl indicates that 1 liter of solution there are 6.4 moles of NaCl.

You can apply a rule of three as follows: if in 1 liter of solution there are 6.4 moles of NaCl, in 0.8 L how many moles are there?

moles=\frac{0.8 L*6.4 moles}{1 L}

moles=5.12

<u><em>5.12 moles of NaCl are required to prepare 0.80 L of 6.4 M NaCl.</em></u>

You might be interested in
When a small amount of 12 M HNO3(aq) is added to a buffer solution made by mixing CH3NH2(aq) and CH3NH3Cl(aq) , the pH of the bu
fredd [130]

Answer:

a. CH3NH2(aq) + H⁺ → CH3NH3⁺

Explanation:

The mixture of a weak base as CH3NH2 with its conjugate acid CH3NH3Cl produce a buffer. As the weak acid is in equilibrium with water, the mixture of the weak base and its conjugate base produce that the acid or base released react avoiding the change in pH.

For example, when a strong acid as HNO3 reacts, the weak base will react producing the conjugate base, that is:

CH3NH2(aq) + H⁺ → CH3NH3⁺

Right answer is:

<h3>a. CH3NH2(aq) + H⁺ → CH3NH3⁺</h3>

5 0
2 years ago
Select all that apply:
Katyanochek1 [597]
OPTION B & C are the answers....
5 0
2 years ago
What is the strongest type of intermolecular force between solve and solvent in Cu(s) in Ag(s)?
maks197457 [2]

The strongest intermolecular forces are in ion-ion bonds which happen when a metal bonds to another metal. 2. The next strongest forces are ion-dipole bonds which happen when metals bond to nonmetals. 3.

4 0
2 years ago
What substances pass through a leaf's stomata?
Lera25 [3.4K]
Oxygen and carbon dioxide
7 0
3 years ago
Read 2 more answers
Which reaction has a positive δs°? question 6 options:
Nastasia [14]
B. Because there are 3 molecules in right and 2 molecules in the left, so entropy rises.
3 0
2 years ago
Other questions:
  • What is the quantum number set of the ground-state electron that is found in lithium (Li) but not in helium (He)?
    15·1 answer
  • The nadph required for co2 fixation is produced __________.
    12·2 answers
  • All of the following are true about science except (2 points)
    15·1 answer
  • Helium (He), oxygen (O), carbon (C) fluorine (F), and chlorine (Cl) are all nonmetals. Using the periodic table, which pair of n
    9·1 answer
  • Study the timeline.
    14·2 answers
  • What would happen to a population if there were a change in the environment where the population lived
    10·1 answer
  • 12. Calculate the hydroxide ion concentration of a solution with pH = 10.25. Show all calculations leading to an answer.
    5·2 answers
  • What animals are in the Arctic Tundra?
    10·2 answers
  • How did elements get to earth?
    7·1 answer
  • Milk (pH 6.7)
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!