QQuestionAnatomy and Physiology
QuestionAnatomy and Physiology
What is the mass of 3.81 mol of PH₃?
- 34.0 g
- 3.81 g
- 8.92 g
- 130. g
- 0.112 g
6 months agoReport content
Answer
Full Solution Locked
Sign in to view the complete step-by-step solution and unlock all study resources.
Step 1: To find the mass of 3.81 mol of PH₃, we need to multiply the number of moles by the molar mass of PH₃.
The molar mass of PH₃ is the sum of the atomic masses of each atom in the molecule: P (30.97 g/mol) + 3 * H (3 x 1.01 g/mol) = 30.97 g/mol + 3.03 g/mol = 34.00 g/mol.
Step 2: Now, multiply the number of moles (3.81 mol) by the molar mass (34.00 g/mol).
3.81 mathrm{~mol} imes frac{34.00 g}{1 mathrm{~mol}} = 129.54 g
Final Answer
The mass of 3.81 mol of PH₃ is 130. g.
Need Help with Homework?
Stuck on a difficult problem? We've got you covered:
- Post your question or upload an image
- Get instant step-by-step solutions
- Learn from our AI and community of students