a. Moles of oxygen that would react = 0.2625 mol
b. Moles of Cr2O3 that can be produced = 0.217 mol
or the following reaction: 4Cr(s) + 302(g) → 2Cr2O3(s) a. How many moles of oxygen (O2)...
a Consider the balanced chemical equation 4Cr(s) + 302(g) + 2Cr2O3(s) What mole ratio would you use to calculate how many moles of oxygen gas would be needed to react completely with a given number of moles of chromium metal? 4 mol O2 3 mol Cr 2 mol O2 3 mol Cr 3 mol O2 2 mol Cr 3 mol O2 4 mol Cr b Consider the balanced chemical equation 4Cr(s) + 302 (9) + 2Cr2O3(s) What mole ratio would...
Part C For the reaction 4Cr(s) + 302(g) + 2Cr2O3(s) calculate how many grams of the product form when 20.4 g of O2 completely reacts. Assume that there is more than enough of the other reactant. I ALQ R O ?
Calculate ΔS° for the reaction 4Cr(s) + 3O2(g) → 2Cr2O3(s) Substance: Cr(s) O2(g) Cr2O3(s) S°(J/K·mol): 24.56 206.14 82.0
Chromium reacts with oxygen to produce chromium oxide. 4Cr(s)+3O2(g)→2Cr2O3(s) Calculate the mass of Cr2O3 that can be produced if the reaction of 58.5 g of chromium and sufficient oxygen has a 78.0 % yield.
heet Pplete the following stoichiometry problems. Show ALL of your work to receive full credit. IOns and mole-to-mole relationships 4Cr(s)+302(g)2Cr Os(s) How many moles of oxygen (02) would react with 0.35 moles of chromium (Cr)? a. b. Starting with 10.4g of O2, how many moles of Cr Os can be produced: How many grams of Cr metal would be needed to produce 38.2g of chromium (III) oxide? c. Sulfuric acid (H2SO4) is a component of acid rain which forms when...
D. Complete the following stoichiometry problems. Show ALL of your work to receive full credit. Equations and mole-to-mole relationships 21. For the following reaction: 4Cr(s) + 302(g) → 2Cr2O3(s) a. How many moles of oxygen (O2) would react with 0.35 moles of chromium (Cr)? b. Starting with 10.4g of Oz, how many moles of Cr203 can be produced: c. How many grams of Cr metal would be needed to produce 38.2g of chromium (III) oxide? 22. Sulfuric acid (H2SO4) is...
For the reaction 4Cr(s)+3O2(g)→2Cr2O3(s) calculate how many grams of the product form when 15.4 g of O2 completely reacts. Assume that there is more than enough of the other reactant.
For the reaction 2S(s) +302(g) 2SO3(g), how many moles of SO; can be produced from 8.0 g O2 and excess S? .
2) 4NH3(g) + 302(g) + 6H2O(l) + 2N2(g) (a) 2 moles of NH, and 3 moles of Oz will produce ? moles Nz? (b) 5.0 g of NH, and 5.0 g of Oz will produce ? g of H2O? How many H2O molecules? 3) A mixture of 80.0 g of chromium (VI) oxide, Cr2Os, and 8.00 g of solid carbon, C, is used to produce elemental chromium, Cr, by the reaction below Cr2O3(aq) + 3C (s) → 2Cr (s) +...
The reaction of Cr2O3 with silicon metal
at high temperatures will make chromium metal.
2Cr2O3(s) + 3Si(s) 4Cr(l) + 3SiO2(s)
The reaction is begun with 188.00 g of Si and 110.00 g of
Cr2O3.
A) What is the limiting reactant?
B) How many grams of the excess reactant are left after the
reaction is complete?