jayla100101 jayla100101

08-11-2019
Chemistry

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how many moles of magnesium hydroxide are in 15 mL of milk magnesia (density of magnesium hydroxide 2.34g/mL)

Respuesta :

happygurlerin happygurlerin

08-11-2019

Answer:

0.60mol

Explanation:

Mg(OH)2

P=m/v

P=density

m=mass

v=volume

rearrange to get m=Pv

2.34g/mL x 15mL= 35.1g

then find the molar mass of magnesium hydroxide:

Mg=24.31g

H=1.01g

O=16.00g

molar mass Mg(OH)2 = 58.33g

then convert mass to mol:

35.1g/58.33g = 0.60mol

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