Discover how IDNLearn.com can help you find the answers you need quickly and easily. Our platform is designed to provide quick and accurate answers to any questions you may have.
Sagot :
Answer:
Explanation:
To find the percentage of barium in the compound, we can follow these steps:
Calculate moles of BaSO4 formed:
From the given data, 0.1060 g of BaSO4 was formed.
Molar mass of BaSO4=137.33 g/mol (Ba)+32.06 g/mol (S)+4×16.00 g/mol (O)=233.39 g/mol
Molar mass of BaSO4=137.33g/mol (Ba)+32.06g/mol (S)+4×16.00g/mol (O)=233.39g/mol
Number of moles of BaSO4 formed:
moles of BaSO4=0.1060 g233.39 g/mol=0.000454 mol
moles of BaSO4=233.39g/mol0.1060g=0.000454mol
Determine moles of Ba in BaSO4:
According to the balanced chemical equation for the reaction:
Ba2++SO42−→BaSO4
Ba2++SO42−→BaSO4
1 mole of BaSO4 contains 1 mole of Ba.
moles of Ba=0.000454 mol
moles of Ba=0.000454mol
Calculate the mass of Ba in the sample:
Now, we find the mass of Ba in the sample that produced BaSO4:
mass of Ba=moles of Ba×molar mass of Ba=0.000454 mol×137.33 g/mol=0.0623 g
mass of Ba=moles of Ba×molar mass of Ba=0.000454mol×137.33g/mol=0.0623g
Calculate the percentage of Ba in the compound:
Finally, the percentage of Ba in the compound is:
Percentage of Ba=(mass of Bamass of sample)×100%mass of sample=0.2680 g(given)Percentage of Ba=(0.0623 g0.2680 g)×100%=23.25%
Percentage of Ba=(mass of samplemass of Ba)×100%mass of sample=0.2680g(given)Percentage of Ba=(0.2680g0.0623g)×100%=23.25%
Therefore, the percentage of barium in the compound is ( \boxed{
Thank you for using this platform to share and learn. Don't hesitate to keep asking and answering. We value every contribution you make. Thank you for visiting IDNLearn.com. For reliable answers to all your questions, please visit us again soon.
