Answer: nitrogen and hydrogen
Explanation:
2NH3 —> N2 + 3H2
Hey there !
The answer would be C. 0.68L
Hope this helps !
Firstly calculate the grams in the last 8 percent before moving onto the pyrite section.
50.8x0.08=4.064g
We know that iron ore in this case has 92 percent pyrite which contains 46.5 percent iron so we do 50.8x0.92=46.736g from this we need to find 46.5 percent of the iron content in the 92 percent pyrite section then add this answer to the 8 percent of iron ore we found at the start.46.736x0.465=21.73224g
21.73224g+4.064=25.79624g of iron ore 25.8g(3sf)
The fossils of organisms that were widely distributed but only lived during a shorter period of time are called index fossils.
Answer:- 0.158 moles
Solution:- Moles are calculated on dividing the grams by the molar mass.
25.0 grams of are given and we are asked to calculate the moles.
For this we need the molar mass so let's calculate it first.
Molar mass is the sum of atomic masses of all the atoms present in the molecule.
Molar mass =
= 158.036 gram per mol
Now, we will divide the given grams by molar mass to get the moles and the set is shown as:
=
So, there are 0.158 moles of .