A 0.3054 gram sample of the mineral chalcopyrite (CuFeS2) yielded 0.6525 gram BaSO4 precipitate. What is...
A 0.3054 gram sample of the mineral chalcopyrite (CuFeS2) yielded 0.6525 gram BaSO4 precipitate. What is the % S in the mineral sample? What is the % CuFeS2 in the sample? (MM CuFeS2 = 183.52 g/mol; MM BaSO4 = 233.39 g/mol)
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A 0.3054 gram sample of the mineral chalcopyrite (CuFeS2)
yielded 0.6525 gram BaSO4 precipitate. What is...
1. Chalcopyrite(CuFeS2) is an abundant copper mineral that can be converted to elemental copper. How much...
1. Chalcopyrite(CuFeS2) is an abundant copper mineral that can be converted to elemental copper. How much Cu is there in 1.00 kg CuFeS2? 2. Combustion analysis of an unknown compound indicated that it is 92.23% C and 7.82% H. The mass spectrum indicated the molar mass is 78g/mol. What is the molecular formula of this unknown compound? 3. Ascorbic acid also known as Vitamin C, is an organic compound containing C,H, and O. The combustion of a 28.1 g sample...
Chalcopyrite (CuFeS2) is an abundant copper mineral that can be converted into elemental copper through the...
Chalcopyrite (CuFeS2) is an abundant copper mineral that can be converted into elemental copper through the four step process below. Part 1 Calculate the mass of Cu in g from 8.40 kg CuFeS2. ________g Part 2 Calculate the mass of CuFeS2 needed in g to produce 300.0 g Cu if the yield for the conversion process is 82%. _________g
Chalocopyrite (CuFeS2) is an abundant copper mineral that can be converted into elemental copper. What is...
Chalocopyrite (CuFeS2) is an abundant copper mineral that can be converted into elemental copper. What is the percentage composition of CuFeS2? How many grams of iodine are in 45.325 g of calcium iodate, Ca(IO3)2.
Consider a 2.0000 g sample containing MgSO4 (FW 120.366). The sample is dissolved and the sulfate...
Consider a 2.0000 g sample containing MgSO4 (FW 120.366). The sample is dissolved and the sulfate is precipitated as BaSO4 (FW 233.39). If the BaSO4 precipitate weighs 1.4900 g, what is the mass % of MgSO4 in the sample?
4) Analysis of a sample of nitroglycerine yielded 0.6053 g of carbon, 0.0841 g of hydro...
4) Analysis of a sample of nitroglycerine yielded 0.6053 g of carbon, 0.0841 g of hydro 0.7061 8 of nitrogen and 2.4210 g of oxygen. The empirical formula of nitroglyce Solution: 5) People with severe contact dermatitis may have some concern over the nickercom stainless steel utensils. Suppose you knew that the % Ni in a steel sample was approximately 10.00%. If you wanted to ensure that you produced 5.00 gram precipitate, how many grams of steel would you suggest...
A 45.5 gram sample of a mineral is placed in boiling water until its temperature is...
A 45.5 gram sample of a mineral is placed in boiling water until its temperature is 100 degrees C. It is then placed in 255 grams of H20 with a temperature of 22.5 degrees C. The final temperature of the system settles at 32.4 degrees C. What is the specific heat of the mineral?
10.1 Precipitation of Barium Sulfate-Pre-Lab Questions Name Date: Instructor 1. Calculate the formula weight of BaSO4.(Enter...
10.1 Precipitation of Barium Sulfate-Pre-Lab Questions Name Date: Instructor 1. Calculate the formula weight of BaSO4.(Enter unit as g/mol.) 2 What mass of BasO4 is presont in 40.0 mL of a 0.65 M solution? 3. What is the formula weight of Na SO? (Enter unit as g/mol.) 4. What mass of Na SO4 is present in 100.0 mL of a 0.35 M solution? 5. What is the formula weight of BaC2? (Enter unit as g/mol.) 6. You mix 6.0 mL...
A 6.789 gram sample of a hydrocarbon, upon combustion in a combustion analysis apparatus, yielded 9.883...
A 6.789 gram sample of a hydrocarbon, upon combustion in a combustion analysis apparatus, yielded 9.883 grams of carbon dioxide. The percent, by weight, of carbon in the hydrocarbon is therefore: 34.44% 18.75% 45.57% 68.69% O39.73%
please help!!!! A 272.3 gram sample of an unknown substance (MM = 189.50 g/mol) is cooled...
please help!!!!
A 272.3 gram sample of an unknown substance (MM = 189.50 g/mol) is cooled from 233.0 °C to 147.6 °C. (heat capacity of liquid = 1.62 J/g. °C; heat capacity of gas = 1.04 J/g. °C; AHvap = 78.11 kJ/mol; Tb = 160.3 °C) How much energy (in kJ) is absorbed/released to cool the gas? pple A 272.3 gram sample of an unknown substance (MM = 189.50 g/mol) is cooled from 233.0 °C to 147.6 °C. (heat capacity...
A 1.546g sample containing a mixture of only k2So4 and kno3 was dissolved in water an...
A 1.546g sample containing a mixture of only k2So4 and kno3 was dissolved in water an treated with BaCl2, precipitating the So42- as Baso4(pksp=9.96) the resulting precipitate was isolated and yielded 863.5mg of baso4. What is % in mass of K2So4 and Kno3
4) Analysis of a sample of nitroglycerine yielded 0.6053 g of carbon, 0.0841 g of hydro 0.7061 8 of nitrogen and 2.4210 g of oxygen. The empirical formula of nitroglyce Solution: 5) People with severe contact dermatitis may have some concern over the nickercom stainless steel utensils. Suppose you knew that the % Ni in a steel sample was approximately 10.00%. If you wanted to ensure that you produced 5.00 gram precipitate, how many grams of steel would you suggest...
10.1 Precipitation of Barium Sulfate-Pre-Lab Questions Name Date: Instructor 1. Calculate the formula weight of BaSO4.(Enter unit as g/mol.) 2 What mass of BasO4 is presont in 40.0 mL of a 0.65 M solution? 3. What is the formula weight of Na SO? (Enter unit as g/mol.) 4. What mass of Na SO4 is present in 100.0 mL of a 0.35 M solution? 5. What is the formula weight of BaC2? (Enter unit as g/mol.) 6. You mix 6.0 mL...
A 6.789 gram sample of a hydrocarbon, upon combustion in a combustion analysis apparatus, yielded 9.883 grams of carbon dioxide. The percent, by weight, of carbon in the hydrocarbon is therefore: 34.44% 18.75% 45.57% 68.69% O39.73%
please help!!!!
A 272.3 gram sample of an unknown substance (MM = 189.50 g/mol) is cooled from 233.0 °C to 147.6 °C. (heat capacity of liquid = 1.62 J/g. °C; heat capacity of gas = 1.04 J/g. °C; AHvap = 78.11 kJ/mol; Tb = 160.3 °C) How much energy (in kJ) is absorbed/released to cool the gas? pple A 272.3 gram sample of an unknown substance (MM = 189.50 g/mol) is cooled from 233.0 °C to 147.6 °C. (heat capacity...
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