Give the names of two aqueous solutions that, when mixed, form a precipitate of lead(II) bromide.
Describe how to obtain a pure sample of lead(II) bromide from the mixture of aqueous solutions in (a)(i).
Write an ionic equation for the precipitation reaction that makes lead(II) bromide. Include state symbols.
Describe how to test for sulfur dioxide gas. test reagent observations
Complete the equation for the thermal decomposition of hydrated cobalt(II) nitrate. $2\text{Co(NO}_3)_2\cdot4\text{H}_2\text{O} \rightarrow \ldots\text{CoO} + \ldots\text{NO}_2 + \text{O}_2 + \ldots\text{H}_2\text{O}$
Describe what else the student should do to make sure that all the water has been removed. No other substances are required.
Calculate the number of moles of CoSO$_4$ that remains. Calculate the mass of H$_2$O given off. Calculate the number of moles of H$_2$O given off. Determine the value of $x$.