Answer:How can you tell how much gas is in these containers?
Small gas tanks are often used to supply gases for chemistry reactions. A gas gauge will give some information about how much is in the tank, but quantitative estimates are needed so the reaction will be able to proceed to completion. Knowing how to calculate needed parameters for gases is very helpful to avoid running out too early.
Conversions Between Moles and Gas Volume
Molar volume at STP can be used to convert from moles to gas volume and from gas volume to moles. The equality of 1 mole = 22.4 L is the basis for the conversion factor.
Sample Problem One: Converting Gas Volume to Moles
Many metals react with acids to produce hydrogen gas. A certain reaction produces 86.5 L of hydrogen gas at STP. How many moles of hydrogen were produced?
Step 1: List the known quantities and plan the problem.
Known
86.5 L H2
1 mol = 22.4 L
Unknown
moles of H2
Apply a conversion factor to convert from liters to moles.
Step 2: Calculate.
Explanation:
Answer:
It contains more water vapor than cold air
Answer:
2 moles of C-12 have 24g mass
Explanation:
Given data:
Number of moles of C-12= 2 mol
Mass of C-12 = ?
Solution:
Formula:
Number of moles = mass / molar mass
Molar mass of C-12 = 12 g/mol
Now we will put the values in formula.
2 mol = mass / 12 g/mol
Mass = 2 mol × 12 g/mol
Mass = 24 g
Thus 2 moles of C-12 have 24 g mass.
Answer:
Pterosaurs are more closely related to crocodilians. They share a more recent common ancestor than do pterosaurs and turtles.
Explanation:
Hope this Helps! :)
☁️ Answer ☁️
annyeonghaseyo!
Your answer is:
it can bond with oxygen to form rust or iron oxide. and it can bond with carbon to form steel.
Here's another one: Iron bonds with lots of things: Oxygen (Ferric Oxide = rust),Chlorine (Ferric Chloride]), Fluorine, ... , even other Iron (in aMetallic Bond or crystal).
Hope it helps.
Have a nice day hyung/noona!~ ￣▽￣❤️
