The density of ice is less than the density of water.
Fun fact: Water is the only known liquid that has this change it density.
It was a Cambridge UK scientist in the early part of the 20 th century who discovered the electron. His name was J J Thompson.
The answer would be B because you can go and find evidence and facts to conduct an investigation on that.
Hey there!:
Molar mass Ca(NO2)2 = 132.089 g/mol
Mass of solute = 120 g
Number of moles:
n = mass of solute / molar mass
n = 120 / 132.089
n = 0.0009084 moles of Ca(NO2)2
Volume in liters of solution :
240 mL / 1000 => 0.24 L
Therefore:
Molarity = number of moles / volume of solution
Molarity = 0.0009084 / 0.24
Molarity = 0.003785 M
Hope that helps!
See attachment file below.
Use formulas relating pka, ka, and ph
Hope it helped!
