2,220 Answered Questions for the topic organic chemistry

Organic Chemistry Science Chemistry Physics

09/27/21

Chem 105, Please help! super confused and lost on these!
Calculate the volume of 0.550-M NaOH solution needed to completely neutralize 98.3 mL of a 0.630-M solution of the monoprotic acid HNO3. 80.96 mL of a solution of the acid H2C2O4 is... more
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Organic Chemistry Science Chemistry

09/24/21

Chemistry help!

For the tetrahedral molecule, silicon tetrachloride, SiCl4(s), write the condensed electron configuration of a lone silicon atom, predict the hybridization in the molecule, and write an electron... more
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Organic Chemistry Chemistry

09/24/21

question about chemisrty
What is the net ionic equation of the reaction of ZnCl2 withNaOH?What is the net ionic equation of the reaction of MgSO4 with Sr(NO3)2?please I don't know how to do this help me and use the... more
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Organic Chemistry Chemistry

09/24/21

chemistry problem
You carefully weigh out 12.00 g of CaCO3 powder and add it to 48.60 g of HCl solution. You notice bubbles as a reaction takes place. You then weigh the resulting solution and find that it has a... more
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Organic Chemistry Chemistry

09/23/21

question about chemistry
When solutions of silver nitrate and calcium chloride are mixed, silver chloride precipitates out of solution according to the equation2AgNO3(aq)+CaCl2(aq)→2AgCl(s)+Ca(NO3)2(aq)1.What mass of... more
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Organic Chemistry Chemistry

09/23/21

When there is going to be a frost in Florida, farmers will spray their crops with water before the frost hits thereby preventing the fruit from freezing. Explain why this helps to save the fruit.

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Organic Chemistry Chemistry

09/23/21

If forming new bonds releases energy, how can a reaction ever be endothermic?
Need help with this question.
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Organic Chemistry Chemistry

09/23/21

chemistry problem
1.28g H2 is allowed to react with 10.5g N2 , producing 2.96g NH3? What is the theoretical yield for this reaction under the given conditions? and What is the percent yield for this reaction under... more
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Organic Chemistry Chemistry

09/23/21

Match the following statements to the correct answer
An element (or group of atoms) that has fewer electrons than protons. An element (or group of atoms) that has more electrons than protons. The type of bonds that NaOH contain.  In the compound... more
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Organic Chemistry

09/20/21

Chemistry Grade 12
The following reaction shows the combustion process of ethyne:a H2C º CH2(g) + b O2(g) ® c CO2(g)) + d H2(g) DH = - 1300 kJ/mol
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Organic Chemistry Biology Chemistry Biochemistry

09/18/21

Which ethical rule(s) or document(s) were responsible for required elements to the ICF?

Required elements of the ICF are a direct result of the various ethical rules and documents that have been established by the US government. Which ethical rule(s) or document(s) were responsible... more
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Organic Chemistry Biology Chemistry Biochemistry

09/18/21

Adding a statement that the clinical trial is Research was a direct result of the Declaration of Helsinki. Group of answer choices True False
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Organic Chemistry Biology Chemistry Biochemistry

09/18/21

Adding the funding source required element was the direct result of the Declaration of Helsinki. Group of answer choices True False
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Organic Chemistry Chemistry

09/17/21

Pieces of potassium (Φ = 3.68 ×× 10–19 J) and sodium (Φ = 4.41 ×× 10–19 J) metal are exposed to radiation of wavelength 350.0 nm.
Pieces of potassium (Φ = 3.68 ×× 10–19 J) and sodium (Φ = 4.41 ×× 10–19 J) metal are exposed to radiation of wavelength 350.0 nm.What is the velocity of the electrons from potassium? What is the... more
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Organic Chemistry Chemistry

09/16/21

Explain why CH3Ch2NHCh3 has a higher boiling point than (CH3)3N even though they have the same moloecular weight

Explain why CH3Ch2NHCh3 has a higher boiling point than (CH3)3N even though they have the same moloecular weight
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Organic Chemistry Chemistry

09/16/21

Starting with 100 mL of acetone calculate the theoretical yield of product and grams ( density of acetone = .791g/mol ; molar mass of acetone =58.09 g of moles molar mass of product is 98.16g/mol
C3H6O- —catalytic NaOH—>C6H10O + H2OStarting with 100 mL of acetone calculate the theoretical yield of product and grams ( density of acetone = .791g/mol ; molar mass of acetone =58.09 g of... more
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Organic Chemistry Chemistry

09/15/21

Starting with 55.2 g of acetylene find the theoretical yield in grams of CO2
2H-C=CH (g) + 5 O2(g) —> 4 CO2 (g) + 2H2O Starting with 55.2 g of acetylene find the theoretical yield in grams of CO2 (molar mass C2H =26.04g/mol; molar mass of CO2 = 44.02)What is the yield of... more
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Organic Chemistry Chemistry

09/15/21

Given .72 mole of oxygen gas how many mole of water can form

2H-C=CH (g) + 5 O2(g) —> 4 CO2 (g) + 2H2OGiven 0.72 mole of oxygen gas how many mole of water can form?
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Organic Chemistry

09/13/21

Can you help me with Chemistry

The average body temperature of an adult in good health is 98.6 F.Convert this temperature to degrees Celsius. Round your answer to 3 significant digits.
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Organic Chemistry Math Chemistry Biochemistry

09/12/21

Recall Planck's constant equals
Recall Planck's constant equals 6.63 × 10−34 J·s and the speed of light is 3.00 × 108 m/s. Calculate the wavelength (in nm) of a photon emitted by a hydrogen atom when its electron drops from... more
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Organic Chemistry Math Chemistry Biochemistry

09/12/21

Consider the following energy levels of a hypothetical atom:
Consider the following energy levels of a hypothetical atom:E4 −1.51 × 10−19 JE3 −7.11 × 10−19 JE2 −1.25 × 10−18 JE1 −1.75 × 10−18 J(a) What is the wavelength of the photon needed to excite an... more
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Organic Chemistry Math Chemistry Biochemistry

09/12/21

What is the wavelength?
(a) What is the wavelength (in nm) of radiation that has an energy content of 8.01 × 103 kJ/mol?(b) In which region of the electromagnetic spectrum is this radiation found?
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Organic Chemistry Math Chemistry Biochemistry

09/12/21

What is the frequency?
What is the frequency (in reciprocal seconds) of electromagnetic radiation with a wavelength of 1.39 cm?Enter answer in scientific notation____ x 10----s^-1
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Organic Chemistry Math Chemistry Biochemistry

09/12/21

What is the Wavelength? - 2
Help with this question. What is the wavelength? What is the wavelength in meters of an electromagnetic wave whose frequency is 2.07 x 10^12 s^-1?
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Organic Chemistry Chemistry Biochemistry

09/12/21

Chemical kinetics question

1) The hydrolysis of sucrose (C12H22O11) into glucose and fructose in acidic water has a rate constant of 1.8 x 10-4 s-1 at 25oC. Experimentally, it is found that the rate of reaction only depends... more
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