At the equivalence point:mole of H+ = mole of OH-(Molarity ofNaOH)*(Volume ofNaOH used)=(Molarity ofunknown)*(Volume ofunknown)
PH = 7 at equivalent point
① Add 5 drops ofthe indicator solution(BTB) totheunknownsolution.
② Rinse the buret at least 3 times with a few mL ofthe 0.1M NaOH standard solution .
③ Fill the buret with the 0.1M NaOHsolution and be sure to elimi
초 록
이번 실험에서는 Cu-IDA complex를 서로 다른 Cu(NO3)2?3H2O(aq, 0.02M): NH(CH2COOH)2(aq, 0.02M) 비율로 혼합하여 spectrophotometry로 흡광도를 측정하고, complex의 formula와 stability constant를 추정해보았다. 서로 다른 volume fraction(IDA: 2,5,7,10,12,13,15,18,20,23mL, total 25mL)의 mixture를 만들고, HNO3(aq, 15%)과 NaOH(aq, 0.5M)으로 모든 sam
The homogeneous solution is determined by solving a characteristic equation, and using the characteristic roots together with the assumed form ofthesolution thesolution is given with two undetermined coefficients. The particular solution is found by substituting the assumed form ofthe particular solution intothe equations and solving a linear system of equations. Finally theunknown coeffici
of another condition, such as spina bifida, cerebral palsy, spinal muscular atrophy, or physical trauma).
A lesser known underlying cause of scoliosis could be attributed to a condition called Chiari malformation. Recent longitudinal studies reveal that the most common form ofthe condition, late-onset idiopathic scoliosis, is physiologically harmless and self-limiting even without treatment
the information about Approximate value of Surface tension(γ)
γcosΘ value for the given liquids are computed
Assumption and Condition of experiment
Room temperature : 20ºC
Density of Glycerol : 1261kg/m3
Contact angle of Glycerol on the glass : 24.78º
Gravity : 9.81m/s2
Surface tention(γ) of each tubes
Surface tension of Glycerol is 63mN/m(Theoretical value)
Experi