4.0 liters of oxygen are mixed with 8.0 liters of nitrogen. Identify the solute and solvent in this mixture:

1039

hi i got i 20 from sacred heart university u.s.a.i got good tofel score and my gre is score is very poor.my university requirement is only tofel.i completed my b.pharmacy in 2009 so i got 1 year gap is their chances to reject visa?what i have to do i was very tensed.how to sought out my problem

2432

In rs method development when we are going area normalization method to dilute standard method?

1521

I have compare C2H2-air and C2H2-N2O flame AAS on determination calcium. Both use same range of std to plot calibration curve. (2-6ppm) When i measure the sample with phosphate, KCl and LaCl, C2H2-N2O flame give false positive result, around 0.5ppm. When i measure the sample with phosphste, KCl and EDTA. C2H2-N2O flame also give 0.5ppm false positive. But both above mentioned sample would not give false positive when measured by C2H2-air flame. What is the reason?

3540

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

2706

Actinium is part of the actinide series. Could you explain the significance of this series and its placement in the periodic table?

629

Why only Copper standard is used to calibrate Atomic Absorption spectrophotometer?

2728

Why be is not soluble in liquid ammonia?

1112

Explain the molar mass of chlorine?

1034

in each media we require to use SLS? how to proceed?

787

How to synthesize methylene bisthiocyanate using CH2Cl2 and NaSCN?

3003

Principle of single pan analytical balance

5143

what are the role of chemical education in sustainable development

2207

What is stepping ripple and step accuracy

1187

Why ammonia is used as buffer solution in estimation of copper by EDTA method

1866