Chemistry Homework Solutions

Balance and limiting-show work

10) Balance the following equation: UF5 + H2O = UO2F2 + UF4 + HF a) What is the maximum amount of UF4 that can be made from the 10.5 gms of UF5 and 5.0 gms of H2O b) How much of which reactant is left after the reaction stops?

Limiting problem

7) Which would be used up first? How many grams of Cl2 will be produced? TiO2 + HCl = TiCl2 + Cl2 + H2O if 0.86 mole of TiO2 and 1.5 lbs of HCl react

Balance redox reactions

a) Acid Solution: KI+HNO3=KNO3+NO+I2+H2O Cr2O7<-2> + I<-> = Cr<+3> + IO3<-> b) MnO4<-> + Br<-> = MnO2 + BrO3<-> Bi(OH)3 + Sno2<-2> = Bi + SnO3<-2>

Preparation of solutions

Hi-1st of all, would you please send back an email address so I may contact someone on the 3rd shift about something that was done on 3rd? Secondly, is there a way to request work to be done by a certain person if they are available? A couple of you last night were just wonderful!!!Olivia Problem: Describe how you would prepar ...continues

Molecular Exclusion

why do different columns have different void volumes?

Balance basic using half reaction

Na(s)+ H2O = Na<+> + H2

Is there any partial work done on this one?

Will certainly accept anything anybody has done on this one-I know it was a bad one! Thanks. Balance by half reaction method in acidic solution: Cr(NCS)6<4->(aq) + Ce<4+> (aq) = Cr<3+>(aq) + Ce<3+> (aq) + NO3<->(aq) + CO2 (g) + SO4<2->(aq)

What Volume will react completely...

What Volume of 0.100 M NaOH will react completely with 25.0 mL of 0.200M HCl?

Balance ionic and Net Ionic

1)AgNO3 + NaBr= 2) BaI2 + ZnSO4= 3) Na2CO3 + MgCl(Chlorine)2= 4) KOH + H3PO4 = 5) HCl + Fe(OH)3=

Assign oxidation states for all atoms in each of following compounds

a) UO2<+2> b) As2O3 c) NaBiO3 d) As4 e)P4O6 f) Mg2P2O7 g) Na2S2O3 h) Hg2Cl2 i) Ca(NO3)2

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