I need help with problems 4-8 6.PrelabWater ofHydrationANURAAG CHIRALANameTrmeM TW RFA student is given a sample of red cobalt sulfate hydrate. She weighed the sample in a dry coveredcrucible and obtained a mass of 25.050 g for the crucible, cover, and sample. Before adding thesample, the crucible and cover weighed 23.422 g. She then heated the crucible to drive off thewater of hydration, keeping the crucible at red heat for about 10 minutes wirh the cover slightlyajar. She then let the crucible cool, and found it had a lower mass; the crucible, cover and contentsthen weighed 24.321 g. In the process the sample was converted to blue anhydrous CoSO,. Showall calculations necessary to answer the following questions.1. What was the mass of the hydrate sample?1.628 ghydrateMas if hydrate somphle= Mass of eucible + coven + sambleI- Mass of vrucible + cover23.4229 =1-6289%3D2. What is the mass of the anhydrous COSO?0.899 COSO,Mars of anhydrous Coso,Mans of erucible + cover + sample D – Mass of vuuible + cover0-89990.729 g H,O3. How much water was driven off?Mass ofvucible +sample I - Mass ofvuaible ++ cover t sample I25050g - 24.3219= 0:1299%3D611/2d2esso5c ooplaceer.17883.er IWater of Hydration4. What is the percentage of water in the hydrate?mass of water in sampleX 10044.8 % H,O% water =mass of hydrate sample% water = 0x 100 = 0.729 × 100Mas of water in sample = 0.7299Hars of hydrate sample = 1-62891-628(2) +5. How many grams of water would there be in 100.0 g of hydrate? How many moles?44.8gHO;moles H.OIn 10og of hydrate, amountwaterof= Mast of water x100 = 0:129 X 100 = 44-891.6286. How many grams of Cos, are there in 100.0 g of hydrate? How many moles? What percentage of the hydrate is CoSO? Convert the mass of COSO, to moles. The molar mass ofCOSO, is 154.996 g.g CoSO,;many moles of water are present per mole of CoSO ?moles H,O/moles COSO,Coso, 7H,08. What is the formula of the hydrate?162ON OGd2e3905cnei816xplaceoe7883.

The mass of water in a sample is 0.729 g. The mass of hydrate sample is 1.628 g.

4. What is the percentage of water in the hydrate? mass of water in sample X 100 44.8% H,0 % water = mass of hydrate sample Mas of water in sample = 0-7299 % water = 0 x 100 =0:729 × 100 %3D → Mars of hydrate sample = 1-6289 1-628 44.8% f 5. How many grams of water would there be in 100.0 g of hydrate? How many moles? moles H.O 44.8 sHO; In 10og of hydrate, amount of water = Mast f waten x100=0:729 X 100 = 44-89 1-628 6. How many grams of Cos5, are there in 100.0g of hydrate? How many moles? What per- centage of the hydrate is CoSO? Convert the mass of COSO, to moles. The molar mass of COSO, is 154.996 g. g COSO,; % COSO, in hydrate 7. How many moles of water are present per mole of CoSO? moles H,O/moles COSO, CoSO, 7H2O 8. What is the formula of the hydrate? Be1816xplacenolde7883.e ON OO