2,220 Answered Questions for the topic organic chemistry

10/14/21

How many molecules are in 16.8 moles of H2O?
How many molecules are in 16.8 moles of H2O? a. 6.022 x 1023 molecules b. 16.8 molecules c. 1.012 molecules d. 1.012 x 1025 molecules
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10/14/21

How many moles of each type of atom are in one mol of C6H12O6?
How many moles of each type of atom are in one mol of C6H12O6? a. 1 mole of C atoms, 12 moles of H atoms, and 1 mole of O atoms b. 6 mole of C atoms, 12 moles of H atoms, and 1 mole of O... more
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Organic Chemistry

10/12/21

Determine the limiting reagent and the theoretical yield of urea [(NH2) 2CO]
Suppose that 4.75 g of NH3 are mixed with 7.50 g of CO2. Determine the limiting reagent and the theoretical yield of urea [(NH2) 2CO]. b) How many grams are needed to prepare 25.00 mL of a 5% m /... more
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Organic Chemistry Chemistry Biochemistry Chem

10/10/21

Chemistry Help... N2 + 3 H2 produces 2 NH3

How many moles of ammonia are produced when 2.5 moles of hydrogen (H2) react? How many moles of nitrogen (N2) are needed to react when 2.5 moles of hydrogen react?How many grams of ammonia are... more
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Organic Chemistry Science Chemistry Moles

10/10/21

What is the number of moles from this chemical equation below?
2NaOH(aq) + CaBr2(aq) ==> Ca(OH)2 + 2NaBr(aq)
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Organic Chemistry Science Chemistry Stoichiometry

10/10/21

What is the type of reaction of this balanced equation?
2NaOH(aq) + CaBr2(aq) ==> Ca(OH)2 + 2NaBr(aq)
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Organic Chemistry Science Chemistry Moles

10/10/21

What is the number of particles or formula units of this chemical eqution?
2NaOH(aq) + CaBr2(aq) ==> Ca(OH)2 + 2NaBr(aq)
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10/09/21

Balance the following chemical equation. Use coefficients in front the reactants or products that need to be balanced. If the coefficient is one, write the number "1"
_________________ MgCl2 + _________________ K → _________________ KCl + _________________ Mg
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10/09/21

Balance the following chemical equation.
Q1 _______________ NaN3 → _______________ Na + _______________ N2Q2_______________ N2H4 + _______________ Cl2 → _______________ N2 +  _______________ HCl
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10/09/21

Balance the following chemical reaction:
 _______________ Fe2O3 + _______________ C → _______________ Fe + _______________ CO2_______________ Li + _______________ N2 → _______________ Li3N
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10/09/21

Match is statement with the correct option: oxidation or reduction
The loss of electrons is _________________.The gain of electrons is _______________.Addition of oxygens is _______________.Removal of oxygens is _________________.Addition of hydrogens is... more
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10/09/21

In each reaction, indicate whether oxidation or reduction is occuring.
N2 → NH3CH2CH3OHCH3 → CH3COCH3Zn → Zn2+ + 2e-HCHO → HCOOHA. reductionB. oxidation
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10/09/21

Identify each type of reaction:
C2H5OH + 3 O2 → 2 CO2 + 3 H2O2 Ca (s) + O2 (g) → 2 CaO (s) CaCO3 (s) → CaO (s) + CO2 (g)C + 2H2 → CH4a. combustionb. decompositionc. combination
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10/09/21

Match the following chemical reactions with the answers "YES" or "NO". Are the following chemical equations balanced?
2 Hg (l) + O2 (g) → Hg2O2 (s)C2H4 (g) + 2 O2 (g) → 2 CO2 (g) + 2 H2O (l)Mg(NO3)2 (s) + 2 Li (s) → Mg (s) + 2 LiNO3 (s)H2 (g) + O2 (g) → H2O (l)a. Nob.Yes
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10/09/21

Match the following chemical reactions with the answers "YES" or "NO". Are the following chemical equations balanced?
2 Hg (l) + O2 (g) → Hg2O2 (s)C2H4 (g) + 2 O2 (g) → 2 CO2 (g) + 2 H2O (l)Mg(NO3)2 (s) + 2 Li (s) → Mg (s) + 2 LiNO3 (s)H2 (g) + O2 (g) → H2O (l)a. Nob.Yes
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10/09/21

What are the products? C + O2 → CO2
a. C and CO2b. O2 only c. CO2d. C only
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Organic Chemistry Chemistry

10/07/21

Confused about this problem
When (1.000x10^1) grams of calcium carbonate (CaCO3) is reacted completely with 50.0 mL of hydrochloric acid (HCl, d = 1.096 g/mL), all of calcium carbonate reacts to form a solution that weighs... more
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Organic Chemistry Chemistry Biochemistry

10/06/21

What is the net charge of the tripeptide at pH 11.5?
Consider the following pKa values for glycine, arginine, and lysine. What is the approximate net charge of the tripeptide Gly-Arg-Lys at pH 11.5?Free amino acid pKa of alpha-carboxyl group ... more
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Organic Chemistry Chemistry Biochemistry

10/06/21

What is the net charge of the tripeptide at pH 11.5?
Consider the following pKa values for glycine, arginine, and lysine. What is the approximate net charge of the tripeptide Gly-Arg-Lys at pH 11.5?Free amino acid pKa of alpha-carboxyl group ... more
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Organic Chemistry

10/06/21

average atomic mass
Calculate the atomic mass for magnesium given the following data for its natural isotopes.24Mg: 23.985 amu, 78.70%25Mg: 24.986 amu, 10.13%26Mg: 25.983 amu, 11.17%
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Organic Chemistry Biochemistry

10/05/21

Finding specific heat of metal

A metal object with a mass of 119.25 g is heated to 97.5 degrees * C and then transferred to a calorimeter containing 84.58 g of water at 20.5 °C. If the water and metal reach a final (equilibrium)... more
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Organic Chemistry Science Chemistry Biochemistry

10/04/21

I really need help with this question please and thank you!
When 1.00-gram sample of baking soda is heated, a gas is formed. The solid that remains weighs less than 1.00 g and does not have the same properties as the original sample. Is the baking soda an... more
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Organic Chemistry Chemistry

10/04/21

A researcher has attempted to synthesize the molecule (C8H9NO2)shown below, which has the potential to be an active pharmaceutical agent to treat chronic pain.
A researcher has attempted to synthesize the molecule (C8H9NO2)shown below, which has the potential to be an active pharmaceutical agent to treat chronic pain. While analyzing their product, they... more
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Organic Chemistry Chemistry

10/04/21

Commercial nail polish remover usually consists of a mixture of organic liquids and water. One such formulation contains ethanol
Commercial nail polish remover usually consists of a mixture of organic liquids and water. One such formulation contains ethanol (C2H6O, density = 0.789 g/mL), acetone (C3H6O, density = 0.784... more
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Organic Chemistry Chemistry

10/04/21

A chemist wishes to precisely calculate the concentration of an analytical standard solution of sodium hydroxide which they are preparing
A chemist wishes to precisely calculate the concentration of an analytical standard solution of sodium hydroxide which they are preparing, so that it can be used in later experiments. To prepare... more
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