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
9966 [12]
2 years ago
14

What is the molar concentration of potassium ions in a 0. 250 m k2so4(aq) solution?

Chemistry
1 answer:
boyakko [2]2 years ago
7 0

The molar concentration of potassium ions in a  0. 250 m K₂SO₄(aq) solution is 2.

<h3>What is molar concentration?</h3>

The molar concentration of a solution is the presence of solute in one unit of a solution.

Molar concentration = number of moles / volume

The volume is given 0.250 m

To calculate the number of moles:

There will be 2 moles of potassium and  1 mole of sulfate in one L of the solution.

So in 0.250 L

0.250 x 2 x 1 = 0.500

The total number of moles of potassium and sulfate ion are 0.500

Now, putting the value:

Molar concentration = number of moles / volume

0.500 / 0.250 = 2

Thus, the molar concentration is 2.

To learn more about molar concentration, refer to the below link:

brainly.com/question/21841645

#SPJ4

You might be interested in
6. Explain a situation in which elastic potential energy could be transformed into kinetic energy.
dsp73

Answer:

When you pull a rubber band there is elastic potential energy stored in the rubber band but once you let go of either side the EPE turns into Kinetic Energy.

6 0
3 years ago
Does sugar dissolved in pure water conduct electricity
marissa [1.9K]

Answer:

When sugar is dissolved in water, the solution does not conduct electricity, because there are no ions in the solution. Some substances that are made of molecules form solutions that do conduct electricity. Ammonia is such a substance.

7 0
3 years ago
Read 2 more answers
N2(g) + 3H2(g) → 2NH3(g) How many grams of N2 are required to produce 240.0g NH3?
just olya [345]

Answer:

\large \boxed{\text{197.4 g}}

Explanation:

We will need a chemical equation with masses and molar masses, so, let's gather all the information in one place.

Mᵣ:     28.01               17.03

            N₂ + 3H₂ ⟶ 2NH₃

m/g:                          240.0

(a) Moles of NH₃

\text{Moles of NH}_{3} = \text{240.0 g NH}_{3}\times \dfrac{\text{1 mol NH}_{3}}{\text{17.03 g NH}_{3}}= \text{14.09 mol NH}_{3}

(b) Moles of N₂

\text{Moles of N$_{2}$} = \text{14.09 mol NH}_{3} \times \dfrac{\text{1 mol N$_{2}$}}{\text{2 mol NH}_{3}} = \text{7.046 mol N$_{2}$}

(c) Mass of N₂

\text{Mass of N$_{2}$} =\text{7.046 mol N$_{2}$} \times \dfrac{\text{28.01 g N$_{2}$}}{\text{1 mol N$_{2}$}} = \textbf{197.4 g N$_{2}$}\\\\\text{The reaction requires $\large \boxed{\textbf{197.4 g}}$ of N$_{2}$}

7 0
3 years ago
Read 2 more answers
What is the mass of sodium (Na) in 50 grams of table salt (NaCl)? Show your work.
Margaret [11]

Answer:

19 g

Explanation:

Data Given:

Sodium Chloride (table salt) = 50 g

Amount of sodium (Na) = ?

Solution:

Molecular weight calculation:

NaCl = 23 + 35.5

NaCl = 58.5 g/mol

Mass contributed by Sodium = 23 g

calculate the mole percent composition of sodium (Na) in sodium Chloride.

Since the percentage of compound is 100

So,

Percent of sodium (Na) = 23 / 58.5 x 100

Percent of sodium (Na) = 39.3 %

It means that for ever gram of sodium chloride there is 0.393 g of Na is present.

So,

for the 50 grams of table salt (NaCl) the mass of Na will be

mass of sodium (Na) = 0.393 x 50 g

mass of sodium (Na) = 19 g

8 0
4 years ago
Read 2 more answers
W. E. B. Du Bois and Booker T. Washington most
Xelga [282]
The answer is (3) methods to achieve racial equality.

Both Du Bois and Washington had different views on how to promote equality, Du Bois emphasized education and immediate political equality while Washington was more concerned with economic equality in industrial and agriculture
8 0
3 years ago
Other questions:
  • Which of the following statements is not correct?
    6·1 answer
  • The j shaped organ is full of hydrochloric acid
    5·1 answer
  • Complete the acid-base reaction between butyric acid HC4H7O2 and potassium hydroxide KOH.
    11·1 answer
  • What element marks the boundary between using fusion and fission to release energy?
    6·1 answer
  • Sodium hydroxide is available commercially as a 50.0% by weight aqueous solution. The density of the solution is 1.53 g/mL. Calc
    5·1 answer
  • Which scientist was the first to propose the hellocentric model of the universe?
    6·1 answer
  • Which statement best describes the relationship between changes in air pressure and wind speeds?
    7·2 answers
  • Compare the nuclear charge of nitrogen to oxygen on the valance electrons.
    12·1 answer
  • If a compound pulley has four
    6·1 answer
  • What is the percent composition of nitrogen in N2S2
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!