0.0075 mole of calcium trioxocarbonate (IV) is added to 0...
0.0075 mole of calcium trioxocarbonate (IV) is added to 0.015 mole of a solution of hydrochloric acid. The volume of gas evolved at s.t.p is?
[Molar volume of a gas at s.t.p = 22.4 dm3]
224cm3
168cm3
112cm3
100cm3
Correct answer is B
1mole of gas at STP = 22.4dm\(^3\)
0.0075 mole of CaCO3 = xdm\(^3\)
cross multiply;
where 22.4dm\(^3\) = 22400cm\(^3\)
x * 1 = 0.0075 * 22400 → 168cm\(^3\)
the gas CO2 which evolved was gotten from CaCO3 so we use the number of moles of CaCO3 only
Palm wine turns sour with time because? ...
HCL(aq) + H2O(l) H3O+(aq) + Cl-(aq) In the reaction above, Cl-(aq) is the...
The main difference between a primary cell and a secondary cell is that the primary cell ...
Consider the following equilibrium system: 2SO2(g) + O2(g) \(\rightleftharpoons\) 2SO3(g) The ad...
Which of the following represent hybridization in ethyne? ...
Which of the following is a primary constituent of crude oil? ...
One advantages of detergents over soap is that detergents? ...
2-methylprop-1-ene is a structural isomer of? ...
Which of the following sets of metals dissolves in dilute HCl? ...