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sofyan00404
28.11.2019 •
Chemistry
Suppose that the stomach contains 0.200l of 0.05m hcl. what mass of the antacid mg(oh)2 is required to completely neutralize all of the hcl
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Ответ:
2HCl + Mg(OH)2 = MgCl2 + 2HOH
2) Find moles of HCl
(0.05moles/1L)(.200L) = .01 moles HCl
3) Use conversions to find moles of Mg(OH)2.
(.01mol HCl * 1mol Mg(OH)2)/ 2mol HCl =.005 mol Mg(OH)2
4) .005 * 58.32 (the molar mass) = .2916g Correct sig figs = 0.29g Mg(OH)2
Ответ:
the hot rocks heat up the water around it, serving as a medium. then that heat warms up the cold rock until everything in the tank is the same temperature..
Explanation:
sorry for that pos above.