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- ballance these b) (NH4) 2O (aq) + Pb(C2H3 O2)2 (aq) --> PbO (s) + NH4 C2H3 O2 (aq)c) H2SO4 + B(OH)3 ----> B2(SO4)3 + H2OUse the rule of 13 and mass spect data attached to propose the molecular formula. 151 represents both the M+ and base pwakZn + 2 HCl ------> ZnCl2 + H2 2) When HCl(aq) is poured over the zinc metal, the liquid begins to fizz with small bubbles. What are the bubbles made of? Combustion Tests of Hydrogen –
- 3. Please complete all parts to the following table:Cocaine(C17H21O4N) is a natural substance found in the leaves of the coca plant, which has been used for centuries as a local anesthetic and stimulant. Illegal cocaine arrives in the USA either as a pure compound or as the hydrochloride salt(C7H21O4NHCl). At 25 degrees celsius, the salt is very soluble in water(2.59kg/L), but pure cocaine is much less so(1.70g/L) a. What is the maximum amount of salt in grams that can dissolve in 50.0mL of water? b. When a 25mL aqueous solution that contains 62.50 g of the salt is treated with NaOH, the salt is converted to pure cocaine. How much water in liters is needed additionally to dissolve the formed pure cocaine,(AH is all in kJ mol-1) AH 2 Na = 0 AH 2 H20 = -285.8 AH 2 NaOH = -470.1 AH H2 = 0