Answer:
The correct answer is D
Explanation:
Step 1: Data given
Volume of helium = 500 L
STP:
⇒ 25°C = 298 Kelvin
⇒ 1.00 atm
⇒ 22.4 L
This means 1 mole of Helium gas at STP has a volume of of 22.4 L
Since 22.4 L of Helium gas = 1 mol
Then 500 L of helium gas = (500L/ 22.4L) * 1 mol = 22.3 mol
The correct answer is D
Answer:
See the answer below
Explanation:
From the original equation in the image, the mole ratio of C:CO2:CO is 1:1:2. This means that for every 1 mole of C and CO2, 2 moles of CO would be produced.
Now, looking at the simulation below the equation of the reaction, 3 moles of C and 8 moles of CO2 were supplied as input. Applying this to the original equation of reaction, C seems to be a limiting reagent for the reaction because the ratio of C to CO2 should 1:1.
Hence, taking all the 3 moles of C available means that only 3 moles out of the available 8 for CO2 would be needed. 3 moles c and 3 moles CO2 means that 6 moles CO would be produced (remember that the ratio remains 1:1:3 for C, CO2, and CO). This means that 5 moles CO2 would be leftover.
<em>In other words, all the 3 moles C would be consumed, 3 out of 8 moles CO2 would be consumed, and 6 moles CO would be produced while 5 moles CO2 would be leftover. </em>
The answer is C. Measure from crest to crest.
I believe it's B. By volcanic dust do you mean ash?<span />
Answer:
Explanation:
Antacids reduce the amount of stomach acid, relieving your heartburn. These medications can also be used to soothe stomach upset, indigestion and other pains in your stomach. Some antacids contain simethicone, which reduces gas. Antacids that you can get without a prescription include: