Answer:
You can fill 212 balloons.
Explanation:
First we <u>calculate the helium moles in the small cylinder</u>, using <em>PV=nRT:</em>
- P = 14300 kPa ⇒ 14300 * 0.009869 = 141.13 atm
- R = 0.082 atm·L·mol⁻¹·K⁻¹
- T = 25 °C ⇒ 25 + 273.16 = 298.16 K
141.13 atm * 2.20 L = n * 0.082 atm·L·mol⁻¹·K⁻¹ * 298.16 K
Then we <u>calculate the number of moles that can fit in a single balloon</u>:
- 1.22 atm * 1.20 L = n * 0.082 atm·L·mol⁻¹·K⁻¹ * 298.16 K
Finally we <u>divide the total number of available moles by the number of moles in a single balloon</u>:
- 12.70 mol / 0.0599 mol = 212.09
So the answer is that you can fill 212 balloons.
Answer:
Yellow does not attract hummingbirds.
Explanation:
The most food wasn't taken out of the yellow feeders.
H20-h&o
Gold-au
Nitric acid-h,n,o
Cobalt-co
Oxygen-o
MAKE SURE THEY ARE CAPITALIZED
♥ Gather information we know:
Total Mass:
Solve:
<span>Gather more information and solve:
Percent of Oxygen: </span>
<span> </span>
Final answer: 19.44%
Answer:
The answer is
<h2>11.33 g/mL</h2>
Explanation:
The density of a substance can be found by using the formula
From the question
mass of metal = 34 g
volume of metal = final volume of water - initial volume of water
volume = 25.3 - 22.3 = 3.0 mL
The density is
We have the final answer as
<h3>11.33 g/mL</h3>
Hope this helps you