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
Keith_Richards [23]
3 years ago
8

If you have 2.0 moles of sodium chloride (NaCl), what is its mass in grams?

Chemistry
1 answer:
lana [24]3 years ago
6 0

Answer:

117g

Explanation:

Given parameters:

Number of moles = 2moles

Unknown:

Mass of NaCl  = ?

Solution:

To solve the problem, we need to use the expression below;

    Mass of NaCl  = number of moles x molar mass

Molar mass of NaCl  = 23 + 35.5  = 58.5g/mol

 

So;

Insert the parameters and solve;

     Mass of NaCl  = 2 x 58.5  = 117g

You might be interested in
What is the average atomic mass!?
Agata [3.3K]

Answer:

he average atomic mass of an element is the sum of the masses of its isotopes, each multiplied by its natural abundance

6 0
3 years ago
For which of the following reactions is ΔH∘rxn equal to ΔH∘f of the product(s)?
nexus9112 [7]
<span>The correct answers are A, B, and D. The ΔHrxn is equal to the ΔHf when the ΔHf of the reactants is zero, and this can only occur when the reactants are pure elements (not compounds) in their natural phase at ambient temperature.

c) Chlorine's natural phase is gaseous, but since it is a liquid in this reaction, ΔHf ≠ 0.

e) CO is a compound, not a pure element.

f) BaCO3 is a compound, not a pure element.</span>
6 0
3 years ago
Read 2 more answers
Describe two variables that affect the rate of diffusion
Katyanochek1 [597]

Answer:

The two variables affecting the rate of diffusion are the concentration gradient and size of the molecule. Concentration gradient: The movement of the substance is generally along the concentration gradient of the solute and it moves from a region of its higher concentration to a region of its lower concentration.

5 0
3 years ago
HELP DUE IN ONE HOUR PLS HELP <br> lons are formed when _____<br> are transferred between atoms.
Leona [35]
The Answer Should Be Electrons.
3 0
2 years ago
How many atoms are in 4.5 moles of Cu
sergeinik [125]

Answer:

4,5*6,02*10^23

Explanation:

The moles seem always complex topic but not in fact,

Consider that

1 mole of apple is 1 * 6,02*10^23

Same as 1 dozen of apple is 1 * 12

7 0
3 years ago
Other questions:
  • What kind of charge does a cation have
    11·2 answers
  • Carbon reacts with steam (h2o) at high temperatures to produce hydrogen and carbon monoxide. if 2 mol of carbon are exposed to 3
    12·1 answer
  • Eat at Joe's! Did you know that this neon sign is experiencing a change of state? When a neon sign lights up, like the one you s
    12·2 answers
  • Which of these performs the same function as the gasoline in a car
    15·2 answers
  • The Andes Mountains are found along the western coast of South America. Which kind of plate boundary is responsible for this mou
    10·1 answer
  • In the absence of sodium methoxide, the same alkyl bromide gives a different product. Draw an arrowpushing mechanism to account
    9·1 answer
  • Potassium (K) combines with magnesium bromide (MgBr2) to form potassium bromide (KBr) and magnesium (Mg) during a chemical react
    15·1 answer
  • What type of mixture will not allow light to pass through
    14·1 answer
  • Which instrument is used to observe space system from Earth?
    13·2 answers
  • Determine the number of moles in 382.5g of CO-2
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!