Which solution has the same number of moles of NaOH as 50.00 mL of 0.100 M solut

Question

Which solution has the same number of moles of NaOH as 50.00 mL of 0.100M solution of NaOH?

100.00 mL of 0.0500M solution of NaOH

50.00 mL of 0.125M solution of NaOH

30.00 mL of 0.145M solution of NaOH

25.00 mL of 0.175M solution of NaOH

QUESTION 2

Which of the following has the highest level of accuracy?

buret

beaker

test tube

erlenmeyer flask

QUESTION 3

The 'end point' or equivalence point in an acid/base titration is usually detected with the use of a color indicator. Which indicator will you be using?

methyl red

methyl orange

bromythol bue

phenolphthalein

QUESTION 4

When we determine the quantity and or concentration of an unknown reagent using a standard (known) concentration of another reagent that chemically reacts with the unknown, it is called:

standardization

neutralization

carbonation

titration

QUESTION 5

What is the primary standard used in this experiment?

hydrochloric acid

oxalic acid

phenolphthalein

sodium hydroxide

Which solution has the same number of moles of NaOH as 50.00 mL of 0.100M solution of NaOH?

Explanation / Answer

Solution 1. Of the following the highest level of accuracy can be obtained by,

buret

Solution 3. The 'end point' or equivalence point in an acid/base titration is usually detected with the use of a color indicator. the best indicator for the purpose would be,

Phenolphthalein

Solution 4. In determining the quantity and or concentration of an unknown reagent using a standard (known) concentration of another reagent that chemically reacts with the unknown, it is called,

Titration

Solution 5. The primary standard used in this experiment is,

Oxalic acid

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