Answer:
3.3 L
Explanation:
Step 1: Given data
- Initial pressure (P₁): 2.7 atm
- Initial volume (V₁): 1.6 L
- Final pressure (P₂): 1.3 atm
Step 2: Calculate the final volume of the balloon
Inside the balloon we have gas. If we consider it behaves as an ideal gas, we can calculate the final volume using Boyle's law.
P₁ × V₁ = P₂ × V₂
V₂ = P₁ × V₁ / P₂
V₂ = 2.7 atm × 1.6 L / 1.3 atm
V₂ = 3.3 L
Atomic mass is the same as the grams per mole. 2.98x10²² is 0.0495 mol (2.98e22 ÷ 6.02e23). If we have 4 g/0.0495 mol, that's 80.81 g/mol, so the atomic mass is 80.81 amu. Make sense?
Answer:
you place it where you think it should be placed
Explanation:
Electrons are negative, protons are positive, and neutrons have no charge