No. Wulfenite has a hardness of 2.75-3.0 on the Mohs scale, so it is not hard enough to make a gem out of it.
Wulfenite is a very popular and highly sought-after mineral by collectors. It isused as a minor ore of lead and molybdenum.
Hii there !
The reaction accompanying production of water in this case would be -
Thus ,by observing the reaction, we can conclude that 1 mole of Hydrogen (H
)react with 1/2 mole of oxygen(O)to produce 1 mole of water (HO)
Therefore, 37.0 moles of hydrogen(H) will be required to produce 37.0 moles of water.
Hope it helps.
175.8 g NaCl to moles:
(175.8 g)/(58.44 g/mol) = 3.008 mol NaCl
Molarity = moles of solute/volume of solution in liters
(3.008 mol NaCl)/(1.5 L) = 2.0 M.
The molarity of this solution would be 2.0 M.
