How many grams of Al_2(SO_4)_3 , will be required to prepare 4 litres of 0.025M solution ?
How many 'd' electrons are present in Cr^(2+) ion?
The oxidation state of Cr in [Cr(NH_(3))_(4)Cl_(2)]Cl
How many milli-gram of iron (Fe^(2+)) are equal to 1mL of 0.1055N K_(2) Cr_(2)O_7 equivalent ?
The density of Cr atoms is 7.2 g/cm. If the unit cell has edge length 289 pm. Calculate the number of chromium atoms per unit cell (at mass of Cr = 52)
How many moles of chlorine are obtained when one mole of K_(2)Cr_(2)O_(7) reacts with excess hydrochloric acid ?
The charge required for the reduction of 0.4 mol of K_2Cr_2O_7 to Cr^(3+) ions is
