Answer:
20 mol H₂
General Formulas and Concepts:
<u>Chem</u>
Explanation:
<u>Step 1: Define</u>
RxN: C + H₂ → CH₄
8 moles CH₄
<u>Step 2: Balance RxN</u>
C + 2H₂ → CH₄
<u />
<u>Step 3: Stoichiometry</u>
= 16 mol H₂
<u>Step 4: Check</u>
<em>We are given 1 sig fig. Follow sig fig rules.</em>
16 mol H₂ ≈ 20 mol H₂
Answer:
they will die because they need to be in salt water
The number of hydrogen atoms that are in 7.80 moles of ammonium sulfide are 3.756 x 10^25 atoms
<u>calculation</u>
Step 1: calculate the moles of H in (NH4)2S
since there are 8 atoms of H in (NH4)2S the moles of
H = 8 x7.80 = 62.4 mole
Step 2: use of Avogadro's law constant to determine the number of H atom
that is 1 mole = 6.02 x10^23 atoms
62.4 moles=? atoms
= [ 62.4 x 6.02 x10^23]/ 1 mole= 3.756 x10^25 atoms
the summer solstice should be your answer
