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
yan [13]
4 years ago
15

93.2 mL of a 2.03 M potassium fluoride (KF) solution is diluted with 3.92 L of water.

Chemistry
1 answer:
pishuonlain [190]4 years ago
5 0

Answer:

0.047 M

Explanation:

Given data:

Volume of KF = 93.2 mL

Molarity of KF = 2.03 M

volume of water added= 3.92 L

Solution:

First of all we will calculate the number of moles of KF.

number of moles = Molarity × volume in litter

number of moles = 2.03 mol/L × 0.0932 L

number of moles = 0.189 mol

Molarity of solution:

Total volume =  3.92 L + 0.0932 L = 4.0132 L

Molarity = number of moles / volume in litter

Molarity = 0.189 mol/ 4.0132 L

Molarity = 0.047 M

You might be interested in
The graph shows the changes in the phase of ice when it is heated.
kow [346]

Answer:

A) 0 °C, because it is the melting point of ice.

Explanation:

  • Point B is the temperature at which the water is converted from ice (solid phase) to liquid water (liquid phase), which is the melting transition of water.

Melting point of the water is at 0.0°C.

<em>So, the right choice is: A) 0 °C, because it is the melting point of ice. </em>

<em></em>

6 0
3 years ago
Read 2 more answers
Which of the following statements provide evidence to support the big bang theory? Select the two correct answers. i need help p
Leona [35]

Answer:

See explaination

Explanation:

CBR (Cosmic Background Radiation)-

Uniform energy that is heard everywhere in the universe. It supports the Big Bang Theory because we can assume that it also started in the same place.

Hubble's Law-

Hubble's Law states that the planets are getting farther away from eachother, therefore, the universe is expanding and must have started as a smaller piece.

8 0
3 years ago
How many moles of water are produced from 13.35 mol of oxygen?
olganol [36]

Answer:

The answer is 26.70

4 0
3 years ago
Throughout the reflection, make sure you have a copy of the Student Guide and your data tables. Fill in the terms
gregori [183]

Answer:

Convection, and boundaries

Explanation:

In this lab, you modeled how plates move. The plates that make up Earth’s lithosphere move because of convection . You also saw how plates interact with each other. The interactions between plates form plate boundaries of which there are three main types.

3 0
3 years ago
Read 2 more answers
A football was thrown 25m for a touchdown in 2.5s, How fast was the ball traveling?
Verizon [17]

Answer:

V=?

S=25m

t=2.5s

V=S/t

V=25/2.5

V=10m/s

So, the ball was traveling with the speed of 10m/s.

6 0
3 years ago
Other questions:
  • Magnesium has 2 valence electrons, and oxygen has 6 valence electrons. Which type of bonding is likely to occur between a magnes
    7·1 answer
  • Where does the formation of rocks began
    8·1 answer
  • Help me out anybody plz
    10·2 answers
  • The atomic number is the number of protons in the atom of the element
    10·1 answer
  • Which of the following statements is always TRUE for the freezing of water?
    13·1 answer
  • Please help ill give you brainiest
    8·1 answer
  • 2. How does an atom of aluminum become an ion?
    14·1 answer
  • Calculate the mass and charge of one mole of electrons​
    13·1 answer
  • A. How many grams are in 9.62 x 10 23 atoms of Magnesium? ( the 23 is supposed to be the 23rd power)
    9·1 answer
  • How many total moles of ions are released when 0.0341 moles of Na2HPO4 dissolves completely in water
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!