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
Artemon [7]
3 years ago
11

if you take 2.0mL of a 7.0 ppm NaOH solution and dilute it to 250.0mL, calculate the final concentration in ppm.

Chemistry
1 answer:
Oduvanchick [21]3 years ago
4 0

Answer:

C₂ = 0.056 ppm

Explanation:

Given data:

Initial volume = 2.0 mL

Initial concentration = 7.0 ppm

Final volume = 250.0 mL

Final concentration = ?

Solution:

Formula:

C₁V₁ = C₂V₂

C₁ = Initial concentration

V₁ = Initial volume

C₂ = Final concentration

V₂ = Final volume

Now we will put the values in formula.

C₁V₁ = C₂V₂

7.0 ppm × 2.0 mL = C₂ × 250.0 mL

C₂ = 14.0 ppm.mL /250.0 mL

C₂ = 0.056 ppm

You might be interested in
Lastly, Snape thinks we should try one more calculation. What is the retention factor if the distance traveled by the solvent fr
Neporo4naja [7]

Answer:

0.1 is the retention factor.

Explanation:

Distance covered by solvent ,d_s= 2.0 cm

Distance covered by solute or ion,d = 0.20 cm

Retention factor(R_f) is defined as ratio of distance traveled by solute to the distance traveled by solvent.

R_f=\frac{d}{d_s}

R_f=\frac{0.20 cm}{2.0 cm}=0.1

0.1 is the retention factor.

7 0
3 years ago
What is the correct formula of nickel (ii) oxide
scoundrel [369]
The correct formula for nickel (II) oxide is NiO.
6 0
4 years ago
Read 2 more answers
Use dhe References to access inportaat valbes ifneeded for ais A sample of 2.601 grams of a compound containing carbon and hydro
jolli1 [7]

Answer:

jhouhglhi

Explanation:

7 0
4 years ago
A chemistry student weighs out of hypochlorous acid into a volumetric flask and dilutes to the mark with distilled water. He pla
riadik2000 [5.3K]

Answer:

<u><em>Volume of NaOH, aka V2 = 6.32 mL to 3 sig. fig.</em></u>

A chemistry student weighs out 0.0941 g of hypochlorous acid (HClo) into a 250. ml. volumetric flask and dilutes to the mark with distilled water. He plans to titrate the acid with 0.2000 M NaOH solution. Calculate the volume of NaOH solution the student will need to add to reach the equivalence point. Round your answer to 3 significant digits mL.

Explanation:

1 mole HClO = 74.44g

0.0941g = \frac{0.0941}{74.44} = 0.00126 moles

Concentration = no. of moles/volume in L

Hence, Concentration of HClO = 0.00126/ 0.250L

= 0.005M.

C1V1 =C2V2

0.005 × 250 mL = 0.2 × V2

<u><em>Volume of NaOH, aka V2 = 6.32 mL to 3 sig. fig.</em></u>

3 0
3 years ago
How many valence electrons does fluorine have?
ahrayia [7]
Seven valence electrons .
3 0
3 years ago
Read 2 more answers
Other questions:
  • How are fossil fuels used in the harvesting of fresh apples from an apple tree?
    15·2 answers
  • Look at the graph below. Which statement is TRUE based on the graph of an egg drop experiment? A.The egg is not accelerating. B.
    14·2 answers
  • Calculate the concentration (m) of sodium ions in a solution made by diluting 80.0 ml of a 0.174 m solution of sodium sulfide to
    15·1 answer
  • Need help !!!!! In this question im stuck
    6·1 answer
  • Consider an ionic compound, MX, composed of generic metal M and generic, gaseous halogen X. The enthalpy of formation of MXis ΔH
    5·1 answer
  • Which is and element <br> A) Salad<br> B) Sugar<br> C) Water <br> D) Potassium
    12·1 answer
  • Which of the following would form a heterogeneous mixture?
    9·1 answer
  • Swim ability is it materials ability to burn in the presence of
    14·1 answer
  • Which of the following is a gaseous substance that is liquid or solid at room
    10·1 answer
  • What is the amount of energy (in kJ) released when 1 mole of photons are emitted from an electron transition of n
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!