Answer:
A pressure value more than 0.012 atm must be applied to the apparatus at 20.0°C to produce pure water.
Explanation:
When pressure more than the value of osmotic pressure of the solution is applied to the solution then water will move out from the solution which is termed as reverse osmosis.
Given that 1.70 grams of sucrose was present in 1 L of solution.
Moles of sucrose present in 1 liter of solution =
C = 0.004971 mol/L
Temperature of the solution = T = 20.0°C = 20.0+273 K = 293 K
Osmotic pressure of soluion =
A pressure value more than 0.012 atm must be applied to the apparatus at 20.0°C to produce pure water.
Experiments are usually done under the fumehood because the chemical processes will sometimes creates noxious or toxic gases
unknown chemical reaction could potentially create toxic fumes so generally a safety issue
sulfur dioxide will create a rotten egg smell off the top of my head which is used in order to detect gas leaks, wouldnt want to be smelling that, thinking there's a gas leak, evacuating the building, only to realize it was from an experiment or accidental mixture in the waste bin
pKa= -log(ka)
= -log(2.3*10^-9)
= 8.64
Now pH can be calculated using equation:
pH=pka+log(BrO-)/(HBrO)
8.08 =8.64+log(BrO-)/(HBrO)
log(BrO-)/(HBrO)=8.08-8.64
= -0.56
(BrO-)/(HBrO)= 10^-0.56
=0.275
<u>molar</u><u> </u><u>mass</u><u> </u><u>of</u><u> </u><u>CCl4</u><u> </u><u>=</u><u> </u><u>1</u><u>5</u><u>4</u>
<u>density</u><u> </u><u>=</u><u> </u><u>1</u><u>.</u><u>5</u><u>9</u><u> </u><u>g</u><u>/</u><u>cm</u><u>³</u>
<u>volume</u><u> </u><u>=</u><u> </u><u>1</u><u>0</u><u> </u><u>liters</u>
Explanation:
Plasma is the clear, straw-colored liquid portion of blood that remains after red blood cells, white blood cells, platelets and other cellular components are removed. It is the single largest component of human blood, comprising about 55 percent, and contains water, salts, enzymes, antibodies and other proteins.