A solution of  ............ cannot distinguish between litmus and a bromothymol blue indicator, while ..............  can because it has different colours in each of them.

In the titration experiment of sodium carbonate as an analyte with hydrochloric acid as a titrant using bromothymol blue indicator, the equivalent point has been exceeded, so the color changes would be ................................. .

Phenolphthalein indicator has different colours in  ............ and .......... .So, it can be used to differentiate between them.

In the titration of a weak acid and strong base, methyl orange cannot be used because .

 is used to transfer a specific volume of a solution from a container to another one.

It is possible to differentiate between methyl orange and litmus indicators by passing  gas through them.

Neutralization titration between a ........ ,like HCl,and a ......... ,like NaOH,must be done in the presence of a suitable indicator whose colour in the acidic medium is different from its colour in the basic medium.

A phenolphthalein indicator is not used to detect acid because .

It is preferable to use ........  as an indicator in the titration of a strong acid with a strong base, such as the titration of sodium hydroxide with hydrochloric acid.

A titration experiment of magnesium hydroxide with hydrochloric acid is conducted. If it is found that they both have the same concentration, then the volume of the acid used is  the volume of the base in the experiment.

....................... of magnesium hydroxide is required to neutralize 125 mL of hydrochloric acid solution (0.136 M). [ M g = 2 4 g / m o l , O = 1 6 g / m o l , H = 1 g / m o l , C l = 3 5 . 5 g / m o l ]

On mixing 100 mL of phosphoric acid and 100 mL of magnesium hydroxide solutions, each of 0.6 M concentration, the produced solution will be ,which can be confirmed by the  colour of a litmus paper.

In the titration of 10 mL of 0.05 M of Na₂CO₃ against 0.1 M of HCl , 10 mL of HCl was required to reach the end point. So, the proposed reaction that occured to reach the end point is .

If 9.3 mL of a 0.1 M HCl solution was consumed to neutralize 10.5 mL of NaOH solution, then the concentration of NaOH equals  M.

A quality control chemist in the laboratory of a cosmetics company added 1 L of HCl (0.5 M) by mistake to a reaction container, and the manufacture of soap requires the pH of the reaction solution to be neutral. Thus, the chemist should add  of NaOH (0.1 M) to neutralise the added acid.

A student dissolves 0.12 g of commercial NaOH in 25 mL distilled water, which consumes

 12.5 mL of 0.2 M HCl to be neutralized. Then, the percentage purity of commercial NaOH is .

[Na=23g/mol,O=16g/mol,H=1g/mol]

Which of the following is correct about the solution obtained by mixing equal volumes of KOH and H₃PO₄ solutions, each with a concentration of 2 M?

How many moles of sodium hydroxide are present in 50 mL of a 0.1 M aqueous solution of it?

the standard solution used for titration acidified  potassium permanganate and the type of reaction are ..............................

when dissolving 8 g caustic soda in water to make 400 ml solution the solution concentration is  ....................................................( Na = 23 , O = 16 , H = 1)