Calculate the mass of oestrogen (molecular mass 270 g/mol) required to make 150 mL of a...
Calculate the mass of oestrogen (molecular mass 270 g/mol) required to make 150 mL of a 5.5 mM solution. Select the appropriate units.
HINT: First calculate amount (moles) based on the formula amount = c × V (you may have learned this formula as n = c × V; A = C × V)
then convert moles to grams using g = mol x molecular mass
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Calculate the mass of oestrogen (molecular mass 270 g/mol)
required to make 150 mL of a...
What mass of KX (Mm= 150 g/mol) is required to prepare 331 mL of a pH...
What mass of KX (Mm= 150 g/mol) is required to prepare 331 mL of a pH = 12.68 solution? The pKa of HX is 11.75 g KX
a) How many mol of Al2(SO4)3 are required to make 40 mL of a 0.050 M Al2(SO4)3...
a) How many mol of Al2(SO4)3 are required to make 40 mL of a 0.050 M Al2(SO4)3 solution? (Hint, molarity is moles per liter. You know the molarity. You are given the number of mL's, which can be converted to liters. Just set it up so the units cancel and you get "moles".) moles Al2(SO4)3 b) What is the molecular weight of Al2(SO4)3, to the nearest gram? c) What mass of Al2(SO4)3 is required to make 40 mL of a 0.050 M...
0.150 g benzophenone 0.100 g NaBH4 eagaph Show the theoretical result of the reactants and the product + Na,BO (CHszCHOH 1) For A al Calculate the formule molecular b) Molar mass i/mel ci Amo...
0.150 g benzophenone
0.100 g NaBH4
eagaph Show the theoretical result of the reactants and the product + Na,BO (CHszCHOH 1) For A al Calculate the formule molecular b) Molar mass i/mel ci Amount a Moles e) m 21 Fors a) Calculate the formuke mokcular bl Molar mass (mo c) Amount d] Moles 4) Calculate the formuk mobcua B) Molar mass (gimol co Amoune ig DI Moles El m A) Calculate the formde motecula B) Molar mass ie/mal Q Amount...
a) How many moles of Al2(SO4)3 are required to make 55 mL of a 0.050 M...
a) How many moles of Al2(SO4)3 are required to make 55 mL of a 0.050 M Al2(SO4)3 solution? (Hint, molarity is moles per liter. You know the molarity. You are given the number of mL's, which can be converted to liters. Just set it up so the units cancel and you get "moles".) moles Al2(SO4)3 b) What is the molecular weight of Al2(SO4)3, to the nearest gram? grams c) What mass of Al2(SO4)3 is required to make 55 mL of...
a) How many moles of Al2(SO4)3 are required to make 43 mL of a 0.060 M...
a) How many moles of Al2(SO4)3 are required to make 43 mL of a 0.060 M Al2(So4)3 solution? (Hint, molarity is moles per liter. You know the molarity. You are given the number of mL's, which can be converted to liters. Just set it up so the units cancel and you get "moles".) moles Al2(SO4)3 b) What is the molecular weight of Al2(S04)3, to the nearest gram? grams c) What mass of Al2(SO4)3 is required to make 43 mL of...
Molecular formula Molecular formula From the formula mass of the empirical formula on the previous page,...
Molecular formula
Molecular formula From the formula mass of the empirical formula on the previous page, and the molar mass of the hydrocarbon above, calculate the molecular formula of your hydrocarbon. What is the molecular formula of your hydrocarbon? Show calculation. PBL Report Members Empirical formula 42 477 From the data in page 1 calculate g of co, and g H,O Show calculations and include units ns0a634g 79 Mass of H2O 69.577-68.912 Convert the g of CO2 and g H20,...
The molecular weight of butane is 58.14 g/mol. Based on the number of grams of gas...
The molecular weight of butane is 58.14 g/mol. Based on the number of grams of gas measured, how many moles is this? (moles = mass / molecular weight) Choose the closest answer. A. 5.5 * 10^-1 moles 0.361g B. 8.1 * 10^-4 moles C. 6.2 * 10^-3 moles D. 9.4 * 10^-2 moles
Calculate the mass of p-dichlorobenzene (mm=147.00 g/mol) that when dissolved in 125 ml cyclohexane (d=0.779 g/mol,...
Calculate the mass of p-dichlorobenzene (mm=147.00 g/mol) that when dissolved in 125 ml cyclohexane (d=0.779 g/mol, mm=84.16 g/mol) creates a solution with a boiling point of 81 degrees celcius. the kf of cyclohexane is 2.75 c/mol.
Calculate the number of grams of solid Tris-base (121.1 g/mol) required to prepare 250.0 mL of...
Calculate the number of grams of solid Tris-base (121.1 g/mol) required to prepare 250.0 mL of a 50.0 mM solution. Calculate the number of milliliters of 5 M NaCl required to prepare 875.0 mL of a 25 mM NaCl solution.
Ksp for Ag2CO3 (molar mass = 276 g/mol) is 3.50x10-6. Into a 100.00 mL saturated Ag2CO3...
Ksp for Ag2CO3 (molar mass = 276 g/mol) is 3.50x10-6. Into a 100.00 mL saturated Ag2CO3 solution, 0.0200 mol of Na2CO3 solid is added. How many grams (3 sig fig) of solid will precipitate? (hint: find how many moles of Ag2CO3 is dissolved in pure water, and how many moles is dissolved in Na2CO3 solution. The difference is how many moles will precipitate out from solution.)
0.150 g benzophenone
0.100 g NaBH4
eagaph Show the theoretical result of the reactants and the product + Na,BO (CHszCHOH 1) For A al Calculate the formule molecular b) Molar mass i/mel ci Amount a Moles e) m 21 Fors a) Calculate the formuke mokcular bl Molar mass (mo c) Amount d] Moles 4) Calculate the formuk mobcua B) Molar mass (gimol co Amoune ig DI Moles El m A) Calculate the formde motecula B) Molar mass ie/mal Q Amount...
a) How many moles of Al2(SO4)3 are required to make 43 mL of a 0.060 M Al2(So4)3 solution? (Hint, molarity is moles per liter. You know the molarity. You are given the number of mL's, which can be converted to liters. Just set it up so the units cancel and you get "moles".) moles Al2(SO4)3 b) What is the molecular weight of Al2(S04)3, to the nearest gram? grams c) What mass of Al2(SO4)3 is required to make 43 mL of...
Molecular formula
Molecular formula From the formula mass of the empirical formula on the previous page, and the molar mass of the hydrocarbon above, calculate the molecular formula of your hydrocarbon. What is the molecular formula of your hydrocarbon? Show calculation. PBL Report Members Empirical formula 42 477 From the data in page 1 calculate g of co, and g H,O Show calculations and include units ns0a634g 79 Mass of H2O 69.577-68.912 Convert the g of CO2 and g H20,...
Calculate the number of grams of solid Tris-base (121.1 g/mol) required to prepare 250.0 mL of a 50.0 mM solution. Calculate the number of milliliters of 5 M NaCl required to prepare 875.0 mL of a 25 mM NaCl solution.
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