Mixture was found to contain 1.05g of SiO2 0.69g of cellulose 1.82g of calcium carbonate. Calculate the percentage of calcium carbonate in the mixture x. Note round your answer to 2 significant figure?

To calculate the percentage of calcium carbonate in the mixture, first find the total mass of the mixture by summing the individual masses given (1.05g + 0.69g + 1.82g = 3.56g). Then, calculate the percentage of calcium carbonate by dividing the mass of calcium carbonate by the total mass and multiplying by 100 (1.82g / 3.56g * 100 ≈ 51%). So, the percentage of calcium carbonate in the mixture is approximately 51%.