192 Answered Questions for the topic chemical engineering

Chemical Engineering Chemistry

11/20/20

i need help on this

 Does the amount of energy released or absorbed by the system increase or decrease as the amount of CaCl2 is increased (from reaction 1 to reaction 2)? Explain.

11/19/20

i need help on this

help explain how it is possible for you to see the red ball?1# How does Figure 1 help explain how it is possible for you to see the red ball?
Chemical Engineering Chemistry Organic Chemistry

11/19/20

i need help on this

Aspects of Scientific Models1.What are the key components represented in the model shown in Figure 2?2.What relationships are shown in the Figure 2 model?3.How does the Figure 2 model connect to... more
Chemical Engineering Chemistry Biochemistry Chem

11/19/20

i need help on this

SEP Construct an Explanation Describe the chemistry of the fire triangle. How does the fire triangle relate to how fiercely a wildfire burns?  SEP Construct an Explanation How do firefighters use... more
Chemical Engineering Chemistry Biochemistry Chem

11/19/20

i need help on this chemistry

Describe (in words) how conduction, convection and radiation all take place to heat the room.
Chemical Engineering Chemistry

11/18/20

Describe (in words) how conduction, convection and radiation all take place to heat the room.

Describe (in words) how conduction, convection and radiation all take place to heat the room. 
Chemical Engineering Math Physics Mechanical Engineering

10/29/20

A 20 cm high polystyrene board with a surface area of 40 dm2 is floating in the water.

a) What fraction of its volume is above the water surface?b) If a 35 kg child is placed on this board, what will be the fraction of its volume that is above the water surface?Data: Polystyrene... more
Chemical Engineering Science Chemistry Biochemistry

10/26/20

Titration: Back Titration

33.7 mL of 1.54 M hydrochloric acid is added to 31.2 mL of sodium hydroxide, and the resulting solution is found to be acidic.16.4 mL of 1.19 M barium hydroxide is required to reach neutrality.What... more

10/09/20

Please help with this question!!!

The cardinality of the set                          is  , while the cardinality of the set  is -----------  while the cardinality of the set   is--------

10/02/20

Please help with the following math question!!!

Let  and    and . Which of the following statements is (are) true?(can have many answers)a.)b.)c.)d.)e.)f.) Which of the following statements is (are) true?  .  Which of the following statements is... more

10/02/20

Please help with the power set!!!!

Which of the following is the power set of ? a.) 4b.)c.)d.)e.)     ?

10/02/20

Please help with the following is a subset!!!

Which of the following is a subset of ?Note: There may be multiple correct answers!a.) b.) c.) d.) e.)

10/02/20

Please help with the cardinality of the following set!!!!

What is the cardinality of the following set?(This can have many answers)a.) 0b.) 4c.) 7d.) 3

10/02/20

Please help with this question!!!

Consider the set          .Which of the following is the corresponding set builder notation for the above set?a.) b.) c.)d.)
Chemical Engineering

09/18/20

NUCLEAR CHEMISTRY

Write a balanced nuclear equation for the following: The nuclide uranium-234 undergoes alpha emission to give thorium-230 .
Chemical Engineering Mechanical Engineering

05/21/20

thermodynamic Problem!!

An inventor claims to have developed a novel heat pump that can, when operating steadily, deliver 100 kW of heat to a building at 40°C whilst consuming 10 kW to drive the unit. Assuming that the... more
Chemical Engineering Math Calculus Electrical Engineering

04/10/20

Can someone please help me with this? I have to find a solution using Wronskian and I'm having a very difficult time.

Given y1, can you find y2? Find y1y'2 - y'1y2 = W(t). Answer choices: 1. y2 = ty1 2. y2 = y1∫W(t) dt 3. y2 = y1 (c+∫(W(t)/y1^2) dt 4. y2 = y1∫(W(t)/y1) dt
Chemical Engineering Chemistry Organic Chemistry

04/04/20

Potassium Hydroxide from Potassium sulfate

HelloHope you are fineI had reacted 2 pressures:Potassium Sulfate with Ca(OH)2Potassium Sulfate with NaOHI Mixed them with enough water in atmospheric situation then separate CaSO4 and NaSo4 with... more

04/02/20

When a 28.4 mL sample of a 0.416 M aqueous hydrofluoric acid solution is titrated with a 0.418 M aqueous potassium hydroxide solution,

When a 28.4 mL sample of a 0.416 M aqueous hydrofluoric acid solution is titrated with a 0.418 M aqueous potassium hydroxide solution,(1) What is the pH at the midpoint in the titration? (2) What... more
Chemical Engineering Chemistry Bioplastic

02/26/20

Creating Bioplastic

Hello I am trying to create a bioplastic as a project for school. Part of this includes using a plasticizer to combine with the starch (thinking of using banana peels) but I'm not sure what... more
Chemical Engineering Chemistry Bioplastic

02/13/20

Chemistry engineering

What can I use as a plasticizer at home? I want to use it to create my own bioplastic for a school project
Chemical Engineering Chemistry Plastic Polymers

02/13/20

Making Bioplastic

Hello I am trying to create a bioplastic as a project for school. Part of this includes using a plasticizer to combine with the starch but I'm not sure what substance I can use to act as a... more
Chemical Engineering Chemistry Engineering Polymers

02/11/20

Chemical engineering project

What are some household items that can be used to create plastic polymers? I have this project for school that assigns me to create a polymer made from a chemical reaction but I'm stuck on ideas... more

12/18/19

I am trying to go thrgouh this question and I need someone who is chemsity expert to try to solve this problem which is related to the contrant rates

You designed a contrast agent that incorporates folate so it can bind to folate receptors. When injected intravenously (IV), this contrast agent will mark circulating tumor cells, overexpressing... more
Chemical Engineering Differential Equations Matlab

11/21/19

Euler with step hand written and Matlab solution

A biological process includes the growth of biomass (B) from substrate (S). The material balances on this batch process yield:where B and S are the respective biomass and substrate concentrations.... more

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