Which one is heavier?1mole of phd4,1mole oh h2 and 1 mole of PB(NO3)2
Please review what you typed. My money is on the H2 but I have no idea of the grams/mol of whatever phd4 is. Is it an advanced degree?
Probably an advanced degree, something like a post-post-post doc. My money is on Pb(NO3)2.
Phd4 could be phenyldeuteride but that wouldn't come close to lead(ii) nitrate; i.e., plumbous nitrate. I'm more inclined, when I look at the other typos that this just another typo. Assuming something like phenyl for Ph that is C6H2 + D4 = 72 + 2 + 8 = ?
H2 = 2
Pb(NO3)2 = 207 + 62 + 62 = ?
To determine which compound is heavier, we need to compare the molar masses of each compound.
The molar mass of a compound is calculated by adding up the atomic masses of all the elements in the compound according to their stoichiometric coefficients.
1 mole of PdH4:
- The atomic mass of Pd (palladium) is 106.42 g/mol.
- The atomic mass of H (hydrogen) is 1.01 g/mol.
So, the molar mass of PdH4 is:
(1 mol x 106.42 g/mol) + (4 mol x 1.01 g/mol) = 110.46 g/mol.
1 mole of H2:
- The atomic mass of H (hydrogen) is 1.01 g/mol.
So, the molar mass of H2 is:
2 mol x 1.01 g/mol = 2.02 g/mol.
1 mole of Pb(NO3)2:
- The atomic mass of Pb (lead) is 207.2 g/mol.
- The atomic mass of N (nitrogen) is 14.01 g/mol.
- The atomic mass of O (oxygen) is 16.00 g/mol.
So, the molar mass of Pb(NO3)2 is:
(1 mol x 207.2 g/mol) + (2 mol x (14.01 g/mol + 3 x 16.00 g/mol)) = 331.2 g/mol.
Comparing the molar masses, we find that 1 mole of Pb(NO3)2 has the highest molar mass of 331.2 g/mol, followed by 1 mole of PdH4 with a molar mass of 110.46 g/mol, and 1 mole of H2 with a molar mass of 2.02 g/mol. Therefore, 1 mole of Pb(NO3)2 is the heaviest among the given compounds.
To determine which substance is heavier, we need to compare the molar masses of each compound.
First, let's find the molar mass of each compound.
1. PHD4:
To calculate the molar mass of PHD4 (tetraphosphine dodecahydride), we need to add up the atomic masses of all the elements in the compound.
The chemical formula PHD4 consists of one phosphorus atom (P) and four hydrogen atoms (H).
The atomic mass of phosphorus (P) is 30.97 g/mol, and the atomic mass of hydrogen (H) is approximately 1.01 g/mol.
So, the molar mass of PHD4 is:
1 (P) * 30.97 g/mol + 4 (H) * 1.01 g/mol = 30.97 g/mol + 4.04 g/mol = 35.01 g/mol
2. H2:
The chemical formula H2 represents molecular hydrogen, and it consists of two hydrogen atoms (H).
The atomic mass of hydrogen is approximately 1.01 g/mol.
So, the molar mass of H2 is:
2 (H) * 1.01 g/mol = 2.02 g/mol
3. PB(NO3)2:
The compound PB(NO3)2 consists of one lead atom (Pb), two nitrogen atoms (N), and six oxygen atoms (O).
The atomic mass of lead (Pb) is approximately 207.2 g/mol, the atomic mass of nitrogen (N) is approximately 14.01 g/mol, and the atomic mass of oxygen (O) is approximately 16.00 g/mol.
So, the molar mass of PB(NO3)2 is:
1 (Pb) * 207.2 g/mol + 2 (N) * 14.01 g/mol + 6 (O) * 16.00 g/mol = 207.2 g/mol + 28.02 g/mol + 96.00 g/mol = 331.22 g/mol
Now, comparing the molar masses of the compounds:
1 mole of PHD4 = 35.01 g
1 mole of H2 = 2.02 g
1 mole of PB(NO3)2 = 331.22 g
Among these compounds, PB(NO3)2 has the highest molar mass, so 1 mole of PB(NO3)2 is the heaviest.