2,220 Answered Questions for the topic organic chemistry

Organic Chemistry Science Chemistry Biochemistry

05/02/21

hello tutors have incorrectly helped me with chemistry homework question. Please someone help me correctly as soon as possible please

1.) For the reaction C + 2H2 → CH4, how many grams of hydrogen are required to produce 17 moles of methane, CH4 ?Round your answer to the nearest tenth. If you answer is a whole number like 4,... more
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Organic Chemistry Science Chemistry Biochemistry

05/02/21

Hello I have been ignored by tutors please actually help me with my chemistry homework
1.) S   + 6 HNO3 → H2SO4 + 6 NO2 + 2 H2OIn the above equation, how many grams of water can be made when 17.7 moles of HNO3 are consumed?Round your answer to the nearest tenth. If you answer is a... more
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05/01/21

Vapor Pressure of a certain liquid
A certain liquid has a vapor pressure of 92.0 Torr at 23.0 ∘C and 206.0 Torr at 45.0 ∘C.a. Calculate the value of delta H vap for this liquid.b. Calculate the normal boiling point of... more
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05/01/21

Energy required to heat water
At 1 atm, how much energy is required to heat 53.0 g H2O(s) at −22.0 ∘C to H2O(g) at 119.0 ∘C? In KJ.
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Organic Chemistry Science Chemistry Biochemistry

05/01/21

Methane reacts with oxygen according to the following equation. CH2(g) + 2O2(g)   ------->  CO2(g) + 2H2O(l)
Methane reacts with oxygen according to the following equation.CH2(g) + 2O2(g)   ------->      CO2(g) + 2H2O(l)The ff data were obtained from an experiment. Time (min) [CH4] (mol L-1) [CO2]... more
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Organic Chemistry Science Chemistry Actuarial Science

04/30/21

Hi please help me with my homework as soon as possible please I have received no help whatsoever and I am so stressed please help me pleadr
3 Cu + 8HNO3 → 3 Cu(NO3)2  + 2 NO + 4 H2OIn the above equation, how many grams of water can be made when 13.5 moles of HNO3 are consumed? Round your answer to the nearest tenth. If you answer is a... more
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Organic Chemistry Science Chemistry Actuarial Science

04/30/21

Please someone respond and actually help me with my chemistry homework quickly please

1.) 2 NH3 + 3 CuO → 3 Cu + N2 + 3 H2OIn the above equation, how many grams of N2 can be made when 7.7 moles of CuO are consumed?Round your answer to the nearest tenth. If you answer is a whole... more
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Organic Chemistry Science Chemistry Actuarial Science

04/30/21

Hi many tutors have ignored my question but please help me with my chemistry homework as soon as possible please because no one has helped me
3 Cu + 8HNO3 → 3 Cu(NO3)2  + 2 NO + 4 H2OIn the above equation, how many grams of water can be made when 13.5 moles of HNO3 are consumed? Round your answer to the nearest tenth. If you answer is a... more
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Organic Chemistry Science Chemistry Actuarial Science

04/30/21

I know that it is easy to bypass a question but please think about how I actually need real help desperately with my chemistry homework as soon as possible please
1.) 2 NH3 + 3 CuO → 3 Cu + N2 + 3 H2OIn the above equation, how many grams of N2 can be made when 7.7 moles of CuO are consumed?Round your answer to the nearest tenth. If you answer is a whole... more
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Organic Chemistry Science Chemistry Actuarial Science

04/30/21

Please help me because I have needed help with my chemistry homework for many hours

3 Cu + 8HNO3 → 3 Cu(NO3)2  + 2 NO + 4 H2OIn the above equation, how many grams of water can be made when 13.5 moles of HNO3 are consumed? Round your answer to the nearest tenth. If you answer is a... more
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Expert Answers •1
Organic Chemistry Science Chemistry Actuarial Science

04/30/21

I know that it is easy to bypass a question but please think about how I need help desperately with my chemistry homework as soon as possible please
1.) 2 NH3 + 3 CuO → 3 Cu + N2 + 3 H2OIn the above equation, how many grams of N2 can be made when 7.7 moles of CuO are consumed?Round your answer to the nearest tenth. If you answer is a whole... more
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Organic Chemistry Chemistry Moles Chem

04/29/21

Calculate the amount of aniline - in mL - needed for the reaction
A reaction uses 5.00 millimoles of aniline. the molecular weight of aniline is 93.13 g/mol and the density is 1.02 g/mL. Calculate the amount of aniline - in mL - needed for the reaction
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Organic Chemistry Chemistry Biochemistry Chem

04/27/21

Half Reaction: Balance H2O and OH-
When the following half reaction is balanced under basic conditions, what are the coefficients of the species shown? _____SnO32- +  _______H2O   ______SnO22- +  ______OH-In the above half reaction,... more
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Organic Chemistry Chemistry Chemical Engineering Chem

04/27/21

The acid-dissociation constants of HC3H5O3 (aq) and CH3NH3+ (aq) are given in the table above. Which of the following mixtures is a buffer with a pH of approximately 10.5?
Given:HC3H5O3--> Ka: 8.3*10^-4CH3NH3+---> Ka: 2.3*10^-11 The acid-dissociation constants of HC3H5O3 (aq) and CH3NH3+ (aq) are given in the table above. Which of the following mixtures is a... more
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Organic Chemistry Chemistry

04/26/21

find the pH of the following solution
a. 1x10^-3 HCLb. 6x10^-9 Potassium Hydroxide
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Organic Chemistry Chemistry Chem

04/26/21

ASAP Show all workout and answer all parts ( Im just reviewing for AP exams so its not graded, but I want it to help me.
A weak acid, HZ, has a Ka value of 6.52 x 10-5.(a) Write the reaction of HZ with water. (b) Write the equilibrium expression for the reaction of HZ with water.(c) Calculate the pH of a... more
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Organic Chemistry Chemistry

04/26/21

When two He atoms undergo fusion in a star, the resulting element is:
When two He atoms undergo fusion in a star, the resulting element is:a) Hb) Lic) Bed) Hee) all of the above
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Organic Chemistry Chemistry

04/26/21

Calculate the mass of Kr in a 8.50 L cylinder at 98.8 ∘C and 6.05 bar .
I am confused with the part that states "6.05 bar". Does anyone mind explaining furthermore wit this problem?
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Organic Chemistry Chemistry

04/25/21

A 265 gal storage tank contains 88.5 kg methane ( CH4) . If the temperature reaches 42 ∘C, what is the pressure inside the tank?
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Organic Chemistry Chemistry

04/25/21

A mixture of He , N2 , and Ar has a pressure of 12.0 atm at 28.0 °C. If the partial pressure of He is 2381 torr and that of Ar is 2249 mm Hg, what is the partial pressure of N2 ?
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Organic Chemistry Chemistry

04/25/21

A low-pressure weather system comes into the city of Denver. The atmospheric pressure is 715 mmHg. If 78.0% of dry air is nitrogen, what's the partial pressure of nitrogen in low-pressure system?
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Organic Chemistry Chemistry

04/25/21

A certain mass of nitrogen gas occupies a volume of 2.21 L at a pressure of 1.05 atm. At what pressure will the volume of this sample be 4.59 L? Assume constant temperature and ideal behavior.
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04/25/21

Show all workout and answer all parts ( Im just reviewing for AP exams so its not graded, but I want it to help me.
Show all workout and answer all parts ( Im just reviewing for AP exams so its not graded, but I want it to help me.A new weak acid, HG, has been synthesized. The a titration of 0.115g of... more
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Organic Chemistry Chemistry Biochemistry

04/25/21

A sealed container holding 0.0255 L of an ideal gas at 0.983 atm and 67 ∘C is placed into a refrigerator and cooled to 45 ∘C with no change in volume. Calculate the final pressure of the gas.
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Organic Chemistry Chemistry

04/25/21

A sample of oxygen gas initially at 353 K was heated to 407 K. If the volume of the oxygen gas sample at 407 K is 608.4 mL, what was its volume at 353 K?

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