Answer to Question #155562 in Inorganic Chemistry for gaby

Question

when 2.76 g (0.02 mol) of kco was added to 30,0 cm3 of app 2 mol dm-3 HCl the temperature rose by 5.2 degrees celcius. write a balanced equation, calculate the enthalpy change of this reaction per mole of k2co3. the specific heat capacities of solution are 4.2Jg-1k-1 and all solutions have a density of 1.0 gcm-3

Answer 1

KCO + HCl → KCl + HCO

$Q=mcdT$

Q= 2.76×4.2 ×5.2

Q=58.96j/g/k