<span>Help
How did the First Great Awakening affect attitudes toward religion in the colonies during the early 1700s?</span>
Cause (a substance) to be deposited in solid form from a solution.
Anything in group 18. These are the noble gases, known for having the stable octet in the outermost electron shell (with the exception of Helium). These elements include Neon, Xenon, and Radon, to name a few.
Answer:
Mole fraction for solute = 0.1, or 10%
Molality = 6.24 mol/kg
Explanation:
22.3% by mass → In 100 g of solution, we have 22.3 g of HCOOH
Mass of solution = 100 g
Mass of solute = 22.3 g
Mass of solvent = 100 g - 22.3g = 77.7 g
Let's convert the mass to moles
22.3 g . 1mol/ 46 g = 0.485 moles
77.7 g. 1mol / 18 g = 4.32 moles
Total moles = 4.32 moles + 0.485 moles = 4.805 moles
Xm for solute = 0.485 / 4.805 = 0.100 → 10%
Molality → mol/ kg → we convert the mass of solvent to kg
77.7 g. 1 kg / 1000g = 0.0777 kg
0.485 mol / 0.0777 kg = 6.24 m
Answer:
d. The number of moles
Explanation;
- According to the ideal gas;
P = nRT
where, P is the pressure, n is the number of moles, R is the ideal gas constant and T is the absolute temperature.
- Charles's law and Boyle's law revolve around, volume, temperature and pressure.
- According to Charles's law volume and temperature of a fixed mass of a gas are directly proportional at constant pressure.
- That is; V α T
- While based on Boyle's law, volume and pressure of a fixed mass of a gas are inversely proportional at constant temperature.
- That is, Pα 1/V
- We can, thus see that ideal gas law allows you to calculate number of moles unlike the case with Charles's and Boyle's law.
