Answer: #20
Explanation:
if the sun got dimmer then plants would that need a high tempature would not be able to grow it would also be very cold
Answer:
The volume percent is 8.71 % v/v
Explanation:
The volume percent (v/v) of the solution can be found using the following equation:
(1)
Where:
: is the solute volume = 28.3 mL
: is the solution volume = 325 mL
By introducing the above values into equation (1) we have the volume percent:
Therefore, the volume percent is 8.71 % v/v.
I hope it helps you!
Answer:
1.10 g/L
Explanation:
Step 1: Calculate Henry's constant (k)
The solubility of a gas (C) is 0.890 g/L at a pressure (P) of 121 kPa. Solubility and pressure are related through Henry's law.
C = k × P
k = C / P
k = (0.890 g/L) / 121 kPa = 7.36 × 10⁻³ g/L.kPa
Step 2: Calculate the solubility of the gas if the pressure is increased to 150 kPa
We will use Henry's law.
C = k × P
C = (7.36 × 10⁻³ g/L.kPa) × 150 kPa = 1.10 g/L
Answer:
P₂ = 0.94 atm
Explanation:
Given data:
Initial volume = 16 cm³
Final volume after mixing the initial volume into 1cm³ = 16 cm³ + 1 cm³ (17cm³)
Initial pressure = 1 atm
Final pressure = ?
Solution:
P₁V₁ = P₂V₂
P₂ = P₁V₁ /V₂
P₂ = 1 atm × 16 cm³ / 17cm³
P₂ = 16 cm³ . atm / 17cm³
P₂ = 0.94 atm
Pressure will change from 1 atm to 0.94 atm.
