Given that the molality of the Iron(III) chloride solution = 1.541 mol /kg water
1.541 mol is present per L solution
Calculating mass of from 1.541 mol:
Mass of solvent = 1 kg
Total mass of the solution = 1000 g + 249.95 g = 1249.95 g solution
Density of the solution =
Molarity of the solution = 1.457 mol/L solution
Calculating mass of from 1.457 mol:
Volume of the solution = 1 L *
Mass of solution =
Mass percentage of in the solution =
Therefore density of the solution is 1.25 g/mL
Mass percent of the solution is 18.9 %
I believe it is june july september
Answer:
Sour taste, low pH, and dissolves metals
Explanation:
Acids have a pH below 7.0. Acids turn litmus paper red as they have pH below 7.0. Bases on the other hand have pH above 7.0. Water has a neutral pH of 7.0.
Acids have a sour taste. For example citric acids found in lemons make it sour. Vinegar has acetic acid which makes it sour.
Acids dissolve metals to form salts and hydrogen gas
2HCl + Zn → ZnCl₂ + H₂
Answer:
PV=nRt
Therefore n(number of moles)=PV/RT
=>(0.49×3.80)/(0.08206×320)
Therefore Number of moles is = 0.071mols
Explanation: By using the Real gas equation..
PV=NRT .
We can solve for the number of moles of Ar by making N the subject..
Always make sure you pressure is In atm, your Volume is in Litres and temperature in degree Kelvin.
Also Recall the universal gas constant R used in this type of questions which is 0.08206.
Hence l, by making N the subject we get our answer as