What is the gram formula mass of caso4.2h2o?

So your practically trying to finding the molar mass of CaSO₄.2H₂O and that is found by adding all the molar masses of the individual elements:So Ca = 40 g/mol      S  = 32 g/mol      O = 16 /mol      H = 1 g/molmolar mass of CaSO₄.2H₂O = [(40) + (32) + (16 × 4) + (2 × 1 × 2) + (2 × 16)]                                              = 172 g/mol... Show More

Answer : The gram formula mass of is, 172 g/moleExplanation : As we know that,Molar mass of calcium (Ca) = 40 g/moleMolar mass of sulfur (S) = 32 g/moleMolar mass of oxygen (O) = 16 g/moleMolar mass of hydrogen (H) = 1 g/mole Now we have to calculate the gram formula mass of In , there are 1 calcium atom, 1 sulfur atom, 6 oxygen atom and 4 hydrogen atom.The gram formula mass of = Therefore, the gram formula mass of is, 172 g/mole... Show More

a. The gram formula mass of CaSO4.2H2O equals 172 grams/moleb. The percentage by mass of H2O in CaSO4.2H2O is 20.9%c. The molecular formula for naphthalene is C10H8d. The total number of moles in 80.0grams of C2H5Cl is 1.24 molese. 4.76moles of Na3PO4 contains 780.64 grams of Na3PO4Explanation:RMM = Relative Molecular Mass a. To calculate the gram formula mass of CaSO4.2H2O, you would have to add the atomic mass of the individual elements that make up to compound. Here are the atomic masses of individual elements present in gypsum; Ca=40, S=32, O=16, H=1.CaSO4.2H2O = 40+32+(16x4)+2((1x2)+16) = 172 grams/moleb. % by mass of H2O in gypsum = (RMM of 2H2O/RMM of gypsum) x 100    RMM of 2H2O = 2((1x2)+16)=36 gram/mole    RMM of CaSO4.2H2O (gypsum) = 172 grams/mole    % by mass of H2O in gypsum = (36/172) x 100 = 20.9% of H2Oc. The empirical formula of a compound only shows the simplest ratio of atoms in a particular compound not the actual number of atoms. The actual number of atoms in a compound is shown in its molecular formula, which can be used to calculate the RMM of the compound. A specific number (n) multiplied by the number of atoms in an empirical formula gives the molecular formula. (C=12, H=1)(Empirical formula)n = Molecular formula(Total sum of atomic masses of elements in empirical formula)n = Total sum of atomic masses of elements in molecular formulaRMM of naphthalene = 128 grams/mole((12x5)+(1x4))n = 64n 64n = 128 n = 128/64 = 2Therefore, (C5H4)2 = C(5x2)H(4x2) = C10H8 d. Number of moles of C2H5Cl = mass of C2H5Cl/RMM of C2H5Cl    Say number of moles of C2H5Cl = y    Mass of C2H5Cl = 80.0 grams    RMM or gram-formula mass of C2H5Cl = 64.5 grams/mole    y = 80.0/64.5 = 1.24 moles  e. Number of moles of Na3PO4 = mass of Na3PO4/RMM of Na3PO4      Number of moles of Na3PO4 = 4.76 moles    gram-formula mass of Na3PO4 = 164 grams/mole    mass of Na3PO4 = x    4.76 = x/164    x = 4.76 x 164 = 780.64 grams... Show More

The answer to your question is 172 g/molExplanation:Data                              CaSO₄ 2H₂O Gram formula mass = ?Process1.- Determine the number of elements in the compound     Calcium        1     Sulfur            1     Hydrogen          4     Oxygen              62.- Multiply the number of atoms by their atomic weight     Calcium        1  x 40 = 40     Sulfur            1 x 32 = 32     Hydrogen          4 x 1 = 4     Oxygen              6 x 16 = 963.- Add the result     Gram formula mass = 40 + 32 + 4 + 96                                       = 172 g/mol... Show More

Your answer would be 172.1703 g/ml... Show More