For the reaction 2 H2(g) + O2(g) → 2 H2O(g), how many liters of water can be made from 5.0 L of oxygen gas and an excess of hydrogen?
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mobeteOctober 23, 20213 Comments
Calculate the molarity of a solution that contains 724.8 g CuSO4 in 332.6 mLwater. (The molar mass of CuSO4 is 159.60 g/mol.)
Ant5784tgiOctober 23, 20214 Comments
I need the answer asap
mobeteOctober 23, 202112 Comments
1. a metal with 3 valence electrons, used in cans.2. a period 3 element that will not react naturally.3. has 5 valence
PoolwaterisgrossOctober 23, 20213 Comments
At what temperature in K would CO2 gas have to be if 1.5 mol occupies a 5Lcontainer at 777 kPa?
Montgomerykarloxc24xOctober 23, 20216 Comments
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5L O2 x 1 mol O2/ 22.4L O2 x 2 mol H20/ 1 mol O2 x 22.4L H20/ 1 mol H20 = 10 L H2O
For future reference though, since its at STP that means that the coefficient are in proportion. Since oxygen has a coefficient of 1 and water has a coefficient of 2 for every 1 liter of oxygen there is 2 liters of water. Hence you started with 5 liters and ended with 10
2fe + 3h2so4 -> fe2(so4)3 + 3h2
it is necessary to balance equations in order to get the proper amount of reactants as well as products in order not to make a miscalculation.
you cannot change the subscripts as that would change the substance itself. for instance, diatomic elements such as h2 only have the subscript two when a gas. another example would be so4, if you were to change the subscript, the element would no longer be sulfate.
we change the coefficients instead as that only changes the number of molecules rather than the substance itself.
hope this !
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