27/2017 11:55 PM 11.3/100 1/24/2017 09:56 PM Grade te Print calculator Periodic

Question

27/2017 11:55 PM 11.3/100 1/24/2017 09:56 PM Grade te Print calculator Periodic Table uestion 3 of 16 incorrect Sapling Learning Map Gaseous hydrogen and oxygen can be prepared in the laboratory fromthe decomposition of gaseous water. The equation for the reaction is Calculate how many grams of Oz(g) can be produced from 42.5 grams of H20(g) Number Incorrect. moles using the molarmass of Hao Then use the balanced 2 start by converting the mass of Hao to Notice every chemical equation to set up a conversion facorto convert from moles Holo moles oa oh using the mol of Hizo decomposed, 1 mol of o produced. Lasty convert tom moles oa to grams imolar mass of oxygen ga

Explanation / Answer

m = 42.5 g of H2O

so

MW of H2O = 18 g /mol

then

mol = mass/MW = 42.5/18 = 2.3611 mol of H2O

so...

ratio is

2 mol of H2O = 1 mol of O2

then

2.3611mol of H2O = 1/2*x mol of O2

x = 2.3611/2 = 1.18055 mol of O2

so

MW of O2 = 32 g/mol

1.18055 mol --> 32*1.18055 = 37.7776 g of O2 produced

Related Questions

Navigate

• Browse (All)
• Browse 2
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.