Molarity =wt/M.wt * 1000/V
=> 1.77 = wt/180 * 1000/555
> wt = 1.77 * 180*555 /1000 = 176.823 g
Answer:
definite volume. indefinite shape
Answer:B
Explanation:due to osmosis and osmoregulation of the cell membrane
You need to use the equation q=mcΔT.
q=the heat absorbed or released
m= the mass of the sample (in this case 250g)
c=the specific heat of the sample (in this case 4.18J/g°C)
ΔT=the change in temperature (in this case 5°C)
When you plug every thing in you should get q=5225J or 5.225kJ
I hope this helps. Let me know if anything is unclear.
7 Valence lectrons I am pretty sure
