Given the following reaction K2S (aq) + Co(No3)2(aq)=2KNO3(aq)+CoS(s) What volume of .225M K2S solution is req
K2S + Co(NO3)2 --> CoS + 2KNO3 1 mol of K2S reacts with 1 mol of Co(NO3)2 (1:1 molar ratio) mL x 0.225 M = 175 mL x 0.115 M mL = 175 x 0.115 / 0.225 = 89.4 mL millimoles of Co(NO3)2 = 175 mL x 0.115 M = 20.125 You need 20.125 millimoles of K2S mL x 0.225 M = 20.125 millimoles mL = 20.125 / 0.225 = 89.4 mL
Why is zinc not considered to be a transition metal?
Zinc is not consider as a transition metal because its compounds or ions (Zn2+) contain a full filled d-orbital or sub shell and are unstable.Moreover it have only one ion which is the (Zn2+). Hence zinc do not form colored aqueous ions because it do not have at least one vacant d-orbital in which it can receive an electron in a reaction.Considering Zinc not as a transition metal require you to understand and see into consideration the properties of transition metals . You can start with their ability to have variable oxidation state and their catalytic nature in reactions.Here are some of the characteristic of a transition metalThey form compound with variable oxidation statesThey are good catalyst in most reactionsThey exhibit para-magnetismThey form complexesThey form colored ions with compound
What is the reaction between copper nitrate and sodium hydroxide?
First, please note that this reaction has very little practical value…I will get back to this. The reaction that occurs is shown below:Cu(NO3)2 (aq) + 2NaOH (aq) = Cu(OH)2 (s) + 2NaNO3 (aq)(aq = means that it is in solution, aquesous, s - means that it is a solid). So, when you mix a solution of copper nitrate (light blue solution) and sodium hydroxide (clear solution) you will see a light blue precipitate form (Cu(OH)2) and NaNO3 in solution. It is a reaction that is useful for demostrationg a reaction, not much else.
How do copper and nitric acid react?
4 HNO3(l) + Cu(s) ==> Cu(NO3)2(s and aq) + 2 NO2(g) + 2 H2O(l) The coppernitrate salt that forms is a deep blue color. The nitrogen dioxide is a maroon vapor.the reaction if the acid is dilute