How many moles of elemental oxygen gas (O 2 ) must reactwith elemental phosphoru

Question

How many moles of elemental oxygen gas (O2) must reactwith elemental phosphorus (P4) to produce 39.3 moles ofdiphosphorus pentoxide?

1 mol

How many moles of elemental oxygen gas are required to produce 24.9moles of nitrogen monoxide?

2 mol

How many moles of hydrogen atoms are present in 66.4 moles ofammonia (NH3)?

3 mol

No Marks. To determine what portion of the question youhave correct, check question score at the top of theassignment.
Which atom bears the negative end of the bond dipole in each of thefollowing bonds?

Bond Negative Atom C-F 1____
P-Br 2 P-Sn 3

Bond Negative Atom C-F 1____
P-Br 2 P-Sn 3

Explanation / Answer

You need to write out the equations to get these right. Thentimes by the ratio of moles. 1.   5 O2 + P4 ----> 2 P2O5 39.3 * (5/2)=98.25 mol O2 2. O2 + N2 ----> 2 NO 24.9 * (1/2) =12.45 mol O2 3. There are three moles of H for every mol of themolecule so 66.4*3= 199.2 mol H Use the elecronegativity chart to find the moreelectronegative atom and thats your answer. 1. F 2. Br 3. P

Related Questions

Navigate

• Browse (All)
• Browse H
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.