Answer:
P = 58.52 atm
Explanation:
Given data:
Mass of sample = 32.0 g
Pressure of sample = ?
Volume of gas = 850 cm³
Temperature of gas = 30°C
Solution:
Number of moles of gas:
Number of moles = mass/molar mass
Number of moles = 32.0 g/ 16 g/mol
Number of moles = 2 mol
Pressure of gas:
PV = nRT
P= Pressure
V = volume
n = number of moles
R = general gas constant = 0.0821 atm.L/ mol.K
T = temperature in kelvin
Now we will convert the temperature.
30+273 = 303 K
850 cm³ × 1L /1000 cm³ = 0.85 L
by putting values,
P× 0.85 L = 2 mol × 0.0821 atm.L/ mol.K × 303 K
P = 49.75 atm.L/ 0.85 L
P = 58.52 atm
Answer:
200 g/L
Explanation:
The concentration of a solution (also called molarity) can be calculated with the formula:
where
m is the mass of the solute
V is the volume of the solution
For the solution in this problem we have:
m = 50g is the mass of the solute
V = 250 mL = 0.250 L is the volume of the solution
Therefore, the concentration of the solution is:
Answer:
The correct answer is "Short acting".
Explanation:
The client gets a blood glucose reading of 218 mg/dL (12.1 mmol/L), and immediately supplies a dose of short-acting insulin. Normal blood glucose levels are between 70 and 100 mg/dl fasting and less than 140 mg/dl two hours after each meal. In this way, the type of insulin that should be injected is short-acting, since your blood glucose level is much higher than the limit set for before eating.
Have a nice day!
