A capacitor can be made from two different sheets of aluminum foil separated by a sheet of waxed paperIf the sheets of aluminum are 0.340m by 0.350m, and the waxed paper, of slightly larger dimensions, is of thickness 0.0300mm and dielectric constant K2.5, what is the capacitance of this capacitor?
Capacitance k x ε0 x area / separation area 0.34 0.35 0.119 m2 k 2.5 separation 0.00003m ε° 8.854 10^-12 F/m C 2.5 8.854 10^-12 0.119 / 3 10-5 0.878 10^-7 F 0.0878021?F Link calculator Parallel Plate Capacitor hyperphysics.phy-astr.gsu.edu/hbaGoodbye
Sodium Carbonate + Hydrochloric Acid Sodium chloride + water + carbon dioxideRemember all CARBONATES react with all ACIDS to release the corresponding salt plus water plus carbon dioxideThe general equation is Carbonate + Acid Salt + Water + Carbon DioxideNa2CO3(s) + 2HCl(aq) 2NaCl(aq) + H2O(l) + CO2(g) The bubbling (effervescence) is the release of carbon dioxideTo test for carbon dioxidePass (bubble) the gas through limewater, which will turn 'milky'This is the classic test for carbon dioxide (CO2)For copper sulphate and sodium carbonate The reaction scheme is belowNotice it releases carbon dioxide (CO2) - the effervescenceAs previously CO2 is bubbled through limewater which turn from clear (Transparent) to 'milky' white2 CuSO4 + 2 Na2CO3 + H2O → Cu2(OH)2CO3 + 2 Na2SO4 + CO2
