2,220 Answered Questions for the topic organic chemistry

Organic Chemistry Science Chemistry Biochemistry

04/29/20

Using data from the figure, graph the density as a function of the temperature for liquid water from 100°C to 4°C.
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Organic Chemistry Science Chemistry Biochemistry

04/29/20

Hydrogen fluoride (HF) has a lower boiling point than water (H2O), even though fluoride (F) has a greater electronegativity than oxygen (O). Why do you think that is?
Hydrogen fluoride (HF) has a lower boiling point than water (H2O), even though fluoride (F) has a greater electronegativity than oxygen (O). Why do you think that is?
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Organic Chemistry Science Chemistry Biochemistry

04/29/20

Printers often use surfactants in the printing of paper with ink. Explain why this might be.
Printers often use surfactants in the printing of paper with ink. Explain why this might be.
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Organic Chemistry Science Chemistry Biochemistry

04/29/20

Why is water (H2O) a liquid at room temperature while carbon dioxide (CO2) is a gas? What’s different about their structures that results in very different properties?
Why is water (H2O) a liquid at room temperature while carbon dioxide (CO2) is a gas? What’s different about their structures that results in very different properties?
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Organic Chemistry Science Chemistry Biochemistry

04/29/20

If 1 mole of each of the solutes listed below is dissolved in 1 L of water, which solute will have the greatest effect on the vapor pressure of its respective solution?

Which is the correct answer?A) C6H12O6B) CaSO4C) KBrD) MgCl2
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Organic Chemistry Science Chemistry Biochemistry

04/29/20

Calculate the boiling point elevation of a solution containing 43.8 g of glucose (C6H12O6) dissolved in 359.9 g of water. Calculate the freezing point depression for the same solution.
boiling point elevation = _____ degrees Celsiusfreezing point depression = ____ degrees Celsius
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Organic Chemistry Chemistry Biochemistry

04/28/20

A scientist measures the standard enthalpy change for the following reaction to be 593.6 kJ:
A scientist measures the standard enthalpy change for the following reaction to be 593.6 kJ:2H2O(l)  2H2(g) + O2(g)Based on this value and the standard enthalpies of formation for the other... more
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Organic Chemistry Chemistry Biochemistry

04/28/20

The standard enthalpy change for the following reaction is -1.39×103 kJ at 298 K. 
The standard enthalpy change for the following reaction is -1.39×103 kJ at 298 K.  3 Mn(s) + 2 O2(g)Mn3O4(s)    ΔH° = -1.39×103 kJ  What is the standard enthalpy change for the reaction Mn3O4(s)3... more
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Organic Chemistry Chemistry Biochemistry

04/28/20

what is the standard enthalpy change for the reaction:
Given the standard enthalpy changes for the following two reactions:(1) 2Ni(s) + O2(g)2NiO(s)......H° = -479.4 kJ(2) 2Zn(s) + O2(g)2ZnO(s)......H° = -696.6 kJwhat is the standard enthalpy change... more
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Organic Chemistry Chemistry Biochemistry

04/28/20

What is the value of H for the chemical equation givenWhat is the value of H for the chemical equation given
The reaction of  carbon monoxide(g) with hydrogen(g) to form methane(g) and water(g) proceeds as follows:CO(g) + 3H2(g) CH4(g) + H2O(g) When 7.45 grams of CO(g) react with... more
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Organic Chemistry Chemistry Biochemistry

04/27/20

Gases Liquids and Solids 4.27.20
A solution of ethanol CH3CH2OH and water that is 10.% ethanol by mass is boiling at 98.7°C. The vapor is collected and cooled until it condenses to form a new solution.Calculate the percent by mass... more
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Organic Chemistry Chemistry Biochemistry

04/26/20

Gases Liquids and Solids

A certain liquid X has a normal freezing point of 5.50°C and a freezing point depression constant = Kf 1.83·°C·kgmol−1. A solution is prepared by dissolving some iron(III) chloride (FeCl3)... more
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Organic Chemistry Chemistry Biochemistry

04/25/20

Precipitation General Chemistry Question
Is a precipitate expected to form when 50.0 mL of 0.0010 M BaCl2 is added to 50.00 mL of 0.00010 M Na2SO4? Ksp for barium sulfate is 1.1 x 10-10.
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Organic Chemistry Chemistry Biochemistry

04/25/20

Calculating Solubility from the Ksp
Calculate the molar solubility of calcium sulfate given Ksp = 2.4 x 10-5
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Organic Chemistry Chemistry Biochemistry

04/25/20

Calculating Ksp from Solubility

The molar solubility of Pb3(AsO4)2 is 3.34x10-8 mol/L. Calculate Ksp.
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Organic Chemistry

04/25/20

A doctor orders 3mg of compazine. If the stock solution is 1.5% how many milliliters are administered to the patient
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Organic Chemistry

04/24/20

please i need help with this quetions with steps?
1.     The data in the table below is collected for the reaction: CO(g) + Cl2(g) → COCl2(g).  a) Determine the rate law. _______________________________b) Calculate the value of the rate... more
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Organic Chemistry

04/24/20

7. Given the following rate law, how does the rate of reaction change if the concentration of Y is reduced by a factor of three? Rate = k [X] [Y]2

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Organic Chemistry

04/23/20

How long does it take to answer an organic chem question?
Is this free. We send organic Chemistry question and you reply how soon? Thank you
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Organic Chemistry Chemistry Biochemistry

04/22/20

General Chemistry Acids and Base Question

What is the hydroxide ion concentration of a KOH solution that has a pH of 9.20?
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Organic Chemistry Chemistry

04/22/20

Naturally occurring element X exists in three isotopic forms: X-28 (27.977 amu, 92.21% abundance), X-29 (28.976 amu, 4.70% abundance), and X-30 (29.974 amu, 3.09% abundance).
Naturally occurring element X exists in three isotopic forms: X-28 (27.977 amu, 92.21% abundance), X-29 (28.976 amu, 4.70% abundance), and X-30 (29.974 amu, 3.09% abundance). Calculate the atomic... more
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Organic Chemistry Chemistry

04/22/20

What mass of calcium chloride, CaCl2, is needed to prepare 2.85 L of a 1.56 M solution?

What mass of calcium chloride, CaCl2, is needed to prepare 2.85 L of a 1.56 M solution? 316 grams203 grams493 grams25.0 grams
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Organic Chemistry Chemistry

04/22/20

Vitamin C contains 40.90% carbon, 4.58% hydrogen, and 54.52% oxygen by mass. Determine the empirical formula of vitamin C.
Vitamin C contains 40.90% carbon, 4.58% hydrogen, and 54.52% oxygen by mass. Determine the empirical formula of vitamin C. C2H3O2C3H5O3C6H8O6C3H4O3
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Organic Chemistry Chemistry

04/22/20

A sample of ammonia, NH3, has a mass of 56.6 grams. Calculate the number of hydrogen atoms present in this sample.

A sample of ammonia, NH3, has a mass of 56.6 grams. Calculate the number of hydrogen atoms present in this sample. Answers"6.67 x 10235.44 x 10236.00 x 10242.00 x 1024
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Organic Chemistry Math Chemistry Biochemistry

04/21/20

CHEMISTRY DECOMPOSITION

For the decomposition of nitramide in aqueous solution at 25°C, the rate of the reaction is determined by measuring the appearance of N2O. NH2NO2(aq)=N2O(g) + H2O(l)At the beginning of the reaction... more
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