Manipal MET2017ChemistrySome Basic Concepts of Chemistry

The mass of CaCO ₃ required to react with 25 mL of 0.75 M HCl is

Options

A0.94 g
B9.4 g
C0.094 g
D0.49 g

Correct answer

A. 0.94 g

Step-by-step solution

gathered CaCO ₃+2 HCl CaCl ₂+ CO ₂+ H ₂ O 25 ~mL of 0.75 M HCl = 25 1000 0.75=0.01875 ~mol gathered aligned & Moles of CaCO ₃ required = moles of HCl 2 & = 0.01875 2 =9.375 10⁻³ ~mol aligned aligned & Mass of CaCO ₃ required & =9.375 10⁻³ ~mol 100 ~g ~mol ⁻¹ & =0.9375 ~g =0.94 ~g aligned

Practice Some Basic Concepts of Chemistry on Quantrex Academy →

More from Some Basic Concepts of Chemistry

How many molecules of C O₂ (g) are obtained on reaction of 24 grams of methane with 4moles of oxygen? 2026 500 mL of an aqueous solution of glucose C₆ H₁₂ O₆ (Molar mass 180 gmol ⁻¹ ) contains 6.02 10²² molecules. The concentration of the solution will be: 2026 The mass of precipitate formed when 50 mL of 16.9% aqueous solution of AgNO ₃ is mixed with 50 mL of 5.8% NaCl solution is------------g [Ag = 107.8, N = 14, O = 16, Na = 23, Cl = 3 2026 100 mL of 1.0 M aqueous NaOH solution was diluted to 1.0 L by adding water. Half of this solution was discarded. A new 100 mL of 0.5 M aqueous NaOH solution was added to the remain 2026 From the given information, select the suitable law of chemical combination: Cupric Carbonate % of Cu % of C % of O Natural Sample 51.35 9.74 38.91 Synthetic Sample 51.35 9.74 38.9 2026 Match List-I with List-II and select the correct option (Based on mole concept): List-I List-II (a) 2 moles of ethene (i) 11.2 L volume at STP (b) Mass is equal to 66 g (ii) 56 g ( 2026 The mass of a mixture containing NaCl and NaBr is 4.0 g. If Na is 30 % of the total mixture, the composition of NaCl in the mixture is 2025 Two acids A and B are titrated separately. 25 mL of 0.5 M Na ₂ CO ₃ solution requires 10 mL of A and 40 mL of B for complete neutralisation. The volume (in L) of A and B required t 2025 Full Some Basic Concepts of Chemistry list All Manipal MET PYQs