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
tester [92]
3 years ago
6

.950 L of .420 M H2SO4 is mixed with .900 L of .260 M KOH. What concentration of sulfuric acid remains after neutralization?

Chemistry
1 answer:
kipiarov [429]3 years ago
3 0
H₂SO₄:

V=0,95L
Cm=0,420mol/L

n = CmV = 0,42mol/L * 0,95L = 0,399mol

KOH:

V=0,9L
Cm=0,26mol/L

n = CmV = 0,26mol/L * 0,9L = 0,234mol

H₂SO₄            +           2KOH ⇒ K₂SO₄ + 2H₂O
1mol                :           2mol
0,399mol         :           0,234mol
                                    limiting reagent
reamins: 0,399mol - 0,117mol = 0,282mol

n = 0,282mol
V = 0,950L + 0,900L = 1,85L

Cm = n / V = 0,282mol / 1,85L ≈ 0,152M
You might be interested in
Solutions can be composed of:
Anika [276]

A solution may exist in any phase so your answer is D. any of the above

hope this helps :)

7 0
3 years ago
For what reasons would modern scientists accept dalton's atomic theory but not the idea of an atom proposed by the greek philoso
soldi70 [24.7K]

Solution:

The idea of an atom proposed by the Greek philosophers because:

According to Greek Philosopher, matter is composed of small and indivisible particles called atoms. He introduced atoms as too small to be seen, unchangeable, completely solid without internal structure. He proposed that atoms are of variety of shapes and sizes which is responsible for different types of matter.

But according to Dalton’s atomic theory, chemical elements have atoms, which are identical in weight. The different elements have different atoms of different weight. Atoms can combine in whole-number ratios to form compounds. These observations are already introduced by Greek philosopher, but the idea of atomic weight is introduced by Dalton. He introduced the list of 21 elements with their atomic weights and, he was the first to propose the element’s symbol.

4 0
3 years ago
A __ is a continuous range of a single feature such as wavelength
Gwar [14]
Hey there! 

The correct answer to your question is: Spectrum
 
A spectrum, by definition, is a range of colors which are produced by separating certain colors of light. 

Thank you! 
6 0
3 years ago
A can was filled with crushed ice, sealed, and massed. The ice was melted by slowly warming the can and its contents. No water v
Lera25 [3.4K]

Answer:

A) The mass would be the same.

Explanation:

Since there is no loss of any particle to vapor during the phase change process from solid to liquid, the mass of the before and after the process will remain the same.

  • In this way, the law of conservation of mass is obeyed.
  • Mass is the amount of matter contained in a substance.
  • Since there is no room for escape or matter loss, the mass will remain the same.
8 0
3 years ago
Read 2 more answers
If two substances travel up the chromatography paper this implies that
Colt1911 [192]

Answer:

They are seperating

Explanation:

6 0
3 years ago
Other questions:
  • All atoms are neutral. explain the basis of this fact
    12·1 answer
  • what is a diagram showing the forces acting on a coasting bike rider traveling at 25 km/h on a flat roadway
    6·2 answers
  • In an exothermic reaction, the enthalpy change is negative. Which of the following is also true for an exothermic reaction?
    5·1 answer
  • Which of the following will occur if a prokaryotic cell is placed in a solution that has a higher concentration of solutes (that
    6·1 answer
  • Over time, pollution generally leads to which of the following?
    10·1 answer
  • Short structures that cover the outside of some protists and help them move are called what?
    5·1 answer
  • PLEASE CAN SOMEONE PLEASE HELP ME I CAN'T DO IT :(
    15·1 answer
  • 1. How many moles of potassium are present in 4.23 x 1025 potassium atoms?
    14·1 answer
  • what volume will it occupied 40 degrees celsius a gas sample was collected when a temperature is 27 degrees celsius and the volu
    5·1 answer
  • Determine the empirical formula of an oxide of iron, which has 69.9% iron and 30.1% dioxygen by mass.​
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!