With the numbers provided from an actual experiment can someone help me calculat

Question

With the numbers provided from an actual experiment can someone help me calculate the last 6 things. Please show work so I can understand what is going on. Thank You!

Alloy Sample No. mass of alloy paper: mass of weighing paper 0,402 a mass of sample .04 a wifh water levels equal, volume of gas gas measuring tube: volume Hi temperature H atmospheric pressure pressure H vapor pressure of water at T show the set-up for the calculation of n-H, here: (Show the actual calculation on the back of this page.) 30a mu ,030a n-H Smol Write your equations used to solve for n-Al and n-Zn here: (Show the actual calcu- n-Al n-Zn lations on the back of this page.U mass Al mass Zn Calculation of the %-zn in the %-Al: 6 allo (Show these calculations on the back of this page.)

Explanation / Answer

Balanced equation of the reaction-

Zn + 2H+ -->Zn2+ +H2(g)

2Al+6H+ ---> 2Al3+ +3H2

So moles of Al=2/3 moles H2=2/3 *0.00125 moles=8.3 *10^-4 moles

mass of Al=(8.3 *10^-4 moles)*27.0g/mol=0.0225 g

moles of Zn=moles of H2=0.00125 moles*65.4g/mol=0.0817g

%Al=(mass of Al/mass of alloy)*100=(0.0225/0.041)*100=54.9%

%Zn=(mass of Zn/mass of alloy)*100

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