<u>Answer:</u> The density of substance is
<u>Explanation:</u>
To calculate density of a substance, we use the equation:
We are given:
Mass of substance = 61.6 g
Volume of substance =
Putting values in above equation, we get:
Hence, the density of substance is
Factually, finland has the least amount of air pollution at only a 90.68 EPI score
Answer:
22.6 g
Explanation:
First we <u>use the PV=nRT equation</u>:
- R = 0.082 atm·L·mol⁻¹·K⁻¹
- T = 24 °C ⇒ 24 + 273.16 = 297.16 K
We <u>input the data</u>:
- 7.5 atm * 2.3 L = n * 0.082 atm·L·mol⁻¹·K⁻¹ * 297.16 K
And <u>solve for n</u>:
Then we <u>convert 0.708 moles of oxygen gas (O₂) to grams</u>, using its <em>molar mass</em>:
- 0.708 mol * 32 g/mol = 22.6 g
Answer:
Which phrase best describes wave motion? Movement of energy through space or a medium.
Explanation:
Answer option A.