A drop `(0.05 mL)` of `12 M HCl` is spread over a thin sheet of aluminium foil ( thickness `0.10mm` and density of `Al=2.70g//mL`). Assuming whole of `HCl` is used to dissolve `Al`, what will be maximum area of hole produced in foil ?

A drop (0.05mL) of 12M HCI is spread over a thin sheet of aluminium foil (thickness 1xx10^(-2) cm and density 2.7g mL^(-1) ). Assuming whole of the HCI is used to dissolve Al. The maximum area of-hole produced in the foil is

To dissolve 0.9 g metal, 100 mL of 1 N HCl is used. What is the equivalent weight of metal?

To dissolve 0.9 g metal, 100 mL of 1 N HCl is used. What is the equivalent weight of metal?

What will be the pH of a solution obtained by mixing 800 mL of 0.05 M NaOH and 200 mL of 0.1 M HCl assuming complete dissociation of the acid and the base ?

29.2 % (W//W) HCl stock solution has a density of 1.25 "g mL"^(-1) . The molecular mass of HCl is 36.5 g mol^(1) . What is the volume (mL) of stock required to prepare 200 mL of solution of 0.4 M HCl ?

100 ml of 5 M NaOH solution (density 1.2 g/ml) added to 200 mL of another NaOH solution which has a density of 1.5 g/ml and contains 20 mass percent of NaOH. What will be the volume of the gas (at STP) in litres liberated when aluminium reacts with this (final) solution? [Give answer excluding decimal places] The reaction is Al+NaOH+H_(2)OrarrNaAlO_(2)+H_(2) (At. wt. Na=23, 0=16, H=1)

25.0 mL of 1.0M HCl is combined with 35.0 mL of 0.5 M NaOH. The initial temperatures of the solutions is 25^@C , the density of the solution is 1.0 g/mL, the specific heat capacity of the solution is 4.184 J//g .^(@)C , the reaction is completed in insulated beaker, and the standard enthalpy of reaction for H^(+)(aq) + OH^(-)(aq) rarr H_(2)O (l) is -56 kJ//mol . What is the final temperature of the solution?