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What atoms are proteins and fats made up of? How many moles of hydrogen will be produced from 17.3 g of aluminum in 2Al+3H2SO4=3H2+Al2(SO4)3? With a mean of 1252 and a standard deviation of 129 what percentile is 1000 in? A math 20 class has 36 students enrolled. If 8/9 of the students are present in class, how many are absent? 1.4 eV electron has a 10-4 probability of tunneling through a 2.5 eV barrier.What is the prob a 1.4 eV proton going through the same barrier?