2,220 Answered Questions for the topic organic chemistry

Organic Chemistry Science Chemistry Biochemistry

10/13/20

Reaction, urgent.
A mixture of gaseous reactants is put into a cylinder, where a chemical reaction turns them into gaseous products. The cylinder has a piston that moves in or out, as necessary, to keep a constant... more
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Organic Chemistry Science Chemistry Biochemistry

10/13/20

Reaction question, urgent
A chemist measures the energy change during the following reaction:C3H8(g) + 5O2(g) --> 3CO2(g) + 4H2O(l) DeltaH = -2220 kJUse the information to answer the following questions.--- Is the... more
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Organic Chemistry Chemistry

10/12/20

When would you need to protect an alcohol group? Provide the steps required in protecting alcohols.
When would you need to protect an alcohol group? Provide the steps required in protecting alcohols.
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Organic Chemistry Science Chemistry Biochemistry

10/12/20

Two questions related to antacids
In this experiment, the relative ‘strength’ of commercial antacids at neutralizing stomach acid is determined by titration with standard NaOH solution. The parietal cells (the acid secreting cells)... more
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Organic Chemistry Science Chemistry Biochemistry

10/12/20

Balanced Net Ionic Equations with Antacids:
Write a balanced net ionic equation for the neutralization of hydrochloric acid with each of the antacids. Alka-Seltzer: Equate: Gaviscon: Maalox (tablet): Milk of Magnesia: Rolaids:
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Organic Chemistry Science Biology Chemistry

10/12/20

Can someone tell me how I should answer this question?
A 45 year-old woman complaining of breast pain was diagnosed with having HER2-positive breast cancer. The patient underwent lumpectomy followed by a period of chemotherapy including adjuvant... more
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Organic Chemistry Science Chemistry Biochemistry

10/12/20

Organic Chemistry - ALKANES

Industrial preparation of alkanes involves:a)   fractional distillation  c) alkylationb)   polymerization          d) all of the abovE
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Organic Chemistry Chemistry

10/12/20

What mass of KCl is needed to prepare a 100mL with a concentration of 1.00 x 10^-3mol.L^-1?
The question is in the title, and the answer is asking for Mass in grams, im not exactly sure how to do it. Please help!
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Organic Chemistry Chemistry Biochemistry

10/11/20

How many mL of stomach acid would be neutralized by the antacid?
If 1.95 x 10-3 mols of stomach acid is neutralized by the antacid, and the concentration of stomach acid is 0.155 M, how many mL of stomach acid would be neutralized by the antacid?a. 13.4 mLb.... more
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Organic Chemistry Chemistry

10/11/20

How many grams of O2(g) are needed to completely burn 95.1 g C3H8(g)?
The combustion of propane may be described by the chemical equationHow many grams of  are needed to completely burn 
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Organic Chemistry Science Chemistry Biochemistry

10/11/20

Calculate the heat?
A gas tank in a home barbeque contains 13.2 kg of propane, C3H8, (44.1 g/mol). Calculate the heat (in kJ) associated with the complete combustion of all of the propane in the tank given the... more
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Organic Chemistry Chemistry

10/11/20

Provide the oxidizing agents that allow alcohols to be converted into carbonyl compounds.Give an example of the oxidation of primary, secondary and tertiary alcohols.
Provide the oxidizing agents that allow alcohols to be converted into carbonyl compounds.Give an example of the oxidation of primary, secondary and tertiary alcohols.
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Organic Chemistry Chemistry

10/11/20

Provide the reaction conditions for the acidic cleavage of ethers.Give an exampleof the reaction.

Provide the reaction conditions for the acidic cleavage of ethers. Give an example of the reaction.
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Organic Chemistry Chemistry React

10/11/20

Provide the reaction conditions for:
Provide the reaction conditions for (a) acid-catalyzed dehydration of alcohols (industrial preparation)(b) Williamson ether synthesis(c) alkyoxymercuration-demercuration(analogous to... more
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Organic Chemistry Science Chemistry Biochemistry

10/10/20

Is work (w) being done on the gas or by the gas in the cylinder? Will the sign of work be >0 or <0?
Consider a gas enclosed in a cylinder with a piston. If the gas is compressed by lowering the piston, is work (w) being done on the gas or by the gas in the cylinder? Will the sign of work be >0... more
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Organic Chemistry Chemistry Biochemistry

10/10/20

Which of the following has a negative value of ΔH?
Which of the following has a negative value of ΔH?a. The melting of snowb. The evaporation of ethanolc. The combustion of gasolined. The dissolution of ammonium nitrate in a cold pack
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Organic Chemistry Chemistry Biochemistry

10/10/20

Calculate the change in internal energy, ΔU, for a system that does 422 J of work and loses 227 J of energy as heat
Calculate the change in internal energy, ΔU, for a system that does 422 J of work and loses 227 J of energy as heat.
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Organic Chemistry Chemistry Biochemistry

10/10/20

Calculate the equilibrium temperature of the coffee.
14.0g of cream at 11.5°C are added to an insulated cup containing 150.0g of coffee at 84.6°C. Calculate the equilibrium temperature of the coffee.You may assume no heat is lost to the cup or... more
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Organic Chemistry Chemistry Biochemistry

10/10/20

Calculate the equilibrium temperature of the water.
A 47.0g sample of brass, which has a specific heat capacity of 0.375·J·g−1°C−1, is dropped into an insulated container containing 300.0g of water at 15.0°C and a constant pressure of 1atm. The... more
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Organic Chemistry Chemistry Biochemistry

10/10/20

Urgent: How many mols of HCl remained after neutralization by the antacid?
25.00 mL of 1.034 M HCl was reacted with an antacid tablet and the remaining HCl was titrated with 1.068 M NaOH. If the volume of NaOH at the end point of the titration was 18.50 mL, how many mols... more
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Organic Chemistry Chemistry Biochemistry

10/09/20

Calculate the equilibrium temperature of the water.
A 46.0g sample of aluminum, which has a specific heat capacity of 0.897·J·g−1°C−1, is dropped into an insulated container containing 100.0g of water at 60.0°C and a constant pressure of 1atm. The... more
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Organic Chemistry Chemistry Biochemistry

10/09/20

Calculate the specific heat capacity of quartz according to this experiment.

A 52.3 g sample of quartz is put into a calorimeter that contains 150.0 g of water. The quartz sample starts off at 95.3 C and the temperature of the water starts off at 25.0 C. When the... more
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Organic Chemistry Chemistry Biochemistry

10/09/20

Redox Terminology question
You add sulfuric acid into CuO, turning the solution into a blue color.In the next step, you add Zn(s) to the blue solution. What is the purpose of adding Zn(s) in this step? Explain by using... more
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Organic Chemistry Chemistry Biochemistry

10/08/20

Molecular and Net Ionic Equation
What is the type of reaction when sulfuric acid is added to the black CuO(s)?Write a molecular equation and a net ionic equation for the reaction to support your answer.What are the spectator ions?
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Organic Chemistry

10/08/20

Boyle law lab question
If you add 1.000atm of butane and what would the volume be at 2.350atm pressure and what would the pressure be at 120ml of water (adding water with each pressure increase)
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