Answer:
The mass of magnesium that has been consumed, was 6.69 g
Explanation:
The reaction is this one:
3Mg (s) + N₂(g) → Mg₃N₂
3 moles of solid magnesium react with 1 mol of nitrogen, to make 1 mol of magnesium nitride.
If 9.27 grams of nitrogen react, we see that ratio is 1:1, so we make 9.27 grams of nitride.
Mass / Molar mass = Moles
9.27 g / 100.9 g/m = 0.092 moles
If we have 0.092 moles of nitride, ratio between Mg is 1:3 so, the rule of three will be:
1 mol of Nitride was produced by 3 moles of Mg (s)
0.092 moles of nitride were produced by, (0.092 .3)/1 = 0.275 moles
Mass og Mg = 24.3 g/m
Molar mass . Moles = Mass
0.275 m . 24.3g/m = 6.69 g
Explanation:
protons.
An acid can also be thought of as a chemical that can neutralize a base. Similarly, a base can neutralize an acid.
Acids turn litmus paper red, while bases make litmus paper turn blue.
Some examples of acids are sulfuric acid, hydrochloric acid, nitric acid, and so on. Some examples of bases are sodium hydroxide, potassium hydroxide, and so on.
Acids generally taste sour, while bases have a bitter taste.
Alkalis are the bases that are water-soluble, which means that they dissolve in water. In other words, not all bases are water-soluble, and only the water-soluble bases are known as alkalis. An example of an alkali is sodium hydroxide. It is a base because it can neutralize an acid, and because it is water-soluble, it is an alkali. An example of a base that is not alkali is copper oxide. This chemical can neutralize an acid, but it is insoluble in water.
In other words, all alkali are bases but not all bases are alkalis.
Also, an alkali has a hydroxide group, while a base has an oxide group in it.
Answer:
5 L.
Explanation:
From the question given above, the following data were obtained:
Initial volume (V1) = 10 L
Initial pressure (P1) = 2.5 atm
Final pressure (P2) = 5 atm
Final volume (V2) =.?
Since the temperature is constant, we shall apply the Boyle's law equation to determine the new volume of the gas. This can be obtained as follow:
P1V1 = P2V2
2.5 × 10 = 5 × V2
25 = 5 × V2
Divide both side by 5
V2 =25/5
V2 = 5 L
Thus, the new volume of the gas is 5 L
Evolution of theory. Evolution is the process of how the people evolve
First, we use avogadro's number to convert atoms into moles. Then, relate the number of moles from elemental to the compound. Lastly, we use conditions at STP to calculate the volume. We do as follows:
<span>9.86 x 10²⁸ O-atoms ( 1 mol / 6.022x10^23 atoms O) ( 1 mol N2O2 / 2 mol O ) ( 22.4 L / 1 mol ) = 1833809.37 L needed</span>
