Q. Calculate the amount injected in fmol units (you injected 2µL of sample) 1000fmol=1pmol Molar mass is 498.6 g/mol Con...
Q. Calculate the amount injected in fmol units (you injected 2µL of sample)
1000fmol=1pmol
Molar mass is 498.6 g/mol
Concentration is 25n/ml or 25pg/µL
PS. If there is something missing you need for calculation PLEASE ADVISE WHAT IN COMMENTS
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Q. Calculate the amount injected in fmol units (you injected 2µL of sample) 1000fmol=1pmol Molar mass is 498.6 g/mol Con...
Sugar is easily soluble in water and has a molar mass of 342.30 g/mol. What is...
Sugar is easily soluble in water and has a molar mass of 342.30 g/mol. What is the molar concentration of a 245.6 mL aqueous solution prepared with 78.3 g of sugar? Suppose you have 350.0 mL of a 0.450 M sodium hydroxide solution. How many moles of sodium hydroxide are in the solution? Calculate the percent by mass of a solution made from 17 g NaCl (the solute) and 67 g water. Suppose you need to prepare 141.5 mL of...
7. Calculate the maximum amount of hexaphenylbenzene (molar mass = 534.7 g/mol) possible (theoretical yield) when 1...
7. Calculate the maximum amount of hexaphenylbenzene (molar mass = 534.7 g/mol) possible (theoretical yield) when 125 mg of diphenylacetylene (molar mass - 178.2 g/mol) reacts with 125 mg of tetraphenylcyclopentadienone (molar mass 384.5 g/mol). Give your answer in units of milligrams (mg). The reaction is given below. 8. Calculate the percent yield when 75.0 g of diphenylacetylene (molar mass = 178.2 g/mol) reacts with 75.0 g of tetraphenylcyclopentadienone (molar mass = 384.5 g/mol) and produces 75.0 g of hexaphenylbenzene...
A 0.5137 g solid sample containing a mixture of LaCl, (molar mass = 245.26 g/mol) and...
A 0.5137 g solid sample containing a mixture of LaCl, (molar mass = 245.26 g/mol) and Ce(NO3), (molar mass = 326.13 g/mol) was dissolved in water. The solution was titrated with KIO, producing the precipitates La(IO,), and Ce(IO). For the complete titration of both La and Ce+, 42.25 mL of 0.1204 M KIO, was required. Calculate the mass fraction of La and Ce in the sample. mass fraction La: g La g sample mass fraction Ce: g Ce g sample
A 0.52900.5290 g solid sample containing a mixture of LaCl3LaCl3 (molar mass = 245.26 g/mol) and...
A 0.52900.5290 g solid sample containing a mixture of LaCl3LaCl3 (molar mass = 245.26 g/mol) and Ce(NO3)3Ce(NO3)3 (molar mass = 326.13 g/mol) was dissolved in water. The solution was titrated with KIO3KIO3, producing the precipitates La(IO3)3La(IO3)3 and Ce(IO3)3Ce(IO3)3. For the complete titration of both La3+La3+ and Ce3+Ce3+, 42.2742.27 mL of 0.12130.1213 M KIO3KIO3 was required. Calculate the mass fraction of LaLa and CeCe in the sample. mass fraction La:______ g LA/ g Sample mass fraction Ce:______ g Ce/ g Sample
Determine the amount of acid you need to weight, assuming that the molar mass is 150g/mol,...
Determine the amount of acid you need to weight, assuming that the molar mass is 150g/mol, its a monoprotic acid and 15 ml (0.100M) of the titration agent are needed to reach the end point. Remember significant figures and units.
A powder contains FeSO4⋅7H2O (molar mass=278.01 g/mol),(molar mass=278.01 g/mol), among other components. A 3.455 g sample...
A powder contains FeSO4⋅7H2O (molar mass=278.01 g/mol),(molar mass=278.01 g/mol), among other components. A 3.455 g sample of the powder was dissolved in HNO3 and heated to convert all iron to Fe3+. The addition of NH3 precipitated Fe2O3⋅?H2O, which was subsequently ignited to produce 0.502 g Fe2O3. What was the mass of FeSO4⋅7H2O in the 3.455 g sample? Please include every step.
Calculate the weight of Fe3O4 in 100.0g Fe2O3. Given: molar mass of Fe2O3 =159.69 g/mol Molar...
Calculate the weight of Fe3O4 in 100.0g Fe2O3. Given: molar mass of Fe2O3 =159.69 g/mol Molar mass of Fe3O4 = 231.54 g/mol Hint: you need two conversion factors
What would be for the mol reacted,, mol NH4X in sample, and yhr average molar mass?...
What would be for the mol reacted,, mol NH4X in sample, and yhr
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CALCULATIONS A. NaOH Preparation: Approximate molarity of NaOH 0.48 M B. NaOH Standardization: Trial # Mass of KHP E 1.7249 1.9569 1.8799 Volume of NaOH 18.58 L 20.58mLihat 19.71 mL Molarity of NaOH 0.4544 M 0.4654M 0. 3 M 0.4668M Average molarity of NaOH: 0.4668 M 0.4622 M C. Molar Mass of NH X Salt 1. Volume of NaOH 0.025 0.025 0.025L 2. Molarity...
molar mass of CoCl2: 6 H2O = 237.99 g/mol : 1 mole of Cola: 6H2O =...
molar mass of CoCl2: 6 H2O = 237.99 g/mol : 1 mole of Cola: 6H2O = 237.93 g : 0.160 g = (0.160*!) mole of CoCl2CH2O 237.93) = 0.000672 mole 0.672 momol coola Co2+ + aci . conc. of Co2+ = 0.642 mmol conc. of C1 = 2X0672. = 1.344 01001 We were unable to transcribe this imageDATA SHEET 11.1 Baron Bobinen Done 10/2419 Data Analysis and Calculations PART B Preparing the Solutions and Cuvettes Mass of Cocl, 64,0:0.160 Determine...
The molar mass of solid is 110.98 g/mol PART IV MOLAR MASS OF SOLID Mass of...
The molar mass of solid is 110.98 g/mol
PART IV MOLAR MASS OF SOLID Mass of Calorimeter (g) 10%1841 991565p S10005 Mass of Calorimeter plus water (g) Mass of water (g) Mass of unknown solid (g) alig'c 28.3 Initial temperature (°C) Final temperature (C) Temperature change (AT) Heat, q (kJ) Heat of solution per gram of solid (kJ/g) Heat of solution per mole of compound (kJ/mol) DATA ANALYSIS 1. Calculate q solution (Cs for water is 4.184 J/g°C) 2. Identify...
Sugar is easily soluble in water and has a molar mass of 342.30 g/mol. What is the molar concentration of a 245.6 mL aqueous solution prepared with 78.3 g of sugar? Suppose you have 350.0 mL of a 0.450 M sodium hydroxide solution. How many moles of sodium hydroxide are in the solution? Calculate the percent by mass of a solution made from 17 g NaCl (the solute) and 67 g water. Suppose you need to prepare 141.5 mL of...
7. Calculate the maximum amount of hexaphenylbenzene (molar mass = 534.7 g/mol) possible (theoretical yield) when 125 mg of diphenylacetylene (molar mass - 178.2 g/mol) reacts with 125 mg of tetraphenylcyclopentadienone (molar mass 384.5 g/mol). Give your answer in units of milligrams (mg). The reaction is given below. 8. Calculate the percent yield when 75.0 g of diphenylacetylene (molar mass = 178.2 g/mol) reacts with 75.0 g of tetraphenylcyclopentadienone (molar mass = 384.5 g/mol) and produces 75.0 g of hexaphenylbenzene...
A 0.5137 g solid sample containing a mixture of LaCl, (molar mass = 245.26 g/mol) and Ce(NO3), (molar mass = 326.13 g/mol) was dissolved in water. The solution was titrated with KIO, producing the precipitates La(IO,), and Ce(IO). For the complete titration of both La and Ce+, 42.25 mL of 0.1204 M KIO, was required. Calculate the mass fraction of La and Ce in the sample. mass fraction La: g La g sample mass fraction Ce: g Ce g sample
What would be for the mol reacted,, mol NH4X in sample, and yhr
average molar mass?
CALCULATIONS A. NaOH Preparation: Approximate molarity of NaOH 0.48 M B. NaOH Standardization: Trial # Mass of KHP E 1.7249 1.9569 1.8799 Volume of NaOH 18.58 L 20.58mLihat 19.71 mL Molarity of NaOH 0.4544 M 0.4654M 0. 3 M 0.4668M Average molarity of NaOH: 0.4668 M 0.4622 M C. Molar Mass of NH X Salt 1. Volume of NaOH 0.025 0.025 0.025L 2. Molarity...
molar mass of CoCl2: 6 H2O = 237.99 g/mol : 1 mole of Cola: 6H2O = 237.93 g : 0.160 g = (0.160*!) mole of CoCl2CH2O 237.93) = 0.000672 mole 0.672 momol coola Co2+ + aci . conc. of Co2+ = 0.642 mmol conc. of C1 = 2X0672. = 1.344 01001 We were unable to transcribe this imageDATA SHEET 11.1 Baron Bobinen Done 10/2419 Data Analysis and Calculations PART B Preparing the Solutions and Cuvettes Mass of Cocl, 64,0:0.160 Determine...
The molar mass of solid is 110.98 g/mol
PART IV MOLAR MASS OF SOLID Mass of Calorimeter (g) 10%1841 991565p S10005 Mass of Calorimeter plus water (g) Mass of water (g) Mass of unknown solid (g) alig'c 28.3 Initial temperature (°C) Final temperature (C) Temperature change (AT) Heat, q (kJ) Heat of solution per gram of solid (kJ/g) Heat of solution per mole of compound (kJ/mol) DATA ANALYSIS 1. Calculate q solution (Cs for water is 4.184 J/g°C) 2. Identify...
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