Hello!
The answer is: 500g
Why?
We are asked to find the theoretical yield of a reaction, and we are given the following information:
![ActualYield=50g\\PercentYield=10(Percent)](https://img.qammunity.org/2020/formulas/chemistry/middle-school/issxgcpichgk6d538cnav3b2knbfq6kd9z.png)
In order to find the the theoretical yield we must use the following formula:
![PercentYield=(ActualYield)/(TheoreticalYield)*100(Percent)](https://img.qammunity.org/2020/formulas/chemistry/middle-school/tekghso4tdavti2ca0v377i0o2u6txjqwd.png)
We have to convert the percents to real numbers before the calculations. We can do it dividing the percent value into 100, so:
![10(Percent)=(10)/(100)=0.1](https://img.qammunity.org/2020/formulas/chemistry/middle-school/dxn191lgy75lojcdimcxnozk7t2su72qpn.png)
![100(Percent)=(100)/(100)=1](https://img.qammunity.org/2020/formulas/chemistry/middle-school/satf21cwdtai6f6gpoaans7cjkjwipyoor.png)
Therefore,
![TheoreticalYield=(ActualYield)/(PercentYield)\\\\TheoreticalYield=(50g)/(0.1)=500g](https://img.qammunity.org/2020/formulas/chemistry/middle-school/og8zocecwdflte9v5fsehl9euwts90vpj8.png)
Have a nice day!