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
krok68 [10]
3 years ago
15

What is the mole fraction of HCl in a solution that contains 0.99 mole HCl and 3.6 mole H2O

Chemistry
1 answer:
marysya [2.9K]3 years ago
4 0

Answer:

  0.216

Explanation:

The mole fraction of HCl is the number of moles of HCl (0.99) divided by the total number of moles in the solution.

  mole fraction = (0.99)/(0.99 +3.6) = 0.2157

The mole fraction of HCl is about 0.216.

You might be interested in
Is there a relationship between the locations of earthquake, volcanoes, and plate boundaries? If so, describe the relationship.
Naddik [55]

Answer:

and earthquake epicenters are related to tectonic plate boundaries. causes Earth's plates to move. Most volcanoes and earthquakes are caused by the motion and interaction of Earth's plates. The way Earth's plates interact at boundaries is an important factor in the locations of earthquakes and volcanoes

Explanation:

5 0
2 years ago
64 ounces to liters in unit conversion form
Pie

Answer:

Explanation:fl oz L

64.00 1.8927

64.01 1.8930

64.02 1.8933

64.03 1.8936

3 0
3 years ago
Read 2 more answers
Is heating sulfur and copper a physical or chemical change?
Nataly [62]
It would be a chemical change
7 0
3 years ago
How many atoms are in 2.10 g of K? molar mass of K=39.10g/mole.
Alborosie

Answer:

<h3>The answer is option B</h3>

Explanation:

To calculate the number of atoms we must first calculate the number of moles

Molar mass = mass / number of moles

number of moles = mass / Molar mass

Molar mass (K) = 39.10mole

mass = 2.10g

number of moles = 2.10/ 39.10

= 0.0537mol

After that we use the formula

N = n × L

where n is the number of moles

N is the number of entities

L is the Avogadro's constant which is

6.02 × 10^23 entities

Number of K atoms is

N = 0.0537 × 6.02 × 10^13

<h3>N = 3.23×10^22 atoms of K</h3>

Hope this helps you.

5 0
3 years ago
An iron has a net charge of 3+. If this job has 8 protons, how many electrons does it have
kati45 [8]

Answer:

5 electrons

Explanation:

When an atom loses are gain the electrons ions are formed.

There are two types of ions.

Anion

Cation

1 = Anion

It is formed when an atom gain the electrons. when atom gain electron negative charge is created on atom. For example.

X + e⁻ → X⁻

2= Cation

It is formed when an atom loses the electrons. when atom lose electron positive charge is created on atom. For example.

X → X⁺ + e⁻

When an atom loses three electrons +3 charge is created. If this atom have 8 protons it means there were 8 electrons too. When it lost three electrons then remaining number of electrons are 5.

X → X³⁺ + 3e⁻

4 0
3 years ago
Other questions:
  • How is the periodic table of the elements arranged?
    6·2 answers
  • Which of the following is true regarding the speed of earthquake waves?
    14·2 answers
  • Please help me with these asap!
    7·1 answer
  • 17. When 1 mol of the following substances react completely with oxygen, the
    10·2 answers
  • Which do all groups of plants have these are the choices A.chloroplasts B.roots C.spores D.tubes
    15·2 answers
  • Name one state of matter
    5·2 answers
  • 11 D. Organism 4 When Charles Darwin observed finches on the Galapagos Islands, he noted differences in the shapes of birds' bea
    15·1 answer
  • A rigid 7.80 L sealed vessel containing 2.700 mol of O2(g), 0.600 mol of C2H4(g), and 2.400 mol of Ne(g) has an internal tempera
    10·1 answer
  • What is chlorine anyone tell​
    10·2 answers
  • A particle-level diagram of a metallic element is shown above. Typically, metals are both malleable and ductile. The best explan
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!