H₂ + CO₂ ⇄ CO + H₂O
1 mol H₂ - 1 mol H₂O
x mol H₂ - 30.6 mol H₂O
x=30.6*1/1=30.6 mol (<span>theoretically)</span>
Answer:
Mass = 4.44 g
Explanation:
Given data:
Number of moles of Ne = 0.220 mol
Mass in gram = ?
Solution:
Formula:
Number of moles = mass/ molar mass
Molar mass of Ne = 20.2 g/mol
by putting values,
0.220 mol = mass/ 20.2 g/mol
Mass = 0.220 mol × 20.2 g/mol
Mass = 4.44 g
Density requires at least two things. In this case we would need volume of the object in addition to the mass. Density is equal to the mass divided by volume p = V/m
If a neutral element has 4 electrons in its
4P shell then its electron configuration is 1S2 2S2 2P6 3S2 3P6 3D10 4P4. therefore the sum of electrons = 2+2+6+2+6+10+4=32 electrons
since the element is neutral, so number of electrons = number of protons. hence number of protons that element has is 32
the only element that has 32 protons is germanium
so the answer is Ge