Answer:
0.1296 grams of aluminum reacted
Explanation:
Equation of reaction:
2Al + 6HCl = 2AlCl3 + 3H2
From the ideal gas equation
PV = nRT
n = PV/RT
P = (25.2/760)atm + 0.89atm = 0.923 atm
V = 190.6 ml = 190.6cm^3
R = 82.057cm^3.atm/gmol.K
T = 26°C = 26+273K = 299K
n = 0.923×190.6/82.057×299 = 0.0072 moles of H2
From the equation of reaction
3 moles of hydrogen gas is formed from 2 moles of aluminum
Therefore, 0.0072 moles of hydrogen gas is formed from (0.0072×2/3 = 0.0048) moles of aluminum
Number of moles of aluminum that reacted = 0.0048 moles
Mass of aluminum that reacted = number of moles × MW = 0.0048 × 27 = 0.1296 grams
Answer:
yes but very little exposure
Explanation:
a gentle burial also increases an organisms chances of becoming more fossil like
He bought 10 bottles a month at $1.00 and 8 bottles a month at $1.50.
Answer: Hydrogen and helium
Explanation:
The solution for this problem is:
Let x = speed of wind
Speed of plane with the wind = x + 100
Speed of plane against the wind = 100 -x
We will be using the formula for distance which is (Rate)(Time), getting the formula for time would be distance/rate Time to travel 600 miles with the wind = Time to travel 400 miles against the wind 600/(x + 100) = 400/(100 - x)
400(x + 100) = 600(100 - x)
400x + 40000 = 60000 - 600x
1000x = 20000
x = 20000/1000
x = 20 mph
