Reading : NASA says 170,300 g of Oxygen (O2) per person is needed for a 6-month mission. Space X, a private company that partners with NASA claims the law does not apply in space and that only 127,500 grams of water are needed. How many grams of water (H2O) is needed to meet the Oxygen demands? Stoichiometry //Is NASA’s calculation of 151,200 grams of water going to produce enough oxygen through electrolysis for 6 months or is Space X’s claim and calculation of 127,500g accurate?

1.consider the following balanced equation and answer parts a through. show calculations for each part.  

3 ag(s) + 4 hno3(aq) → 3 agno3(aq) + no(g) + 2 h2o(l)  

a. calculate the number of moles of agno3 produced by the reaction of 3 moles of ag with excess hno3. if the number to the left of the compound represents the number of moles of the compound which are present, then 3 moles of ag react with 4 moles hno3 to produce 3 moles agno3 (aq).

so the answer to a would be 3 moles.

b. calculate the number of moles of agno3 produced by the reaction of 108 grams of ag with excess hno3.  

i'm not sure how to plug in the grams of silver into an equation using moles to find how many moles are produced.

c. calculate the number of grams of agno3 produced by the reaction of 108 grams of ag with excess hno3  

d. calculate the number of moles of no produced as a byproduct of the reaction of 108 grams of ag with excess hno3.  

e. calculate the number of grams of no produced as a byproduct starting with 108 grams of ag and excess hno3.  

explanation:

nuclear fission produces elements that are heavier than helium.

the elements that are used in nuclear fission and their products are much heavier than helium.

5.6⋅10−^19  j

do you need the explaination?