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
Zepler [3.9K]
3 years ago
8

A 750.0 mL solution contains 5.00 g of NaOH. If the molar mass of NaOH is 39.9969 g/mol, what is the molarity of the solution? (

3 points)
25 M N OH
0.167 M N OH
5,98 M N OH
O 0,0891 M NaOH

help please
Chemistry
1 answer:
Ghella [55]3 years ago
8 0

Answer:

0.167 M NaOH

Explanation:

You might be interested in
Someone please help me:
Stels [109]

Answer: The number to the left of AC should be 6.

Explanation: The balanced chemical reaction is one in which the number of atoms  of each element on the reactant side must be equal to the number of atoms on product side.

The given equation A_2B + DC_3 \rightarrow AC + D_2B_3 is unbalanced as the atoms on the reactant side are not same as number of  atoms on product side. This equation is called as skeletal equation.

The balanced chemical equation is :

3A_2B + 2DC_3 \rightarrow 6AC + D_2B_3

Thus the number to the left of AC is 6.


6 0
2 years ago
Read 2 more answers
Which statement accurately describes non renewable energy sources ?
xz_007 [3.2K]

a resource that cannot be replenished in a short period of time

5 0
3 years ago
Read 2 more answers
onsider the reversible dissolution of lead(II) chloride. P b C l 2 ( s ) − ⇀ ↽ − P b 2 + ( a q ) + 2 C l − ( a q ) PbClX2(s)↽−−⇀
Sveta_85 [38]

Answer:

9.34x10^-4

Explanation:

Step 1:

The balanced equation for the reaction.

PbCl2( s ) <=> Pb^2+(aq) + 2Cl^−(aq)

Step 2:

Data obtained from the question:

Mass of PbCl2 = 0.2393 g

Volume = 50mL

concentration of Pb^2+, [Pb^2+] = 0.0159 M

Concentration of Cl^-, [Cl^-] = 0.0318 M

Equilibrium constant, Kc =?

Step 3:

Determination of the number of mole PbCl2.

The number of mole of PbCl2 can be obtained as follow:

Molar Mass of PbCl2 = 207 + (35.5x2) = 278g/mol

Mass of PbCl2 = 0.2393 g

Number of mole =Mass /Molar Mass

Number of mole of PbCl2 = 0.2393/278 = 8.61x10^-4 mole

Step 4:

Determination of Molarity of PbCl2.

At this stage we shall obtain the molarity of PbCl2. This is shown below:

Mole of PbCl2 = 8.61x10^-4 mole

Volume = 50mL = 50/1000 = 0.05L

Molarity of PbCl2 =?

Molarity = mole /Volume

Molarity of PbCl2 = 8.61x10^-4/0.05

Molarity of PbCl2 = 0.01722 M

Step 5:

Determination of the equilibrium constant Kc.

PbCl2( s ) <=> Pb^2+(aq) + 2Cl^−(aq)

The equilibrium constant Kc for the equation above is given by:

Kc = [Pb^2+] [Cl^-]^2 / [PbCl2]

[Pb^2+] = 0.0159 M

[Cl^-] = 0.0318 M

[PbCl2] = 0.01722 M

Kc =?

Kc = [Pb^2+] [Cl^-]^2 / [PbCl2]

Kc = 0.0159 x (0.0318)^2/ 0.01722

Kc = 9.34x10^-4

5 0
3 years ago
Which of the following items are true of early nuclear science?
ValentinkaMS [17]
The items that are true of early nuclear science are "the first nuclear reactions were done in the 1880s" and "the first nucleus split was uranium-235." <span>The answers are letters A and D. It is impossible that nucleus was lost during the reaction as it will not follow the law of mass conservation.

</span>
7 0
3 years ago
The most familiar elements are typically the most
rodikova [14]

-Are the most used in daily life and basic human needs

(such as oxygen,nitrogen,carbon, etc)

4 0
3 years ago
Read 2 more answers
Other questions:
  • You want to analyze a cadmium nitrate solution. what mass of naoh is needed to precipitate the cd2+ ions from 32.7 ml of 0.499 m
    15·1 answer
  • What is the formula of titanium(II) oxide?(1) TiO (3) Ti2O(2) TiO2 (4) Ti2O3
    6·1 answer
  • Jack hypothesize that more mold will grow on a slice of bread that is left in the dark that a slice of bread left in the light h
    5·1 answer
  • the temperature of 5.0 × 10g of water in a calorimeter is raised 15.0c. calculate the heat transferred in calories
    13·1 answer
  • Eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee question in picture
    15·1 answer
  • Why didn't the gummy bears placed in corn syrup and baby oil increase in size?
    13·2 answers
  • Plz HELP ITS SCIENCE!
    9·2 answers
  • Problem
    14·1 answer
  • How does cardon enter the soil
    11·1 answer
  • An organic molecule consists of carbon, hydrogen, oxygen, nitrogen, and sulfur; the molecule is probably an amino acid. carbon d
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!