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If 230 g of water is heated from 24°C to 100°C, how much energy would have been consumed?
The decomposition of nitric oxide NO to N2 and O2 is second order with a rate constant of 0.0796 M^-1 S^-1 at 737 C and 0.0815 M^-1 S^-1 at 947 C. Calculate the activation energy.
For a particular amount of gas at a constant volume, the pressure is 4.75 atm at 56.0 oC.
Obtain an expression for G associated with the movement of 4 H+ from a region of higher concentration outside the membrane to one of lower concentration inside.
Copper Metal was deposited at the cathode of an electrolytic cell from a solution of Cu(NO3)2. The initial mass of the cathode was 16.4831 g and the final mass was 16.7569 g after 10.0 minutes using a current of 1.44 amperes.
A sample of hard water contains 20mg of Ca++ ions per liter. Explain how many milliequivalents of Na2Co3 would be required to soften 1 liter of sample
a) what is the new volume if 0.500 mol of O2 gas is added? b) Oxygen is released until the volume is 10.0 L. How many moles of O2 are removed? c) What is the volume after 4.00 g of He is added to the 4.80 g of O2 gas in the container
Nitrogen and oxygen combine to form several different nitrogen oxides. In one case 8.4 g of nitrogen reacted completely with 4.8 g of oxygen. In another case, 4.2 g of nitrogen reacted with 9.6 g of oxygen. which pair of nitrogen oxidizes is consi..
Determine the empirical formula and the molecular formula of a compound that has the compostion of 80.0% C and 20.0% H. The molecular mass is 240.6 g.
Which of the following compounds would produce a single product when treated with Cl2 in the presence of ultraviolet radiation and why A) butane B) 2-methylpropane C) 2,2,-dimethylpropane D) All would produce multiple products
Radioactive isotope Na-24 has a half life of 15 hours. What fraction of a sample of Na-24 will remain after 45 hours?
determine what is the atomic radius of each atom that composes it if a simple cubic unit cell has if the length 0.36
The water level inside the tube was 10 cm higher than the water level outside the tube. He ignored the difference and proceeded with his calculations.
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