Answer:
mass molar of gas (Mw):
Mw = 107 g/mol
Explanation:
∴ m gas = 3.82 g
∴ V gas = 0.854 L
∴ T = 302 K
∴ P = 1.04 atm
ideal gas:
∴ n = m / Mw
⇒ PV = RTm/Mw
⇒ Mw = RTm / PV
⇒ Mw = ((0.082 atm.L/K.mol)*(302 K)*(3.82 g)) / ((1.04 atm)*(0.854 L)
⇒ Mw = 106.51 g/mol ≅ 107 g/mol
Answer:
1.67 M
Explanation:
The following data were obtained from the question:
Initial volume (V1) of solution = 250 mL
Initial Molarity (M1) of solution = 0.5 M
Final volume (V2) of solution = 75 mL
Final Molarity (M2) of solution =?
Thus, we can obtain the final molarity of the solution by using the following formula:
M1V1 = M2V2
0.5 × 250 = M2 × 75
125 = M2 × 75
Divide both side by 75
M2 = 125 /75
M2 = 1.67 M
Thus, the new Molarity of the solution is 1.67 M.
A yellow book, the brighter the color the less it absorbs and the more it reflects. The darker the color the more it absorbs and the less it reflects.