Answer:
See explanation
Explanation:
We separate substances based on their important properties such as reaction to heat, solubility in water, magnetic properties, etc.
To separate sodium chloride and potassium trioxonitrateV, we need to heat the solution. KNO3 dissolves at a high temperature and crystallizes out as the solution is cooled.
Hence when we heat the solution, KNO3 dissolves, as we cool the solution, solid KNO3 crystals are obtained while NaCl remains in solution. We have now separated the two salts in the solution.
Note that the solubility of NaCl is almost independent of temperature.
Answer:
Correct option: Vapor pressure increases with temperature
Explanation:
Vopor pressure: it is defined as the pressure exerted by gaseous molecule on the surface of container and vopor is produced by only volatile component of solution.
Kinetic energy of molecule depends on the temperaure of sample or molecules when temperature is increased then its kinetic energy also increased and as kinetic energy increases then the chances of molecule going into vapour phase increases thereby increasing the vapour pressure.
hence Vapor pressure increases with temperature
Answer:
2.222 that is the answer i think might want to ask
One mole of Na2SO4 is 6.022 * 10^(23) molecules. We can divide this into the quantity in the question to find a value of 1.5/6.022 = 0.2491 moles. Rounded to two significant figures and put in scientific notation, we can rewrite this quantity as 2.5 * 10^(-1) moles
