Chromium metal can be plated out from an acidic solution containing `CrO_3` according to the following reaction:
`CrO_3(aq)+6H^+(aq)+6barerarrCr(s)+3H_2O`
Calculate how long will it take to place out 1.5 g of chromium using 12.5 amp current? (Atomic mass of Cr=52)

How many minutes will it take to plate out 5.2g of cr from a Cr_2(SO_4)_3 solution using a current of 9.65 A ? (Atomic mass:Cr=52.0)

Complete the following reactions : C_6H_5NH_2 + (CH_3 CO)_2 O rarr

Complete the following reactions : C_6H_5N_2Cl+H_3 PO_2+H_2O rarr

Identify the reducing agent in the following reactions 4NH_3+5O_2 rarr 4NO +6H_2O

Explain the following : Complete the following reaction: C_6H_5N_2Cl + H_3PO_2 + H_2O rarr

A layer of chromium metal 0.25 mm thick is to be plated on an auto bumper with a total area of 032 m^2 from a solution cantaining CrO_4^(2-) ? What current flow is required for this electroplating if the bumper is to be plated in 60s ? The density of chromium metal is 7.20g/ cm^3

In the reaction BrO_3^(-)(aq) + 5Br^(-) + 6H^(+) rarr 3Br_2 + 3H_2O the rate of appearance of bromine is relate to the rate of disappearance of bromide ions as

P_4O_6 reacts with water according to equation: P_4O_6+ 6H_2O rarr 4H_3PO_3 Calculate the volume of 0.1 M NaOH solution required to neutralise the acid formed by dissolving 1.1 g of P_4O_6 in H_2O .

Calculate the molarity of each of the following soluton: 30g of CO(NO_3)_2. 6H_2O in 4.3 L of solution.

Calcium carbonate reacts with aqueous HCl to give CaCl_(2) and CO_(2) according to the reaction, CaCO_(3) (s) + 2HCl(aq)rarr CaCl_(2) (aq) + CO_(2)(g) + H_(2)O(l) What mass of CaCO_(3) is required to react completely wth 25mL of 0.75 M HCl?