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
Dima020 [189]
3 years ago
15

If i add water to 100 mL of a 0.15M NaOH solution until the final volume 150mL , what will the molarity of the diluted solution

be ?
Chemistry
1 answer:
labwork [276]3 years ago
3 0
0,15 moles of NaOH-------in------------1000ml
x moles of NaOH------------in--------100ml
x = 0,015 moles of NaOH

final volume = 150ml

0,015 moles of NaOH---in-------150ml
x moles of NaOH--------------in-----1000ml
x = 0,1 moles of NaOH

answer:  0,1mol/dm³  (molarity)
You might be interested in
Rate data have been determined at a particular temperature for the overall reaction 2NO(g) + 2H2(g) → N2(g) + 2H2O(g). The value
Fynjy0 [20]

Answer:

Rate = k [NO]2 [H2]

Explanation:

Please kindly check attachment for the step by step solution of the given problem.

I have the solution as an attachment.

4 0
3 years ago
If three potatoes have a mass of 667 g, what will be the mass of 100 potatoes? A. 200 kg B. 22.2 kg C. 2223 g D. 20.0 kg
adell [148]

Answer: B- 22.2 kg

Explanation: If three potatoes have mass of 667 g that means that each potato weighs 667/3= 222.33 g (approx) so 100 potatoes must be 100*222.33= 22233 g which equals 22.2 kg because 1 g=1000 kg

8 0
3 years ago
• We obtained the above 10.00-mL solution by diluting a stock solution using a 1.00-mL aliquot and placing it into a 25.00-mL vo
garik1379 [7]

Answer:

a) The relationship at equivalence is that 1 mole of phosphoric acid will need three moles of sodium hydroxide.

b) 0.0035 mole

c)  0.166 M

Explanation:

Phosphoric acid is tripotic because it has 3 acidic hydrogen atom surrounding it.

The equation of the reaction is expressed as:

H_3PO_4 \ + \ 3NaOH -----> Na_3 PO_4 \ + \ 3H_2O

1 mole         3 mole

The relationship at equivalence is that 1 mole of phosphoric acid will need three moles of sodium hydroxide.

b)  if 10.00 mL of a phosphoric acid solution required the addition of 17.50 mL of a 0.200 M NaOH(aq) to reach the endpoint; Then the molarity of the solution is calculated as follows

H_3PO_4 \ + \ 3NaOH -----> Na_3 PO_4 \ + \ 3H_2O

10 ml            17.50 ml

(x) M              0.200 M

Molarity = \frac{0.2*17.5}{1000}

= 0.0035 mole

c) What was the molar concentration of phosphoric acid in the original stock solution?

By stoichiometry, converting moles of NaOH to H₃PO₄; we have

= 0.0035 \ mole \ of NaOH* \frac{1 mole of H_3PO_4}{3 \ mole \ of \ NaOH}

= 0.00166 mole of H₃PO₄

Using the molarity equation to determine the molar concentration of phosphoric acid in the original stock solution; we have:

Molar Concentration =  \frac{mole \ \ of \ soulte }{ Volume \ of \ solution }

Molar Concentration = \frac{0.00166 \ mole \ of \  H_3PO_4 }{10}*1000

Molar Concentration = 0.166 M

∴  the molar concentration of phosphoric acid in the original stock solution = 0.166 M

6 0
3 years ago
What is the atomic mass number for boron?​
Lynna [10]

Answer:

the atomic mass number for boron is 5

Explanation:

hope it helps , pls mark me as brainliest

4 0
3 years ago
A scientist did an investigation on the growth of koi fish. He selected forty newly hatched koi from the same clutch of eggs. He
Luda [366]
D have a good day my dude
8 0
3 years ago
Other questions:
  • Would a precipitate form if a solution contained 8.0 x 10-4 m silver nitrate and 1.8 x 10-4 m potassium chromate? you will have
    14·1 answer
  • By changing the number of _______ you get the same element that has a different atomic mass. An example of this would be carbon-
    7·1 answer
  • If an ice cube melts at 0ºC but water also freezes at 0ºC, what is the difference between melting and freezing in terms of…….
    7·1 answer
  • How many grams of lithium hypochlorite are there in 1.35 mol?
    7·1 answer
  • Which of the following has the lowest boiling point? <br> O HF<br> NaCl<br> O MgCl2<br> O CH4
    7·2 answers
  • You have two 466.0 mL aqueous solutions. Solution A is a solution of silver nitrate, and solution B is a solution of potassium c
    9·1 answer
  • For the reaction, calculate how many moles of the product form when 2.73 mol of h2 completely reacts. assume that there is more
    10·2 answers
  • What is an isototope?
    8·2 answers
  • Calculate the value of the equilibrium constant, c, for the reaction
    13·1 answer
  • The basic principles of atomic theory were first conceived by:
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!