Let's take a step by step approach to why the answer is 0.56 g
01.Now we know that for every mole of aluminum hydroxide Al(OH)3 three (3) moles of HCl are required
02. We have 400 mg of Al(OH)3 and it's molar mass is 78
So in our 400 mg we have
0.4/78 moles = 0.00526 moles
03 as seen from step 1 we need 3 times the HCl moles than aluminum hydroxide
So for 0.005 moles of it we need
0.00526 ×3 = 0.01538 moles of HCl
04. 1 mole of HCl = 36.46 gram
So 0.01538 moles =
0.01538 ×36.46
= 0.56 grams
I hope this helps. If you have any query or want more detailed explanation, feel free to ask in the comments section below.
can someone please explain to ne how they got 0.56 grams Given the equation: Al(OH)3 (s)...
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