In: Chemistry

how
manu mL of 5.00 M NaOH solution are needed to prepare 750mL of a
0.150 M NaOH solution? and how many mL of water misy be added to
prepare the above solution?

We have to prepare diluted solution of NaOH ( 0.150 M ) from stock solution of NaOH ( 5.00 M ) . We can calculate volume of stock solution required to prepare dilute solution of NaOH by using dilution formula.

We have dilution formula, C _{stock}
V _{stock} = C _{dilute}
V _{dilute}

V _{stock} = C _{dilute}
V _{dilute} / C _{stock}

V _{stock} = 0.150 M
750 ml / 5.00 M

V _{stock} = 22.5 ml

To get 0.150 M NaOH solution , dilute 22.5 ml of 5.00 M NaOH to 750 ml by using distilled water.

Volume of water required to prepare 0.150 M NaOH solution = 750 ml - 22.5 = 727.5 ml

**ANSWER : 727.5 ml water is required to add to 22.5 ml of
5.00 M NaOH solution to get 750 ml of 0.150 M NaOH
solution.**

A 25.0 mL sample of 0.150 M hydrofluoric acid is titrated with a
0.150 M NaOH solution. What is the pH at the equivalence point? The
Ka of hydrofluoric acid is 6.8 × 10-4.

A 25.0-mL sample of 0.150 M hydrocyanic acid, HCN, is titrated
with a 0.150 M NaOH solution. What is the pH after 16.3 mL of base
is added? The K a of hydrocyanic acid is 4.9 × 10 -10.
A 25.0 mL sample of 0.150 M hydrocyanic acid, HCN, is titrated
with a 0.150 M NaOH solution. What is the pH at the equivalence
point? The K a of hydrocyanic acid is 4.9 × 10 -10.
What is the pH...

How would you prepare 1.56L of a 0.120 M NaOH solution from a
1.20 M
NaOH solution?
A flask contains 55.0 mL of a hydrochloric acid solution. The
molarity of the solution is not known. It
takes 23.5 mL of a 0.103 M sodium hydroxide solution to complete
the reaction with hydrochloric acid. What is the molarity of the
hydrochloric acid solution?

You prepare a diluted NaOH solution by adding 15 mL of 3 M NaOH
to 435 mL of distilled water and stir for several minutes. In a
clean dry beaker you obtain about 75 mL of standardized HCl and
record the molarity. You take two burets, rinse one with the
standardized HCl and one with the diluted NaOH solution. Fill one
buret with the HCl and the other with NaOH.
Prior to the titration the standard HCl soltion (~15.00 mL)...

Describe how to prepare 50 mL of solution buffered at pH 5.00.
The buffer must be designed so the pH changes no more than 0.10
units with the addition of 0.001 moles of acid or base. Choose from
the following to design the buffer. Be sure to choose the buffer
pair best suited to the assigned conditions.
1.acetic acid/sodium acetate
2.formic acid/sodium formate
3. benzoic acid/sodium benzoate
please show your work-thank you!

A solution of HF is titrated with 0.150 M NaOH. The pH at the
equivalence point will be
greater than 7.0
less than 7.0
equal to 7.0
cannot be estimated from the information given.

Weigh by difference the amount needed to prepare 250 mL of a
0.01 M KIO3 solution and quantitatively transfer to a volumetric
flask with the aid of a glass funnel. Record its mass to the
nearest ±0.1 mg.

Consider the titration of of 5.00 mL of 0.450 M HBr using 0.120
M NaOH as the titrant.
a)Calculate the volume of 0.120 M NaOH that must be added in
order to reach the equivalence point.
b)Determine the pH of this titration solution at the equivalence
point.
c)Calculate the pH of this solution after 20.00 mL of 0.120 M
NaOH has been added.

(4 pts) Determine the volume of 0.75 M stock solution needed to
prepare 50.0 mL of a 0.15 M solution. Show the complete calculation
with units. *Note ‐ If you struggle with this
calculation, refer to experiment 5.
(8 pts) Write out a complete, detailed experimental procedure
that you (or anyone else) could follow to carry out the solution
preparation you have described above. Your procedure must follow
these restrictions and guidelines:
You must prepare the 50.0 mL in...

How many 2 g tablets are needed to prepare 100 mL of a 10%
solution?

ADVERTISEMENT

ADVERTISEMENT

Latest Questions

- -Endocrine system - Nerve system - Cardiovascular system - Digestive system What are their primary organs...
- A student researcher compares the heights of American students and non-American students from the student body...
- Question 18 Give one argument in favor of hedging transaction exposure and one argument against hedging...
- Reducing scrap of 4-foot planks of hardwood is an important factor in reducing cost at a...
- Question 19 You want to use the dividend discount model with a constant growth rate to...
- You obtain the following results from an election poll. a) Liberals obtain 38% with a...
- Calculate the concentration of all species present (H2SO4, HSO4^-, H^+, SO4^-2) in a 0.285 M H2SO4...

ADVERTISEMENT