All categories

4 years ago

In which solution will thymol blue indicator appear blue?

Chemistry

2 answers:

ruslelena [56]4 years ago

8 0

In 0.1 M KOH, thymol blue indicator would appear blue.

Flura [38]4 years ago

6 0

Answer: (2) 0.1 M KOH

Explanation:

Thymol blue is an universal indicator. Thymol blue has a blue color when in basic conditions (pH > 7), a green color in neutral conditions (pH =7), and a yellow color in acidic conditions (pH < 7).

pH or pOH is the measure of acidity or alkalinity of a solution. pH is calculated by taking negative logarithm of hydrogen ion concentration.

0.1 M $CH_3COOH$ , 0.1 M $HCl$ and 0.1 M $H_2SO4$ are all acidic in nature.

Thus thymol blue will appear blue in basic 0.1 M KOH.

You might be interested in

For the same mixture, under the same conditions described in problem 7, calculate keq for 2nh3 (g) n2 (g) + 3h2(g). how is the k

nekit [7.7K]

Answer: The relation between the forward and reverse reaction is $K_f=\frac{1}{K_r}$

Explanation:

For the given chemical equation:

$2NH_3(g)\rightleftharpoons N_2 (g)+3H_2(g)$

The expression of equilibrium constant for above equation follows:

$K_f=\frac{[N_2][H_2]^3}{[NH_3]^2}$ .......(1)

The reverse equation follows:

$N_2 (g)+3H_2(g)\rightleftharpoons 2NH_3(g)$

The expression of equilibrium constant for above equation follows:

$K_r=\frac{[NH_3]^2}{[N_2][H_2]^3}$ .......(2)

Relation expression 1 and expression 2, we get:

$K_f=\frac{1}{K_r}$

Hence, the relation between the forward and reverse reaction is $K_f=\frac{1}{K_r}$

7 0

3 years ago

When 83.3 grams of phosphorus pentachloride react with an excess of water, as shown in the unbalanced chemical equation below, h

Nataly [62]

2.0 moles. (83.3g / 208 [grams/moles] *5 [from balancing] = around 2

6 0

4 years ago

Read 2 more answers

For the vaporization reaction Br2(l) → Br2(

oksian1 [2.3K]

The temperature at which the process be spontaneous is calculated as follows

delta G = delta H -T delta S

let delta G be =0

therefore delta H- T delta s =0

therefore T= delta H/ delta S
convert 31 Kj to J = 31 x1000= 31000 j/mol

T=31000j/mol /93 j/mol.k =333.33K

3 0

3 years ago

By studying fossils, scientists have learned that A. Both animals and plants have changed over time. B. Plants have changed over

Nastasia [14]

Answer:A. Both animals and plants have changed over time.

Explanation:

Because plants and animals go through adaptations.

4 0

4 years ago

Read 2 more answers

The percent abundance of each isotope tells you how many of each kind of isotope exist in every 100 particles. What does relativ

fiasKO [112]

Answer:

The answer is Relative plenitude alludes to the amount of a specific isotope is available in a given measure of test.

Explanation:

The 'relative plenitude' of an isotope implies the level of that specific isotope that happens in nature. Most components are comprised of a blend of isotopes. The total of the rates of the particular isotopes must indicate 100%. The relative nuclear mass is the weighted normal of the isotopic masses. The percent plenitude of every sort of sweets reveals to you what number of every sort of Aufbau there are in each 100 CANDIES. Percent wealth is additionally relative plenitude. This is only a method for giving us a photo on which kind exists all the more every now and again.

3 0

3 years ago