Physics homework help

it is all about Azide. Please solve these 5 questions about azide with full explanations. Attachment 1Attachment 23 . You wish to prepare a buffer solution containing Nan’s and HIM . Chyhave to prepare the solutions firsta. 187 8 of sodium azide is dissolved in water to make a1 01 . What is the concentration and PH of the solution ?final volume ofb . What is the molarity a solution made byto a final volume of 250. me ?60 MAN ( aq ) to waterWhat volume of the HN ( ag ) made in part b is needed to add to 100 0 m I of tf theNan ( ag ) solution of made in part a to make a buffer at PH = 5.00 ?4 . What are the three main intermolecular forces ? Which one describes theintermolecular forces in water ? Draw a picture of three water molecules showing thisintermolecular force . Draw a picture of sodium azide dissolved in water and explain thetractions involved In terms of enthalpy and entropy , why does sodium azide dissolvespontaneously in water ?5 . The following is from an abstract fromKinetics and mechanism of the addition of azide ion to a carbonyl ligand of Rus ( CO) 12 ) : clusteractivationLeon A . P . Kane – Maguire , Monika Mantheyex and Brett RobinsonJ . Chem . Soc . , Dalton Trans . , 1995 905 – 908Spectroscopic studies of the reaction of azide ion with the cluster Rus ( CO ) 12) in acetone solvent confirmedthe occurrence of process ( 1 ) under a CO atmosphere . Kinetic measurements of this rapid Rus ( CO ) 12 ) + N3- Ru NCO ) ( CO ) + Na( 1 ) reaction revealed the rate law , Rate = KRUN3 1 , and the activation parametersAH = 61 6 # 3 . 4 KJ mol – and AST = 35 + 11 . 8 J K – mott These results are consistent with the addition ofNo to a CO ligand of Rus ( CO ) 12 ) to form an intermediate under either steady – state or pre- equilibriumconditions etca . What is the ratat is the rate constant ( with units ) if the rate of reaction is 1 23 Ms’ and the concentration of theRu cluster is 050 M and the azide concentration is 025 M ?b . Ignoring the uncertainty values , what is the free energy value at 298K ? Is the reaction spontaneous ?Mn ( bipy ) N 3 ) 2 is a coordination complex with azide ion . What is the charge on themanganese ? What is the overall charge on the complex ? What is the name of thiscoordination complex ?
 
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