MgS2o3 weights (24.305) + 3(16) grams pre mole so if you divide 181 g by that number you will have the number of moles. Grams*(moles/grams)=moles
Answer: performing lab and field tests,
designing and monitoring waste-disposal sites,
preserving water supplies,
reclaiming contaminated land and water
Explanation:
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Answer:
The pH of pure water at this temperature is 6.88.
Explanation:
Ionization constant of water = 

Water will dissociate into equal amount of hydronium and hydroxide ions
![[H_3O^+] = [OH^-]= x](https://tex.z-dn.net/?f=%5BH_3O%5E%2B%5D%20%3D%20%5BOH%5E-%5D%3D%20x)
![K_w=[H_3O^+]\times [OH^-]](https://tex.z-dn.net/?f=K_w%3D%5BH_3O%5E%2B%5D%5Ctimes%20%5BOH%5E-%5D)
![K_w=1.7 x 10^{-14}=[H_3O^+]\times [OH^-]](https://tex.z-dn.net/?f=K_w%3D1.7%20x%2010%5E%7B-14%7D%3D%5BH_3O%5E%2B%5D%5Ctimes%20%5BOH%5E-%5D)


The pH of the solution is a negative logarithm of hydronium ions concentration.
The pH of pure water at this temperature:
![pH=-\log [H_3O^+]](https://tex.z-dn.net/?f=pH%3D-%5Clog%20%5BH_3O%5E%2B%5D)

212'F
100'C
Melting Point: 32'F (0'C)
Density: 1 g/cm^3
Molar Mass: 18.01528 g/mol