Since Janice was given a mixture of alcohol and water, her teacher suggested that she use temperature to separate the two substances. The property demonstrated by the experiment is D. boiling. The boiling point refers to the temperature at which the liquid phase of the substance will turn into vapor. Water is known to boil at 100°C at atmospheric pressure while alcohols are generally known to have a boiling point lower than that of water. In this experiment, knowing that the two substances had a significant difference in boiling temperature was crucial to be able to separate them into their pure substances.
Answer:
208.6 K
Explanation:
V1/T1 = V2/T2
T2 = T1 V2 / V1
T must be in K units
T2 = 298 * 1.75 / 2.5 = 208.6 K
I’m pretty sure the answer is C
Answer:
A. carrots look better when given more water
Answer:
80.8 mL
Explanation:
From the question given above, the following data were obtained:
Initial volume (V₁) = 74.5 mL
Initial pressure (P₁) = 98.0 kPa
Final pressure (P₂) = 90.4 kPa
Final volume (V₂) =?
The final volume of the gas can be by using the Boyle's laws equation as follow:
P₁V₁ = P₂V₂
98 × 74.5 = 90.4 × V₂
7301 = 90.4 × V₂
Divide both side by 90.4
V₂ = 7301 / 90.4
V₂ = 80.8 mL
Thus, the volume of the gas is 80.8 mL
