Proficient:
1. Use the balanced equation below to answer the following questions:
$2 S + 3 O_{2} \to 2 {SO}_{3}$
How much $O_{2}$ you will need to use in order to make $27 g$ of ${SO}_{3}$ ?
a. Identify what you know and what you want to find:
b. Convert mass to moles

Answer

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Answer

${Step 2: Apply stoichiometry to calculate moles of O}_{2} : \frac{3 {mol O}_{2}}{2 {mol SO}_{3}} \cdot \frac{27}{80.0642} {mol SO}_{3} = \frac{81}{160.1284} {mol O}_{2}$

Steps

Step 1 ： $Given: Balanced equation: 2 S + 3 O_{2} \to 2 {SO}_{3}, and 27 g$ of ${SO}_{3}$

Step 2 ： ${Step 1: Convert mass of SO}_{3} to moles: \frac{27 g {SO}_{3}}{1 {mol SO}_{3} \cdot 80.0642 {g SO}_{3}} = \frac{27}{80.0642} {mol SO}_{3}$

Step 3 ： ${Step 2: Apply stoichiometry to calculate moles of O}_{2} : \frac{3 {mol O}_{2}}{2 {mol SO}_{3}} \cdot \frac{27}{80.0642} {mol SO}_{3} = \frac{81}{160.1284} {mol O}_{2}$

Proficient:1. Use the balanced equation below to answer the following questions:2 S+3O2→2SO3How much O2 you will need to use in order to make 27 g of SO3 ?a. Identify what you know and what you want to find:b. Convert mass to moles

Answer

Popular Problems

Proficient:
1. Use the balanced equation below to answer the following questions:
$2 S + 3 O_{2} \to 2 {SO}_{3}$
How much $O_{2}$ you will need to use in order to make $27 g$ of ${SO}_{3}$ ?
a. Identify what you know and what you want to find:
b. Convert mass to moles