2,220 Answered Questions for the topic organic chemistry

Organic Chemistry Chemistry Biochemistry

10/18/19

Calculate the formula mass of each compound. Keep at least one decimal place in atomic masses from the periodic table.
hydrogen peroxide, H2O2: phosphoric acid, H3PO4:
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Organic Chemistry Chemistry Biochemistry

10/17/19

Chemistry: Equilibrium Math Question 9
The equilibrium constant for dissociation of ammonium chloride:NH4Cl(s) ↔ NH3(g) + HCl(g)is equal to KP = 0.013312 at 550.0 K. If 1.5 g of ammonium chloride is placed in a 1.0 L vessel and charged... more
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Organic Chemistry Chemistry Biochemistry

10/17/19

Chemistry: Equilibrium Math Question 8
The water-gas shift reaction is crucial to many industrial processes:H2O(g) + CO(g) ↔ H2(g) + CO2(g)The equilibrium constant for this reaction is K = 3.087012 at 802.0 K. If a vessel is initially... more
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Organic Chemistry Chemistry Biochemistry

10/17/19

Chemistry: Equilibrium Math Question 7
Consider the equilibrium between hydrogen sulfide and its gaseous elements:2 H2S(g) ↔ 2 H2(g) + S2(g) KP = 2.023E-6 at 908.0 Kif a vessel is initially charged with 8.35 bar of pure H2S(g), what is... more
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Organic Chemistry Chemistry Biochemistry

10/17/19

Chemistry: Equilibrium Math Question 6
Determine the equilibrium vapor pressure of germanium metal at 508.0 C. The standard enthalpy of vaporization of germanium is 376.6 kJ/mol and the vapor pressure at 100 C is 1.6E-32 Pa. Be sure to... more
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Organic Chemistry Chemistry Biochemistry

10/17/19

Chemistry: Equilibrium Math Question 5
A closed vessel is charged with 0.23 bar of hydrogen gas and allowed to react with excess I2(s) at 25 C.H2(g) + I2(s) ↔ 2 HI(g)What is the final equilibrium pressure of HI(g) in the vessel? KP = 0.284 more
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Organic Chemistry Chemistry Biochemistry

10/17/19

Chemistry: Equilibrium Math Question 4
At 25 C, the partial pressure of CO2(g) in a bottle of soda water is 1 bar. Calculate the equilibrium concentration of dissolved carbon dioxide under these conditions. The equilibrium constant for... more
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Organic Chemistry Chemistry Biochemistry

10/17/19

Chemistry: Equilibrium Math Question 3
A2B ↔ 2A + BWith this simple equation, if you start with 0.815 M A2B, and at equilibrium 53% of it has decomposed, what is the equilibrium constant?
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Organic Chemistry Chemistry Biochemistry

10/17/19

Chemistry: Equilibrium Math Question 2
The equilibrium constant for dissolving oxygen gas in aqueous solution is 1.33E-4. Compute the equilibrium concentration of dissolved oxygen, in mg L-1 when the partial pressure of O2 above the... more
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Organic Chemistry Math Chemistry Biochemistry

10/17/19

Chemistry: Equilibrium Math Question
If a closed vessel is charged with 89000.0 Pa of nitric oxide and allowed to react with excess liquid bromine, what is the equilibrium partial pressure of the product?NO(g) + ½ Br2(l) ↔ NOBr(g)... more
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Organic Chemistry

10/09/19

What quantity of 6.00 M aqueous H3PO4 (in mL) would be required to neutralize 589 mL of 2.60 M aqueous NaOH?

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Organic Chemistry Chemistry Instrumental Analysis

10/04/19

Finding Molecular Mass and Formula
A compound known to be a pain reliever had the empirical formula C8H8O4. When a mixture of 5.02 mg of the unknown and 50.37 mg of camphor was prepared, the melting point of a portion of this... more
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Organic Chemistry Chemistry Chem Molarity

10/03/19

Morality and Mass percent of Vinegar

A 10.00 -mL sample of vinegar, an aqueous solution of acetic acid (HC2H3O2), is titrated with .5073M NaOH, and 17.64 mL is required to reach the equivalence point.What is the molarity of the acetic... more
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Organic Chemistry

10/03/19

chemistry moles
For the following reaction, 4.40 grams of potassium hydroxide are mixed with excess carbon dioxide. The reaction yields 4.04 grams of potassium carbonate.carbon dioxide (g) + potassium... more
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Organic Chemistry

09/30/19

Chemistry 110 Concentration
A student placed 12.5 g of glucose (C6H12O6) in a volumetric flask, added enough water to dissolve the glucose by swirling, then carefully added additional water until the 100. mL mark on the neck... more
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Organic Chemistry

09/30/19

What is the empirical formula of the unknown compound?
An unknown compound contains only C , H , and O . Combustion of 3.50 g of this compound produced 8.24 g CO2 and 2.25 g H2O . What is the empirical formula of the unknown compound? Insert subscripts... more
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Organic Chemistry

09/27/19

Give the formula for the conjugate base of each acid. HSO4-
H3PO4HPO42HNO3
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Organic Chemistry Chemistry General Chemistry

09/27/19

A concentrated solution of HF has a molarity of 8.25 M. You add 23.50 mL to a flask and then dilute with water. The mass of the final solution is 125.0 g. What is the mass percent of HF ?
I can't figure it out. Please help, thank you
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Organic Chemistry

09/20/19

How many ml of 2.50 M NaOH are needed to react with 0.289 of o-toluic acid?
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Organic Chemistry English Biology Chemistry

09/17/19

Find the next two terms of sequence
U0 = 1U1 =3And Un is defined by Un+2 = 2 * Un+1 + 3 * UnFind the next two terms
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Organic Chemistry Chemistry Differential Equations

09/17/19

Synthesis of ammonia chemistry equation

The synthesis of ammonia is given below: H2+N2 =NH3calculate the mass in grams of nitrogen gas required to form 1.43kg of ammonia gas.relative atomic masses: hydrogen = 1; nitrogen = 14
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Organic Chemistry

09/16/19

Define bond length.how It changes with electronegatitivity,bond order and hybridisation.
Define bond length.How it changes with electronegativity,bond order and hybirdisation.
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Organic Chemistry Chemistry Biochemistry

09/15/19

Molecules and Formula unit
some times we are asked to write the equation in particles form. I was wondering what is the difference between molecules and formula unit cause google didn't help.
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Organic Chemistry Chemistry Problems

09/11/19

please help me step by step so i may understand this on how to put this together

Copper (Cu) has two common isotopes. One isotope has 34 neutrons and 29 protons, and it accounts for 69.15% of all copper. The other isotope has 36 neutrons and 29 protons and it accounts for... more
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Organic Chemistry Chemistry Problems Help

09/11/19

chemistry problem, explain because I got lost doing this and its not giving me the answer that we have

The atomic mass of chlorine is 35.45 amu. Calculate the mass of the first isotope if it has a % natural abundance of 75.77% and the second isotope has % natural abundance of 24.23% and mass of... more
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