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If a machine does 4.8 x 103 kJ of work after an input of 7.31 x 103 kJ of heat, what is the change in internal energy for the machine?
Your task is to replicate the Crystal structure of H10-2-G3. It is not just a matter of making a cartoon and highlighting side chains. Some of the atoms in the side chains are missing exposing only from CB
when b is added to a solution containing the ions of the other metals metallic A, C,.B. and d are formed. a reacts with 6 m hno3 but d does not select wihch represents the metals arranged in decreasing order as reducing agents
If a water sample has a phosphate concentration of 2.0 x 10-6 M, at what calcium ion level will a precipitate of Ca3(PO4)2 begin to form if the Ksp = 1 x 10-25
Are acetic acid, ethyl alcohol, vinegar, sodium hydroxide, ammonium hydroxide and hydrochloric acid soluble and flammable? Why is it flammable? Why is it soluble? Why not?
The composition of the atmosphere is approximately 80 per cent nitrogen and 20 per cent oxygen by mass. At what height above the surface of the Earth would the atmosphere become 90 per cent nitrogen and 10 per cent oxygen by mass
a solution of 4.93 g of a carbohydrate in 100.0 g of water has a density of 1.017 gml and an osmotic pressure of 3.36
The diluted solution is then placed in a spray bottle for application on the desired surfaces. How many moles of luminol are present in 2.00 L of the diluted spray
Calculate the expected pH of the buffer after the addition of 1.0 mL of 1 M HCl. Remember that you are using 50 ml of the buffer so be sure to calculate the number of moles of acetic acid
What osmotic pressure in atmospheres would you expect for a solution of 0.140M CaCl2 that is separated from pure water by a semipermeable membrane at 310 K?
Depict the complete 3-step mechanism for the hydroboration of 1-octene this means drawing out the three repetitive steps to obtain the trialkyl borane. Comprise arrows indicating electron flow as well as identify any R groups if you use shorthand.
Calculate the standard enthalpy change for the reaction
Explain which balance(s) will give the maximum precision possible for the density measurement? Is there an advantage to utilizing the 0.0001-gbalance for this work. Explain.
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