A crystalline hydrated salt on being rendered anhydrous loses 45.6% of its weight. The…
Chemistry · JEE Advanced · NTA Exams — Some Basic Concepts in Chemistry
A crystalline hydrated salt on being rendered anhydrous loses 45.6% of its weight.
The percentage composition of anhydrous salt is : Al = 10.5%, K = 15.1 %, S = 24.8% and oxygen = 49.6% Answer the following four questions based on these information. [Molar masses are : Al = 27, K = 39, S = 32]
What is the empirical formula of the salt ?
- \(\mathrm{K}_{2} \mathrm{AlS}_{2} \mathrm{O}_{7}\)
- \(\mathrm{K}_{2} \mathrm{Al}_{2} \mathrm{~S}_{2} \mathrm{O}_{7}\)
- \(\mathrm{KAlS}_{2} \mathrm{O}_{8}\)
- \(\mathrm{K}_{3} \mathrm{AlS}_{2} \mathrm{O}_{12}\)
Answer
(C) KAlS _ 2 O _ 8
Sign up free on Edukali to view the step-by-step worked solution and practice thousands of similar questions.
Related practice questions
- For the reaction H 3 PO 4 + Ca(OH) 2 CaHPO 4 + 2 H 2 O 1 mol 1 mol Which are true statements?
- 1 mole of oxalic acid is treated with conc. H 2 SO 4 . The resultant gaseous mixture is passed through a…
- One mole of N 2 O 4( g ) at 300 K is kept in a closed container under one atmosphere. It is heated to 600 K…
- The equivalent weight of MnSO 4 is half of its molecular weight when it converts to (1988)
- 125 mL of 63% (w/v) H 2 C 2 O 4 . 2H 2 O solution is made to react with 125 mL of a 40% (w/v) NaOH solution…
- The analytical molarity of a solution gives the total number of moles of a solute in one litre of the…
- When Cl 2 reacts with aqeous NaOH in cold condition then oxidation number of chlorine changes from 0 to:
- Based on the following information arrange four metals A, B, C and D in order of decreasing ability to act as…
More Some Basic Concepts in Chemistry questions · Browse all practice questions