Answer:
140.32mL per hour
Step-by-step explanation:
Rate of leakage of nitrogen ballon = 75 mL/h
Rate of leakage of helium ballon = x
Molar mass of nitrogen= Mn = 14
Molar mass of helium = Mh = 4
Effusion formula
Rate of effusion of helium/ Rate of effusion of nitrogen= √(Molar mass of nitrogen/Molar mass of helium)
Rate of effusion of helium = 75mL/h * √(14/4)
= 140.32mL/h
374+286+397+423 =1480 ÷4 = 370 is mean
Answer:
Step-by-step explanation:
-6 ≥ x
-2 ≤ x
I don't think you can combine this into one statement.
Your line looks something like
<---------------O O------------------------->
-6 -2
Shade in the 2 Os. The shaded in Os are included in the way the line looks.
Answer: 6 Quarters
12 Pennies
11 Dimes
Written answer: Thomas has 6 Quarter, 12 pennies, and 11 dimes in his pocket.
Show your work: 6•0.25= 1.50$
12•1= 0.12$
11•10= 1.10$
1.50$+0.12$+1.10$= 2.72$
