2,220 Answered Questions for the topic organic chemistry

10/05/20

URGENT!!! What can the chemist report for the specific heat capacity of the substance?

A chemist carefully measures the amount of heat needed to raise the temperature of a 697.0g sample of a pure substance from 59.9°C to 67.2°C. The experiment shows that 21.kJ of heat are needed.... more
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10/03/20

Can we make carbene with other group 14 elements?
Are carbene of heavier carbon analogues possible?
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Organic Chemistry Chemistry

10/02/20

Organic Chemistry Chromatography Question
If there is a situation where a student uses a 5:1 pentane/ethyl acetate solvent for both their TLC and column chromatography runs, why is that not a good idea? Why should a different ratio of the... more
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Organic Chemistry Chemistry Biochemistry Ap Chemistry

10/01/20

Urgent: Calculate the minimum mass of hydrobromic acid that could be left over by the chemical reaction.

Aqueous hydrobromic acid HBr will react with solid sodium hydroxide NaOH to produce aqueous sodium bromide NaBr and liquid water H2O.Suppose 45. g of hydrobromic acid is mixed with 16.6 g of sodium... more
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Organic Chemistry

09/30/20

2H2 + O2 → 2H2O how many grams of water can be made by reacting 3.41 g of O2?
Looking for the equation to solve this. I don't need the answer I am trying to practice solving on my own. Thank you in advance!
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Organic Chemistry

09/30/20

4Al + 3O2 → 2Al2O3 how many moles of Al2O3 can be made by reacting 49.2 moles of O2
Looking for steps/explanation how to solve this
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Organic Chemistry

09/30/20

How many moles are in 239 g of iron? Express your answer to three significant figures.
If someone could just show me the steps so I can practice solving by myself. Online classes have been very difficult.
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Organic Chemistry

09/30/20

How many moles are in 1.06 x1020 atoms of iron? Express your answer to three significant figures and in correct scientific notation.
If someone can show me the steps so I can solve on my own. I've been struggling with online classes just want to make sure my equations are right. I solved like this but I'm unsure if it is right.... more
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Organic Chemistry

09/30/20

For the balanced chemical reaction C3H8 + 5O2 → 3CO2 + 4H2O how many grams of C3H8 are needed to make 10.7 g of H2O? Express your answer to three significant figures.
Looking for the steps to solve this equation.I got 470.8 grams of C3H8
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Organic Chemistry Chemistry Biochemistry Ap Chemistry

09/30/20

Calculate the largest amount of H2O that could be produced.
Hydrogen (H2) gas and oxygen (O2) gas react to form water H2O vapor. Suppose you have 1.0 mol of H2 and 5.0 mol of O2 in a reactor.Calculate the largest amount of H2O that could be produced.Round... more
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Organic Chemistry Chemistry Biochemistry Ap Chemistry

09/29/20

What is the density of the iron nugget?
An iron nugget weighing 8.14 g was placed in a graduated cylinder and 25.1 cm3 of water was added to the cylinder. The total volume after adding the water was 26.2 cm3.What is the density of the... more
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Organic Chemistry Chemistry Biochemistry

09/29/20

Which is more stable, cis or trans?
Which is more stable out of these stereoisomers?(a) cis-1,2-dimethylcyclopentane(b) trans-1,2-dimethylcyclopentane
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Organic Chemistry Chemistry Biochemistry Ap Chemistry

09/29/20

Hydrogen (H2) gas and oxygen (O2) gas react to form water (H2O) vapor. 
Hydrogen (H2) gas and oxygen (O2) gas react to form water (H2O) vapor. Suppose you have 5.0 mol of (H2) and 11.0 mol of (O2) in a reactor.Suppose as much as possible of the H2 reacts. How much will... more
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Organic Chemistry Chemistry Biochemistry

09/28/20

(CHEMISTRY) Wedge/Dash Structures help!
I'm not sure of the wedge and dash structures for fromaldehyde, sulfite ion, and boron trichloride. I can't seem to find any information about it :(Thank you for your help!
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Organic Chemistry Chemistry Biochemistry Ap Chemistry

09/28/20

Calculate the largest amount of CO2 that could be produced.

Methane (CH4) gas and oxygen (O2) gas react to form carbon dioxide (CO2) gas and water (H2O) vapor. Suppose you have 9.0 mol of (CH4) and 3.0 mol of (O2) in a reactor.Calculate the largest amount... more
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Organic Chemistry Chemistry Biochemistry Ap Chemistry

09/28/20

What mass of oxygen gas is produced by the reaction of 4.09g of carbon dioxide?

Green plants use light from the Sun to drive photosynthesis. Photosynthesis is a chemical reaction in which water H2O and carbon dioxide CO2 chemically react to form the simple sugar... more
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Organic Chemistry Chemistry Biochemistry Ap Chemistry

09/28/20

What mass of octane is consumed by the reaction of 4.0 of oxygen gas?
A major component of gasoline is octane C8H18 When octane is burned in air, it chemically reacts with oxygen gas O2 to produce carbon dioxide CO2 and water H2O.What mass of octane is consumed by... more
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Organic Chemistry Chemistry Biochemistry Ap Chemistry

09/28/20

How many mL of 1.00 M sulfuric acid are required to neutralize 25.0 mL of 4.00 M NaOH?

How many mL of 1.00 M sulfuric acid are required to neutralize 25.0 mL of 4.00 M NaOH?(start by writing the balanced equation for this acid-base reaction)
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Organic Chemistry Chemistry Biochemistry Ap Chemistry

09/28/20

What is the percent yield of sodium sulfate (142.04 g/mol) from this reaction?
Consider the reaction of 32.18 g of sulfuric acid (98.08 g/mol) with excess sodium hydroxide to produce 37.91 g of sodium sulfate. What is the percent yield of sodium sulfate (142.04 g/mol) from... more
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Organic Chemistry Chemistry Biochemistry Ap Chemistry

09/28/20

Consider the reaction:
Consider the reaction i. Which is the limiting reactant if we start with 114 g of Al (26.98 g/mol) and 186 g of (70.9 g/mol)?ii. How much  (133.34 g/mol) can be made at most from these amounts of... more
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Organic Chemistry Chemistry Biochemistry Ap Chemistry

09/28/20

Determine the mass of water that will be obtained from combustion of 200.g of propane.
Consider the combustion of propane (44.1 g/mol) in the presence of excess oxygen.Determine the mass of water that will be obtained from combustion of 200.g of propane.C3H8 + 5O2 = 4H2O + 3CO2
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09/28/20

Understanding Organometallic Complexes
Which do you think is more likely, the dissociation of a halide from M(CO)nX or the dissociation of H+ from M(CO)nH? Both processes occur; however, one needs coordination from THF.
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Organic Chemistry Chemistry

09/25/20

Understanding Conformational Analysis in the Case of Pentane, Butane and a Particular Naphthalene
Here it goes. Why do you think the energy between a 1,5-Me-Me interaction is lower (3.7 Kcal/mol) than a 1,4-Me-Me interaction in butane (3.1 Kcal/mol)? Why is the energy for a Me-Me interaction in... more
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Organic Chemistry

09/24/20

For chromatographs that display two or more components (spots), how does Rf relate to the polarity of the component?
This is in organic chemistry and the topic is on thin layer chromatography
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Organic Chemistry Math Chemistry Precalculus

09/23/20

question regarding metric measurements
Speculate as to why solutions like milk and orange juice can be purchased in the English unit of measure (gallons, pints, etc) yet other solutions like sodas are only sold in the metric units of... more
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