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Problem- You are interested in manufacturing a diamond from graphite. Burning one mole of graphite in oxygen yields 393.5kJ, whereas burning a mole of diamond (12 grams!) produces 395.4kJ Calculate the amount of heat required to completely convert 1.00 mol of graphite into a diamond. It will help to consider if these burning reactions are endothermic or exothermic (what is the sign of delta H of in these reactions?Should reply all parts for five stars
A patient is given 0.055mg of technetium -99m, a radioactive isotope with a half-life of about 6.0 hours.
A compound X has molecular ion peaks in its mass spectrum at mass 140 and 142, and shows prominent peaks in its IR spectrum at 3150-3000 and 1600 cm^-1.
A mixture of KClO3 and KCl with a mass of 0.950 g was heated to produce O2. After heating, the mass of residue was 0.700 g. Assuming all the KClO3 decomposed to KCl and O2, calculate the mass percent KClO3 in the original mixture.
Enough of a monoprotic acid is dissolved in water to produce a 0.0197 M solution. The PH of the resulting solution is 6.41. Calculate the Ka for the acid.
What is the balanced education and stoichiometric reagents needed with mole calculations of 1 sodium hydroxide pellet(0.075 to 0.095 g) and 0.24 g acetophenone and 0.11 g benzaldehyde
The following quantities of trace gases were found in 1 mL sample of air. Calculate the number of moles of each compound in the sample.
Write the overall reaction, showing how much ATP (Adenosine tri phosphate) can be produced per pentose used also write an equation for the generation of NADPH using ribose as a sole source of carbon?
in order to make a standard solution of ethylene diaminetetraacetic acid pure disodium edta dihydrate can be used as a
Compute ΔS when 1.00 mol of water at 288 K is mixed with 1.00 mol of water at 370 K and the system comes to equilibrium in an adiabatic enclosure. Presume that Cp = 77 J K-1 mol-1 independent of T
The problem gives you- 1-bromo-1-methylcyclohexane and the product is cyclohexanone You have to use two reagents or mechanisms and show an intermediate
Explain an aqueous solution with a pH of10.60 is diluted from 1.0 L to 1.5 L. Explain what is the pH of the diluted solution
Suppose that 1.08 g of rubbing alcohol (C3H8O) evaporates from a 75.0 g aluminum block.If the aluminum block is initially at 25 C, what is the final temperature of the block
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