It is the transition metals because the first element ever synthed was technetium, but surely you've googled this by now. ;)
Answer: 2.4e+24
Explanation:
It could just as easily have been selected to be 1/24th of the mass of one atom of a carbon atom, or 1/10th the mass of a calcium atom, A sample of 250 grams is equivalent to 1.58 moles of potassium permanganate.
Answer:
T = 643K = 643-273.15 = 369.85°C = 370°C = maximum safe operating temperature
Explanation:
The actual question has following data which the question given has missing
The vessel is a stainless-steel cylinder that measures wide 25.0 cm and 30.0 cm high.
The maximum safe pressure inside the vessel is 6.60 MPa.
The vessel may contain up to 0.800 kg of carbon monoxide gas.
Volume of cylinder = pi x r^2 x h = 3.14 x (25/2)cm^2 x 30cm = 14725.78 cm^3 or 0.01472578 m^3
Now, using ideal gas law, PV = nRT
P = 6.60×10^6 Pa
V = 0.01472578 m^3
n= no. of moles = mas staken/ molar mass of CO2 = 800g/44g/mol = 18.18
moles
R = 8.314 J/mol.K
So, (6.60x10^6 ) x 0.01472578 = 18.18×8.314×T
T = 643 K = 643-273.15 = 369.85°C = 370°C = maximum safe operating temperature
Answer:
4tbs
Explanation:
A 75-lb dog must be dewormed. If the daily dose of the dewormer is 1 tsp/25 lb of body weight for 3 days, approximately how much should be given each day?
1 tbs = 3 tsp
answer: 1 tbs