Question: i just need help with numbers 3-5 under calculations B. Determine the Formula of an Unknown Hydrate Unknown sample number: Molecular formula of the unknown:

i just need help with numbers 3-5 under calculations

unknown: 1. Mass of crucible + unknown hydrate 2. Mass of crucible

B. Determine the Formula of an Unknown Hydrate Unknown sample number: Molecular formula of the unknown: 1. Mass of crucible + unknown hydrate 2. Mass of crucible 3. Mass of unknown hydrate( 12) 4. Mass of crucible + anhydrous salt a. after first heating b. after second heating 41.640 41642 5. Mass of unknown anhydrous salt (4b2) 0.018 6. Mass of water lost (14b) 47 1. Calculate the formula mass/molar mass of the anhydrous salt of your unknown sample (show calculations). 2. Calculate the number of moles of the anhydrous salt (show calculations). 3. Calculate the number of moles of water in the unknown hydrate (molars mass of H2O= 18.02 ghmol). Show calculations. 4. Determine X : show calculation step X= 5. Molecular formula of your unknown hydrate: ulations: Calculate the formula mass/molar mass of the anhydrous salt of your unknown sample (mass of avtables) =41.642+40.695=0.947g n74.5513g/mol=(0.947g)/(0.947moles)=74.5513 2. Calculate the number of moles of the anhydrous salt (show calculations). glmol 41.64240.695=0.947g 3. Calculate the number of moles of water in the unknown hydrate (molars mass of H2O= 18.02g/mol). Show calculations. 4. Determine X : show calculation step X= 5. Molecular formula of your unknown hydrate

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