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
AlekseyPX
3 years ago
9

If 33.6 grams of KCl are dissolved in 192 grams of water, what is the concentration of the solution in percent by mass? (3 point

s)
Chemistry
1 answer:
Brums [2.3K]3 years ago
4 0
The answer here would be 14.9 %KCl and here is how I can explain why:
33.5g / 225.6g x 100% = 14.9% 
<span>you are looking for % of KCl in the solution, you have to add the mass of the KCl and water to get the total mass of the solution</span>
You might be interested in
What is an atomic number
rusak2 [61]
An atomic number is the number of protons that the atom of a particular element has. 

For example, take carbon. Carbon has 6 protons. It's atomic number is 6.
5 0
3 years ago
Suppose you start with one liter of vinegar and repeatedly remove 0.08 L, replace with water, mix, and repeat. a. Find a formula
Bumek [7]

Answer:

0.92^n

Explanation:

Given that :

Initial amount of vinegar = 1 Litre

Number of litres removed repeatedly = 0.08 Litre

Since the amount removed each time is constant, then ;

Initial % = 100% = 100/100 = 1

. Using the relation :

Amount of vinegar in mixture :

Initial * (1 - amount removed / initial amount)^n

n = number of times repeated

1 * (1 - 0.08/1)^n

1 * (1 - 0.08)^n

1 * 0.92^n

Hence,

For nth removal,

Concentration will be :

0.92^n ; for n ≥ 1

7 0
2 years ago
For any molecule at the surface the resulting surrounding forces equal zero
Katarina [22]
False is the correct answer
4 0
2 years ago
Read 2 more answers
Determine whether each molecule given below is polar or nonpolar. of2
sergejj [24]

Answer : The molecule OF_2 is a polar molecule.

Explanation :

Polar molecule : When the arrangement of the molecule is asymmetrical then the molecule is polar.

Non-polar molecule : When the arrangement of the molecule is symmetrical then the molecule is non-polar.

The given molecule is, OF_2

The electronegativities of oxygen and fluorine are different. The molecular geometry of OF_2 is bent. As, Fluorine is more elctronegative than the oxygen. So, the arrows putting towards the more electronegative element i.e, fluorine. These arrows do not balance each other. Due to this, the asymmetrical arrangement of these bonds makes the molecule polar.

Hence, the given molecule OF_2 is polar.

7 0
3 years ago
when the orbitals or energy levels of an atom are full, it is considered to be stable. which atom in the ground state has a stab
Sonbull [250]

Answer:

Noble gases, atoms which have complete filled outer orbits.

Explanation:

SInce, you have given no options elements like Neon, Helium,etc

7 0
2 years ago
Other questions:
  • Which statements describe how stars are born? Check all that apply. Stars are born in clouds of gas and dust called nebulas. The
    7·2 answers
  • Can you answer the following questions with work, please?A) The conversion of glucose-6-phosphate to fructose-6-phosphate is cat
    12·1 answer
  • Which of the following examples demonstrates acceleration? Question 17 options: A boy running at a constant speed across the str
    10·2 answers
  • In a particular reaction between copper metal and silver nitrate, 12.7 g cu produced 38.1 g ag. what is the percent yield of sil
    10·2 answers
  • The reaction of 2-chloropropane with sodium hydroxide can occur via both SN1 and SN2 mechanisms.
    5·1 answer
  • How many moles of CO are produced when 35.0 mol C2H2 react completely
    14·1 answer
  • How many moles of Na2CO3 are in 100.0ml of a 2.0M solution?
    11·1 answer
  • What is the molecular geometry? of CH3COOH
    10·1 answer
  • CAN YALL PLEASE HELP?!?!
    9·1 answer
  • The properties of a substance are not affected by chemical reactions.<br> O True<br> O False
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!