The more water added the lower the conductivity. The Na+ and Cl- ions allow the solution to be conductive. The lower the concentration, the less conductive the solution will get until it is not conductive at all.
1) Balanced chemical equation:
2C2H2 + 5O2 ----> 4CO2 + 2H2O
2) State the molar ratios
2 mole C2H2 : 5 mole O2 : 4 mol CO2 : 2 mole H2O
3) Use the periodic table to get the atomic masses of each element and from that the molar masses of O2 and C2H2
Atomic masses:
O: 16 g / mol
C: 12 g / mol
H: 1 g / mol
Molar masses of O2 and C2H2:
O2: 2 * 16 g/mol = 32 g/mol
C2H2: 2*12 g/mol + 2*1g/mol = 26 g / mol
3) Convert 859.0 grams of C2H2 into moles:
859.9 g / 26.0 g /mol = 33.07 mol C2H2
4) State the molar proportion with C2H2 and O2
x mol O2 / 33.07 mol C2H2 = 5 mol O2 / 2 mol C2H2
=> x = 33.07 mol C2H2 * 5 mol O2 / 2 mol C2H2 = 82.68 mol O2
5) Convert 82.68 mol O2 to grams
82.68 mol * 16 g/mol = 1322.9 g O2.
Answer: 1322.9 grams of O2
Solution : Water and Methanol are easily miscible in any amount. so they are not preferred for the liquid-liquid extraction process.
Liquid-Liquid Extraction is also called as solvent extraction. It is the method of seperation of compound based on their relative solubilities in two different immiscible liquids. Generally we use water (polar) and an organic solvent (non-polar).
It is important that the two solvents should not be mix because it is easy to seperate them.
Water and Methanol are easily miscible in any amount. we can not seperate them easily. So that is why we can not use water and methanol as a solvent in liquid-liquid extraction process.
