251 Answered Questions for the topic chemical engineering

Chemical Engineering Algebra 2 Calculus Chemistry

02/07/22

Gaseous butane (CH3(CH2)2 CH3) reacts with gaseous oxygen gas (O2) to produce gaseous carbon dioxide (CO2) and gaseous water (H2O).
If 18.5g of water is produced from the reaction of 34.3g of butane and 87.1g of oxygen gas, calculate the percent yield of water. Round your answer to 3 significant figures.= _____ %
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Chemical Engineering Calculus Chemistry Precalculus

02/06/22

Gaseous butane (CH3(CH2)2 CH3) reacts with gaseous oxygen gas (O2) to produce gaseous carbon dioxide (CO2) and gaseous water (H2O).

If 18.5g of water is produced from the reaction of 34.3g of butane and 87.1g of oxygen gas, calculate the percent yield of water. Round your answer to 3 significant figures.= _____ %
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Chemical Engineering Algebra 2 Calculus Chemistry

02/06/22

Aqueous sulfuric acid (H2SO4) reacts with solid sodium hydroxide (NaOH) to produce aqueous sodium sulfate (Na2SO4) and liquid water (H2O).
If 3.23g of sodium sulfate is produced from the reaction of 2.9g of sulfuric acid and 3.3g of sodium hydroxide, calculate the percent yield of sodium sulfate. Round your answer to 2 significant... more
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Chemical Engineering Calculus Chemistry Precalculus

02/04/22

Aqueous hydrobromic acid (HBr) reacts with solid sodium hydroxide (NaOH) to produce aqueous sodium bromide (NaBr) and liquid water (H2O).
What is the theoretical yield of sodium bromide formed from the reaction of 4.0g of hydrobromic acid and 3.4g of sodium hydroxide? Round your answer to 2 significant figures.
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Chemical Engineering Algebra 2 Calculus Chemistry

02/02/22

Gaseous butane (CH3(CH2)2 (CH3) reacts with gaseous oxygen gas (O2) to produce gaseous carbon dioxide (CO2) and gaseous water (H2O)
What is the theoretical yield of water formed from the reaction of 4.65g of butane and 26.5g of oxygen gas? Round your answer to 3 significant figures.= _____ g
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Chemical Engineering Calculus Chemistry Precalculus

02/02/22

Liquid octane (CH3(CH2)6 CH3) will react with gaseous oxygen (O2) to produce gaseous carbon dioxide (CO2) and gaseous water (H2O).
Suppose 10. g of octane is mixed with 61.2 g of oxygen. Calculate the maximum mass of water that could be produced by the chemical reaction. Round your answer to 2 significant digits.= ______ g
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Chemical Engineering Science Chemistry Biochemistry

02/02/22

Aqueous sulfuric acid (H2SO4) will react with solid sodium hydroxide (NaOH) to produce aqueous sodium sulfate (Na2SO4) and liquid water (H2O).
Suppose 18. g of sulfuric acid is mixed with 24.3 g of sodium hydroxide. Calculate the minimum mass of sulfuric acid that could be left over by the chemical reaction. Round your answer... more
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Chemical Engineering Chemistry Statistics

01/12/22

Finding determinate source of error
An analyst applies the neutralization titration method to determine the amount of NaHCO3 in an antacid tablet. Before the measurement, the analyst checks the method by titrating a standard sample... more
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Chemical Engineering Chemistry

01/12/22

pH Calculating

Calculate the pH of a solution prepared by dissolving 2.25 g lactic acid (90 g/mol) in 100 mL of 0.25 M NaOH solution. ( Ka (lactic acid)= 1.38x10-4 )
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Chemical Engineering Chemistry

01/12/22

Calculating the pZn value
Calculate the pZn value after the addition of 25 mL of titrant in the titration of 50 mL of 0.01 M Zn2+ solution buffered to pH 11 with 0.02 M EDTA. (Kf = 3.2 x 1016 α4 = 0.85)
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Chemical Engineering Chemistry

01/12/22

Buffer solution pH calculation
What is the pH of the buffer formed by mixing 50 mL of 0.2 M NaH2PO4 with 50 mL of 0.12 M HCl. ( Ka1(H3PO4)= 7.11x10-3 Ka2(H3PO4)= 6.32x10-8 Ka3(H3PO4)= 4.5x10-13 )
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Chemical Engineering Chemistry

12/12/21

Chemistry Questions
What do most of the rocks and minerals in the Earth’s crust consist of? Give an example.Definition of ionic compound?What does the chemical formula of an ionic compound represent? What is the name... more
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12/05/21

At what temperature does uranium hexafluoride have a density of 0.8980 g/L at 0.5073 atm?
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12/02/21

PLEASE HELP ASAP 😭😭
Please show me or write me the code on how to draw a plot in Matlab for the temperature radius plot for the steady state heat transfer in maltilayer cylinder.(Conduction and Convection heat... more
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Chemical Engineering Chemistry Physical Science

11/22/21

Hypothetical Phase Diagram
1.A hypothetical three component system has a composition of 24% A, 40% B and 36% C. Plot this composition in a Roozeboom diagram.2. Draw (illustrate) a hypothetical phase diagram incorporating the... more
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Chemical Engineering Science Chemistry Physics

11/09/21

Compute the total enthalpy change by using the Hess Law
Use the Hess law to calculate the total enthalpy2H2O ------> 2H2 + O2 +572 KJ/mol2HF  ------> H2 + F2 + 542 KJ/mol
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Chemical Engineering Science Chemistry Physics

11/09/21

----------Chemistry--------
Prove that the enthalpy change of formation is equal to the total change reaction using carbon dioxide.C2H5OH + O2 ------> CO2 + H2OC2H5OH ------- ΔH= -278KJ O2 ------- ΔH= 0 ... more
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Chemical Engineering Mass Transfer

11/03/21

PLEASE HELP ME OUT ASAP!

Consider tablets that are contained in a blister package composed of a flat lidding sheet and a second, formed sheet that includes troughs to hold each tablet. The formed sheet is L = 50 micron... more
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11/01/21

;))))))))) Chemistry
why does when we increase the concentration of a set of reactant the rate of chemical reaction also increases?
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11/01/21

-------CHEMISTRY------------
Explain the mechanism of catalyst in increasing and decreasing the rate of chemical reaction.
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11/01/21

CHEMISTRY!!!!!!!!!!!!!!!!!!!!!!!!!
why does when the greater the frequency of successful collisions between reactant particles happens the greater the reaction rate.
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10/26/21

Find the morality and molality
16.0 g CH3OH and 50.0 g water are combined to make a solution. What is the molarity and molality of methanol (CH3OH) in the solution if the density of the solution is 0.955 g/mL?
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Chemical Engineering Chemistry Chemistry Biochemistry

10/26/21

Find the electronegativity difference
What is the electronegativity difference of CH3OH?Carbon=2.5 Hydrogen=2.1 Oxygen=3.5a. 1.1b. 5c. 0.9d. none of the above
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10/26/21

Find the molarity of this solution.
In 20.0 degree Celsius, a 0.258 m aqueous solution of C6H12O6 (glucose) has a density of 1.017 g/mL. Find the molarity of this solution.
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10/14/21

Ibuprofen (C13H18O2) is an analgesic (painkiller). What is the molar mass of ibuprofen?

Ibuprofen (C13H18O2) is an analgesic (painkiller). What is the molar mass of ibuprofen? 
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