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Topic: Calculating reactions  (Read 5001 times)

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Offline sbrown

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Calculating reactions
« on: October 28, 2006, 03:52:39 PM »
I need to    Calculate how many grams of potassium iodide are necessary to completely react with 20.61 g of mercury(II) chloride.

I am not sure how to do this!!
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Offline sbrown

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calculating reaction
« Reply #1 on: October 28, 2006, 03:54:25 PM »
A reaction combines 113.4 g of lead(II) nitrate with 45.01 g of sodium hydroxide.  Calculate how much lead(II) hydroxide is formed.

Pb(NO3)2(aq)  +  2 NaOH(aq)  à  Pb(OH)2(s)  +  2 NaNO3(aq)

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Offline sbrown

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Calculate reaction
« Reply #2 on: October 28, 2006, 03:55:37 PM »
Sodium hydroxide reacts with phosphoric acid to give sodium phosphate and water.  Calculate the percent when 17.82 g of NaOH is reacted with excess phosphoric acid to yield 15.00 g sodium phosphate.

3 NaOH(aq)  +  H3PO4(aq)  à  Na3PO4(aq)  +  3 H2O(l)

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Offline Borek

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Re: Calculating reactions
« Reply #3 on: October 28, 2006, 04:17:36 PM »
Please read forum rules.
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Offline sbrown

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Re: Calculating reactions
« Reply #4 on: October 28, 2006, 04:22:43 PM »
Ok and? This is not homework or anything, I am taking an online class and trying to learn this stuff and have no idea where to start
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Offline Borek

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Re: Calculating reactions
« Reply #5 on: October 28, 2006, 04:30:34 PM »
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