Answer:
.67 L
Explanation:
.030 mol x 22.4 L / 1 mol = .67 L
22.4 was used because that is what 1 mol equals for a gas at stp.
Answer:
Advantage: Hydropower is a fueled by water, so it's a clean fuel source.
Advantage: It is a domestic source of energy in the US.
Disadvantage: Fish populations can be impacted if fish cannot migrate upstream past impoundment dams to spawning grounds or if they cannot migrate downstream to the ocean.
Disadvantage: Hydropower plants can be impacted by drought. When water is not available, the hydropower plants can't produce electricity.
Explanation:
Answer:
More than 50% of the 100 billion stars in the Milky Way galaxy have at least one planet orbiting.
Explanation:
This is False so this would be your Answer
Answer:
533.33 mg quinine
Explanation:
First we<u> calculate the concentration of the diluted sample</u>, using the values obtained by the standard:
- 288 * 100 ppm / 180 = 160 ppm
Now we use the dilution factors to <u>calculate the concentration of quinine in the original sample</u>:
- 160 ppm * 100mL/15mL = 1066.67 ppm
ppm can be defined as <u>mg of quinine</u>/L solvent:
500 mL solution ⇒ 500/1000 = 0.5 L
- 1066.67 ppm * 0.5L = 533.33 mg quinine
