During 2010, Bleeker Corp. entered into the following transactions. 1. Borrowed
June 26, 2019Determine how many calories of heat must be removed to change
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Get college assignment help at uniessay writers A 15.0 ml sample of nitric acid solution is titrated with a 0.960 M barium hydroxide until the end point. Based on the titration data, the concentration of nitric acid is determined to be 3.18 M. Calculate the volume in milliliters of barium hydroxide used in this titration.
How many MOLES of carbon tetrachloride are present in 3.78 grams
How many MOLES of carbon tetrachloride are present in 3.78 grams of this compound
How many grams of water are needed to react with 70.0
How many grams of water are needed to react with 70.0 g CaCN2
calculate the molarity of 122g of acetic acid, CH3CO2H, in 1.00
calculate the molarity of 122g of acetic acid, CH3CO2H, in 1.00 L of solution
the hydrogen gas generated is collected over water at 25.0 degrees
the hydrogen gas generated is collected over water at 25.0 degrees C. The volume of the gas is 243-mL measured at 1.00 atm. Calculate the number of grams of sodium used in the reaction.
At 25˚C, = 117.36 kJ/mol for CS2 (g) and = 89.70
At 25˚C, = 117.36 kJ/mol for CS2 (g) and = 89.70 kJ/mol for CS2(l) and = 237.84 J/mol•K for CS2 (g) and = 151.34 J/mol•K for CS2 (l). Calculate . Which form of CS2 is more stable at 25˚C?
a sample of benzene, C6H6, which contains a total of 5.68
a sample of benzene, C6H6, which contains a total of 5.68 mol of carbon equals how many molecules?
A sample of {rm{N}}_2 {rm{O}} gas has a density of 2.70
A sample of {rm{N}}_2 {rm{O}} gas has a density of 2.70 {rm g/L} at 298 {rm K}. what is the pressure of the gas (in mmHg)
converting liquid water to solid ice releases 1.44 kcal/mol. a)What is
converting liquid water to solid ice releases 1.44 kcal/mol. a)What is the sign of delta H for this process? b)How many kilocalories are released by freezing 2.5 mol of H2O? c)How many kilocalories are released by freezing 32 g of H2O? d) How many kilocalories are absorbed by melting 1 mol of ice?
how many grams of ammonia are present in 5.0L of a
how many grams of ammonia are present in 5.0L of a 0.050 M solution?
A 10.000-g sample of toothpaste containing stannous fluoride gives a 0.145-g
Get college assignment help at uniessay writers A 10.000-g sample of toothpaste containing stannous fluoride gives a 0.145-g precipitate of stannous phosphate. What is the percentage of SnF2 in the toothpaste sample?
Organic hydrogenation reactions, in which H2 and an “unsaturated” organic compound
Organic hydrogenation reactions, in which H2 and an “unsaturated” organic compound combine, are used in the food, fuel, and polymer industries. In the simplest case, ethene (C2H4) and H2 form ethane (C2H6). If 140. kJ is given off per mole of C2H4 reacting, how much heat is released when 14.5 kg of C2H6 forms?
What is the concentration of the unknown {rm{H}}_3 {rm{PO}}_4 solution? The
What is the concentration of the unknown {rm{H}}_3 {rm{PO}}_4 solution? The neutralization reaction is: {rm{H}}_3 {rm{PO}}_4 (aq); ;3;{rm{NaOH}}(aq); to ;3;{rm{H}}_2 {rm{O}}(l); ;{rm{Na}}_3 {rm{PO}}_4 (aq)
Consider filling a gas cylinder with ethane from a high-pressure supply
Consider filling a gas cylinder with ethane from a high-pressure supply line. Before filling, the cylinder is empty (vacuum). The valve is then opened, exposing the tank to a 3-MPa line at 500 K until the pressure of the cylinder reaches 3 MPa. The valve is then closed. The volume of the cylinder is 50 L. For ethane, use truncated virial equation of state, in pressure: Z = PV/RT = 1 B′P with B′ = -2.8×10-8 m3/J. a) What is the temperature immediately after the valve is closed. b) If the cylinder then sits in the storage at 293 K for a long time, what is the entropy change of the universe (from the original unfilled state)?
what are the ion concentrations in a .12 M solution of
what are the ion concentrations in a .12 M solution of BaCl2
A student prepared a stock solution by dissolving 20.0 g of
A student prepared a stock solution by dissolving 20.0 g of KOH in enough water to make 150. mL of solution. She then took 15.0 mL of the stock solution and diluted it with enough water to make water to make 65.0 mL of a final solution. What is the concentration of KOH for the final solution?
A calorimeter contains 29.0 of water at 11.5. When 1.80 of
A calorimeter contains 29.0 of water at 11.5. When 1.80 of (a substance with a molar mass of 55.0 ) is added, it dissolves via the reaction and the temperature of the solution increases to 30.0. Calculate the enthalpy change, , for this reaction per mole of . Assume that the specific heat and density of the resulting solution are equal to those of water [4.18 and 1.00 ] and that no heat is lost to the calorimeter itself, nor to the surroundings.
a sample of a gas at 0.75 atm occupies a volume
a sample of a gas at 0.75 atm occupies a volume of 521 mL. If the temperature remains constant, what will be the new pressure if the volume increases to 776 mL.?
What mass of NaOH is needed to precipitate the Cd^{2 } ions
What mass of NaOH is needed to precipitate the Cd^{2 } ions from 32.0 mL of 0.480 M Cd(NO3)2 solution?
how many atoms of H are in 0.184 moles of (c3h5)2O
how many atoms of H are in 0.184 moles of (c3h5)2O
A student prepared a stock solution by dissolving 15.0 g of
A student prepared a stock solution by dissolving 15.0 g of KOH in enough water to make 150. mL of solution. She then took 15.0 mL of the stock solution and diluted it with enough water to make water to make 65.0 mL of a final solution. What is the concentration of KOH for the final solution?
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