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At what pressure would a sample of gas occupy 6.56 L if it occupies 3.24 L at 4.81 atm? (Assume constant temperature.)
The elemental mass percent composition of malonic acid is 34.63% C, 3.87% H, and 61.50% O. Determine the empirical formula of malonic acid. Express your answer as a chemical formula.
The Adenine is a nitrogen-containing compound found in DNA and RNA. Suppose adenine has a composition of 44.5% C, 3.70% H, and 51.8% N, and a molar mass of about 135 g, define what is the molecular formula of adenine
calculate the speed of the reaction when the concentration of N2O5 is of 0.0100 M b) How long, in minutes, to wait before the N2O2 concentration is reduced from 0.500M to 0.200M
assume your are given a brain which weighs 1.45 kg andcontains 7.70e10 cells. if each cell was a cube and had a
determine the trend in sizes of the ions o2-n3- f- and also explain why does the trend exist? also describe which of
"Washing soda" (sodium carbonate) may be used to "soften" water by removal of certain ions that would otherwise react with common soaps. When the "hardiness" is due to calcium ion, the "softening" process may be represented as
Calculate the quantity of heat energy in kilocalories evolved when 75 g of liquid water forms ice at 0 0C. (heat of solidification = 80 cal/g).
Calculate the lower heating value of the Brookeville Seam coal with the analysis given below with 10, 20, 30, 40, and 50% moisture contents . Comment on the percentage of the heat loss based on the gross or high heating value of the fuel in using ..
Benzene is a organic solvent with the formula, The volume occupied by 1 micromole of liquid benzene and the volume occupied by 1 megamole of benzene as a vapor at STP (assume an ideal gas)
what happens to the mass of an icecube when we melt it an open
For the reaction CH4+202=2H2O+CO2, calculate the percent yield of carbon dioxide if 1000. g of methane react with excess oxygen to produce 2300. g of carbon dioxide.
Draw the structure of the following molecules, provide shape and electron count - What do you mean by the term ‘ Pseudohalogen'?
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