M1 = 17.45 M
M2 = 0.83 M
V2 = 250 ml
M1. V1= M2. V2
V1 = (M2. V2)/M1 = (0.83× 250)/ 17.45= 11.89 ml
Answer:
True
Explanation:
According to Aufbau's principle "sublevels with lower energies are filled up before those with higher energies".
Sublevels do not fill up in numerical order but there is a certain manner in which they are filled. The pattern is shown below:
1s 2s 2p 3s 3p 4s 3d 4p 5s 4d 5p e.t.c
We see that the 4s gets filled before the 3d sublevel.
Answer:
there are 50 states in the United States
Explanation:
you look at a map and count after that you count Alaska and Hawaii and you have 50
states
Answer:
1.33litres
Explanation:
number of moles of aluminum is 1.5/27
comparing mole ratio of between aluminum and hydrogen which is 1:1, the moles of hydrogen is also 1.5/27,
volume of hydrogen at 27 degrees Celsius (room temperature) is 1.5/27*24litres= 1.33 litres
