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
KengaRu [80]
3 years ago
15

How much water must be added to 424 mL of 0.189 M HCl to produce a 0.140 M solution?

Chemistry
1 answer:
Mama L [17]3 years ago
7 0

Answer:

Volume of water added = 148.4 mL

Explanation:

Given data:

Initial volume = 424 mL

Initial molarity = 0.189 M

Final molarity = 0.140 M

Volume of water added = ?

Solution:

Formula:

M₁V₁  =   M₂V₂

0.189 M×424 mL = 0.140 M×V₂

V₂ = 0.189 M×424 mL /0.140 M

V₂ = 80.136 M.mL / 0.140 M

V₂ = 572.4 mL

Final volume of solution is  572.4 mL.

Volume of water added = Final volume - initial volume

Volume of water added = 572.4 mL - 424 mL

Volume of water added = 148.4 mL

You might be interested in
3. How many grams of water will be produced from 15.0 grams of Methane? *<br> CH4 +2 02 → CO2 + 2H2O
jok3333 [9.3K]
CH4 + 2O2 = CO2 + 2H2O

According to molar weights :

16 gm CH4 + 64 gm O2 = 44 gm CO2 + 36 gm H2O

Since 16 gm CH4 produce 36 gm H2O

Hence 2.5 gmCH4 produce 36×2.5/16 gm H2O

= 5.265 gm of H2O
2.1K viewsView 2 Upvoters

2



1

Related Questions (More Answers Below)
8 0
2 years ago
You have 345 mL of a 2.5 M NaCl solution. If you boil the water until the volume of the solution is 250 mLwhat will the molarity
HACTEHA [7]

The molarity of the solution will be 3.45 M

<h3>Further explanation </h3>

Dilution is the process of adding a solvent to get a more dilute solution.

The moles(n) before and after dilution are the same.

Can be formulated :

M₁V₁=M₂V₂  

M₁ = Molarity of the solution before dilution  

V₁ = volume of the solution before dilution  

M₂ = Molarity of the solution after dilution  

V₂ = Molarity volume of the solution after dilution

The initial solution

345 mL of a 2.5 M NaCl solution.

M₁=2.5 M

V₁=345 ml

The solution after boiled :

V₂=250 ml

\tt M_2=\dfrac{M_1.V_1}{V_2}\\\\M_2=\dfrac{2.5\times 345}{250}\\\\M_2=3.45~M

5 0
3 years ago
Which hold more heat for longer period of time ? <br><br> A. Air <br> B. Water
Mandarinka [93]

Answer:

water

Explanation:

The heat capacity of a material, along with its total mass and its temperature, tell us how much thermal energy is stored in a material. ... <u>The result is that the temperature of the water cube is much more stable than the air — the water changes much more slowly; it holds onto its temperature longer.</u>

8 0
2 years ago
Read 2 more answers
Identify and describe atom, element, compound and molecule of important in food science​
Y_Kistochka [10]

Answer:

an atom is the smallest particle of matter

a compound is a substance that has two or more atoms and element is the opposite of compound.

molecule is........,...............hope this helps

6 0
3 years ago
A neutral atom of helium has 2 protons and _____ electrons. (Enter a whole number.)
Mariulka [41]

Answer:

2 electrons

Explanation:

Since the atomic structure is at it's neutral state

6 0
3 years ago
Other questions:
  • O2 +<br> C3H60 →<br> H2O +<br> CO2<br> Balance please
    8·1 answer
  • In electric motors the electromagnet and permanent magnets
    7·1 answer
  • A colloid can be detected by using the _________ effect. mohs tyndall faraday brownian
    6·2 answers
  • How could you separate a mixture of sulfur, gold and ethanol? <br>​
    5·2 answers
  • DOUBLE POINTS!! Please help ASAP!! 90 minutes left !! If the [H+] in a solution is 1×10^- 1 mol/L, what is the [OH-] ? PLEASE sh
    15·1 answer
  • How many moles of H₂O can be produced when 5.5 moles of CO₂ is produced? C₂H₄ + 3 O₂ --&gt; 2 CO₂ + 2 H₂O
    6·1 answer
  • Help me get this right no links
    15·1 answer
  • What is the final temperature of a mass of 100 g of water at 80°C that is added to 200 g of water at 50°C?
    10·1 answer
  • A balloon contains 3.20 L of helium. The pressure is reduced to 59.0 kPa, and the
    13·1 answer
  • Given the balanced chemical equation for the decomposition for INO, and the rate of disappearance of INO, write the expressions
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!