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(27.98 moles / 1.57 moles) - 17.598
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- Consider a blend of mass 5g formed from 2.2 g of C12H24 and 2.8g of C998H1000 paraffin's:, What are Mn and Mw of the blend?What is the gravimetric factor when the desired substance is Cr2O3 and the weighed substance is PbCrO4? 1 mole Cr2O3 is to 3 moles PbCrO4 1 mole Cr2O3 is to 2 moles PbCrO4 2 moles Cr2O3 is to 1 mole PbCrO4 2 moles Cr2O3 is to 2 moles PbCrO4The manufacture of aluminum includes the production of cryolite (Na3AlF6) from the following reaction: 6〖HF〗_((g))+3〖NaAlO〗_(2(s))→ 〖Na〗_3 〖AlF〗_(6(s))+3H_2 O_((l))+ 〖Al〗_2 O_(3(s)) How much HF (hydrogen sulfide) is required to produce 2.50kg of Na3AlF6? How many cm3 of HF(g) are needed to produce 26.0g of Na3AlF6? The density of HF (g) at 25is 1.15g/L.
- For the following table fill in the missing values and calculate the theoretical yield. A + 2B à C moles 0.00242 0.00242 ?_________ MW ?_________ 98.06 164.16 g ?_________ ?__0.00002467_______ ?_________ mL 0.20 d(g/mL) 0.80Determination of the Amount of water, mass of crucible + dehydrated Sample is 16.2265g, mass of dehydrated Sample is 1.3031g, mass of water is 0.3587g, calculate moles of water.2N2(g) + 3O2(g) ® 2N2O3(g) DH°rxn = +86.6 kJ 1. When 12.0 moles of N2 react, the reaction heat is ____________ kJ 2. To make +552 kJ of reaction heat, _________ moles of O2 must react. 3. To make +24 kJ of reaction heat, a count of ________________ N2O3 molecules must form.