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
masha68 [24]
3 years ago
6

How many milliliters of a 3.0 M HCl solution are required to make 250.0 milliliters of 1.2 M HCl?

Chemistry
1 answer:
777dan777 [17]3 years ago
5 0
M or molar is a unit of concentration. Molar is equivalent to the number of moles of a solute over the volume of the solution. If the volume of that solution is already given, the number of moles of solute can be calculated. In this problem, the principle we have to put in mind is that in each of the solutions, the moles of HCl must be constant. So the volume must be the only thing changing. The equation will then be:

V1(M1) = V2(M2) 
V1(3.0M) = 0.250L(1.2M) 
answer is 0.1L or 100ml. 
You might be interested in
Which metal would have more luster, zinc (30) or scandium (21)?​
Leya [2.2K]

Answer:

i say zinc would

Explanation:

3 0
3 years ago
Read 2 more answers
Beth takes a sip of very hot soup and decides to put an ice cube in her bowl. Which best describes what happens next?
dedylja [7]
Conduction because the hot soup heats up the bowl causing the heat to be transferred from the soup to the bowl to your hand when you touch it.
4 0
3 years ago
Use the periodic table, to determine which element the following spin diagram represents
noname [10]
The answer is A chlorine
8 0
3 years ago
Assuming the volume is constant, if a gas has an
anyanavicka [17]

Answer:

672kP

Explanation:

Equate the initial pressure with respect the first temperature. The unknown pressure to the second temperature and you cross multiply

4 0
3 years ago
Read 2 more answers
A high school girl was getting ready for a big date but discovered with horror that her silver necklace was tarnished. having ju
OLga [1]

Answer:

a. What makes this an oxidation-reduction reaction? (1 point)

Loss of electron by the aluminum and the gain of electron by the silver

b. Write the half-reactions showing the oxidation and reduction reactions. Identify which is the oxidation reaction and which is the reduction reaction. (3 points)

oxidation half reaction: Al → Al3+ + 3e-

Reduction half reaction: Ag+ + e- → Ag

c. What is oxidized in the reaction? What is reduced? (2 points)

Aluminum is oxidized and silver is reduced

d. In this simple electrochemical cell, what functions as the anode? What is the cathode? (3 points)

In a simple electrochemical cell the electrode where oxidation takes place is the anode. And the electrode where reduction reaction happens is the cathode.

e. Is this a galvanic cell or electrolytic cell? Explain your answer. (2 points)

An electrolytic cell because the reaction converts electrical energy into chemical energy

Not sure about e and f!

7 0
2 years ago
Other questions:
  • What would you use to water is below zero degrees celsius,it is?
    13·2 answers
  • What particles are used for artificial transmutations?
    14·2 answers
  • Calculate the pressures of NO, Cl2, and NOCl in an equilibrium mixture produced by the reaction of a starting mixture with 8.2 a
    6·1 answer
  • Which reactant should be used to convert propene to 1,2-dichloropropane?
    7·2 answers
  • Calcium and water form calcium hydroxide and hydrogen gas also called what type of reaction
    13·1 answer
  • I need to know how to solve the equations.​
    6·1 answer
  • .<br> As you move from left to right, the atomic number of each element increases<br> by
    11·1 answer
  • Michael Faraday made his discovery of electromagnetic induction in 1831. He hypothesized that a changing magnetic field is neces
    6·1 answer
  • Please help and try to explain if you can!
    5·1 answer
  • x g of metal (equivalent wt=12) was completely dissolved in 100 cc of N/2 HCl. The volume was then made upto 500 cc.25 cc of thi
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!