why we not use caffeine at 205nm for hplc calibration?

3263

how the compound separate in coulunm,explain

2453

What happens when the excess of stannous chloride is not removed

1063

what is the indicator used?

993

Describe your field experience sample type collected,sample techniques,field measurements taken and equipment used?

2653

Explain the ionic equation for hcl-naoh?

966

what is the difference between potentiometric titration and karl fischer titration?

3122

However ozone is heavier than oxygen still ozone is up there in sky why?

1022

Why titration in which hcl and h2so4 is use?

1028

. Given that 2Hg2+ (aq) + 2 e- Hg22+(aq) E0 =0.92V Hg22+ (aq) + 2 e- 2Hg(l) E0 =0.85V Calculate standard free energy change and K for the following process at 25oC Hg22+(aq) Hg2+ (aq) + Hg(l)

6592

Define an origin of electrode potential? : Electrochemistry Corrosion

993

Define the term distribution coefficient in organic chemistry.

1073

Observe the following number to four significant figures and express the result in standard exponential notation: 0.006543210?

950

How does Actinium contribute to our understanding of nuclear structure and properties, and what experiments or studies have been conducted to explore this aspect?

567

Why to use propyl paraben in HPLC gradient calibration

7327