Homework Help for Chemistry

Are the Muslim scientist success in their aim?

What is the three goals of Muslim scientist?

Define chemistry ?

What is isotope? Give examples 

1. Write difference between mixture and compound 
2.  

Draw the curved arrows and the resulting resonance 

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What are some easy to remember methods or tricks to go by when drawing resulting products for given reactions in organic chemistry, and providing accurate stereochemistry and regiochemistry in the process?

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Calculate the maximum pressure, net work output, and thermal efficiency for an ideal Ericsson cycle with air as the working fluid, given that the initial state of air is at 120 kPa and 27°C, the heat rejected during isothermal compression is 150 kJ/kg, and the temperature at the end of constant-pressure heat addition is 1200 K.

58. Saccharin, an artificial sweetener, has the formula

CHNOS. Suppose you have a sample of a saccharin-

containing sweetener with a mass of 0.2140 g. After decom

position to free the sulfur and convert it to the SO, ion,

the sulfate ion is trapped as water-insoluble BaSO4 (see

Figure 4.8). The quantity of BaSO, obtained is 0.2070

g.

What is the mass percent of saccharin in the sample of

sweetener?

1. Systematically deduce the structure of the organic compound from the NMR data. Assign the peaks to the structure you arrived. Molecular formula C6H5NCI2; 1H NMR 7.2 (d, 2H, J=7.0 Hz), 6.6 (t, 1H, J = 7.0 Hz), 4.4 (broad singlet, 2H, D20 exchangeable); 13C NMR 140, 128, 119.5, 118, ppm. Hint IR shows two peaks at 3432 and 3313 cm.

What is polynomial 

Draw the structure of the following carboxylic acid, 3,3-dimethylbutanoic acid

Explain and describe the  chemistry and its branches?