The answer is B. molality
P: Good conductor of heat and electricity - R: the delocalized electrons are
free to move around the structure
P: High melting and boiling points - R: the bonds in metals are very strong
P: Ductile (can be stretched and squashed) - R: because the electrons are free to move, the atoms can slide over each other.
P: Malleable (can be hammered into shape) - R: the bonds in metal don't break easily
Answer: 14.7 atm
Explanation:
Using the ideal gas law also called the general gas equation ;
PV = nRT
Where,
P = pressure
V = Volume
n = amount of substance
R = ideal gas constant
T = temperature
For the He sample;
V = 2.5 L
n = 1.5 mol
R = 8.314 J/mol/K or 0.0821 L atm/mol/K
T =?
T = PV/nR
T = 14.7*2.5/(1.5*0.0821)
T = 298.42K
For the H2 sample, since both are under the same condition :
P = nRT/V
P = (1.5*0.0821*298.42) ÷ 2.5
P = 14.7 atm.
Answer: 110.2 lbs
Explanation: First, let's determine how many kg the patient masses. Since the dose is 3.000 mg/kg we can convert that to 0.003000 g/kg. So
0.1500 g / 0.003000 g/kg = 50 kg.
So we know the patient has a weight of 50 kg. Now we simply multiply by 2.20462 to get lbs. So
50 kg * 2.20462 lbs/kg = 110.231 lbs
Rounding to 1 decimal place gives 110.2 lbs
