Answer:
168.72 grams
Explanation:
Density = Mass/Volume
Volume = 14.8
Mass = ?
Density = 11.4
Let x = mass
11.4 = x/14.8
Multiply both sides by 14.8
14.8(11.4 = x/14.8)
x = 168.72
B. The number of collisions with enough energy to react increases.
The increase in temperature increases the average kinetic energy, so more collisions have enough energy to overcome the activation energy barrier.
Hydrogen and oxygen cn form a polar covalent bond
To solve this, let's assume ideal gas behavior.
PV=nRT
Let's solve for n. Convert units to SI units first.
Pressure = 833 torr(101325 Pa/760 torr) = 111,057.53 Pa
Volume = 250 mL(1 L/1000 mL)(1 m³/1000 L) = 2.5×10⁻⁴ m³
Temperature = 42.4 + 273 = 315.4 K
n = (8,314 J/mol·K)(315.4 K)/(111057.53 Pa)(2.5×10⁻⁴ m³)
n = 94.45 mol
The molar mass of ammonia is 17.031 g/mol.
Mass = 94.45*17.031 = <em>1,608.51 g ammonia</em>