Please help me with this questions A 13.3 g sample of CaSO4 is found to contain 3.92 g of Ca and 6.25 g of O. Find the mass of sulfur in a sample of CaSO4 witha mass of 89.1 g.mass of sulfur =de Select all the true statements.The Cl and Br ions have the same number of electrons.The K ion is formed when a potassium atom loses one electron.When an atom gains an electron, it becomes a cation.The Fe2+ and Fe³+ ions have the same number of protons.The Cut and Cu2+ ions have the same number of electrons.Anions carry a positive charge.Incorrect

Please note- As per our company guidelines we are supposed to answer only one question. Kindly repost the second question in the next question.In the calcium sulfate, the ratio of the mass of all the elements will remain the same and it will not change by changing the amount of the sample.Let's first of all, calculate the mass of sulfur in the 13.3 g of sample: mass of sulfur = total mass - mass of calcium + mass of oxygenmass of sulfur = 13.3 g - 3.92 g + 6.25 gmass of sulfur = 13.3 g - 10.17 gmass of sulfur = 3.13 gAccording to the law of fixed ratio of the mass of elements, the mass of sulfur in the second sample is calculated as follows: mass of sulfur in 13.3 g of CaSO4 sample is = 3.13 gmass of sulfur in 1 g of CaSO4 sample is = 3.1313.3 gmass of sulfur in 89.1 g of CaSO4 sample is = 3.13×89.113.3 gmass of sulfur in 89.1 g of CaSO4 sample is = 20.9686 gmass of sulfur in 89.1 g of CaSO4 sample is = 21.0 g Note: The final answer is rounded off to three significant figures.The mass of sulfur in 89.1 g of the sample is = 21.0 g