C. boiling point
boiling point is the temperature at which all liquids change from liquid to gas
Density=mass / volume
Data:
mass=30.0 g
volume=volume with rock - volume without rock=27.6 ml - 22.3 ml=5.3 ml
1 ml=cm³ ⇒ 5.3 ml=5.3 cm³
Therefore:
Density=30.0 g / 5.3 cm³=5.66 g/cm³
Answer: density = 5.66 g/cm³
Answer:
The answer to your question is:
Explanation:
Ideal gases
PV = nRT
P = nRT / V
P = (1)(0.082)(303) / 0.5
P = 49.7 atm
Real pressure
P = V²(nRT)/ (V - nb) - an²
P = (0.5)²(1)(0.082)(303) / (0.5 - (1)(0.03219) - (1.345)(1)²
P = (6.2115)/(0.4678) - 1.345
P = 13.28 - 1.345
P = 11.93 atm
formează o rețea ionică de atomi de sodiu și clor
The correct answer is B. Given a same volume of a solution, the concentrated solution has more solute than the dilute solution. For instance, we are given two NaOH solutions having a volume of 1L one has a concentration of 1M and the other is 2M. The latter has more solute since it has 2 moles of NaOH while the other only has 1 mole.
