January 17, 2022, 11:48:40 AM
Forum Rules: Read This Before Posting


Topic: help with zinc sulfate  (Read 1621 times)

0 Members and 1 Guest are viewing this topic.

angyc

  • Guest
help with zinc sulfate
« on: October 31, 2015, 10:00:43 PM »
I need to make a mineral mix for horses which requires 462g of zinc sulfate monohydrate. I can only source z.s. heptahydrate. Z.s.m is 35% whilst z.s.h is 22%. Can someone do the maths for me to give me the correct amount of z.s.h I need to use?? Many thanks.

Offline Borek

  • Mr. pH
  • Administrator
  • Deity Member
  • *
  • Posts: 26917
  • Mole Snacks: +1746/-403
  • Gender: Male
  • I am known to be occasionally wrong.
    • Chembuddy
Re: help with zinc sulfate
« Reply #1 on: November 01, 2015, 03:03:32 AM »
In both cases you need exactly the same number of moles of Zn. What is the molar mass of ZnSO4·H2O? How many moles of the salt in the 462 g of the solid? What is the molar mass of ZnSO4·7H2O? What is the mass of the same number of moles of the salt?
ChemBuddy chemical calculators - stoichiometry, pH, concentration, buffer preparation, titrations.info, pH-meter.info

Offline Enthalpy

  • Chemist
  • Sr. Member
  • *
  • Posts: 3648
  • Mole Snacks: +300/-58
Re: help with zinc sulfate
« Reply #2 on: November 01, 2015, 08:08:22 PM »
A table of the elements' mass is there
https://en.wikipedia.org/wiki/Relative_atomic_mass
it goes like: count the atoms in the molecules, add the masses.

Sponsored Links