What volume of 0.250 M `HNO_3` reacts with 42.4 mL of 0.150 M `Na_2CO_3` in the following reaction ?
`2HNO_(3(aq)) + Na_2 CO_(3(aq)) ro 2NaNO_(3(aq)) + H_2O_((aq)) + CO_(2(aq))`

A flask contains 53.1 mL of 0.0150 M Ca(OH)_2 solution. How many mL of 0.350 M Na_2CO_3 are required to react completely with Ca(OH)_2 in the following reaction . Na_2CO_(3(aq)) + Ca(OH)_(2(aq)) to CaCO_(3(aq)) + 2NaOH_((aq))

Complete the following chemical equations : NH_(4)Cl_((aq))+NaNO_(2(aq))-

Complete the following equations: PbS(s)+H_2O_2(aq)-

If 20.0 g of CaCO_3 is treated with 200 g of HCI, how many grams of CO_2 can be obtained according to the following reaction : CaCO_3(s) + 2HCl(aq) to CaCl_2(aq) + H_2O (l) + CO_2(g)

Predict in which of the following reactions, entropy increases/decreases 2NaHCO_(3) rarr Na_(2)CO_(3)(s) + CO_(2)(g) + H_(2)O(g)

In the reaction : 2Al (s) + 6HCl(aq) to 2Al^(3+) (aq) + 6Cl^(-) (aq) + 3H_2O(g)

Calculate Delta_rG^@ for the following reactions: Fe^(+2) (aq)+Ag^(+) (aq) to Fe^(+3) (aq)+Ag (s)

Identify the oxidant and reductant in the following reactions: 10H^(+)(aq)+4Zn(s)+NO_3^(-) (aq)to4Zn^(2+) (aq)+NH_4^(+) +3H_2O(l)