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A cook wants to heat 1.75 of water from 26.0 to 100.0 If he uses the combustion of natural gas (which is exothermic) to heat the water, how much natural gas will he need to burn? Natural gas produces 49.3 of heat per gram.
The mixture is ignited with a spark and it reacts to form H2O (l)liquid water. determine the temperature of water?
When (R)-2-butanol is treated with TsCl in pyridine,the product formed and Classify the reaction
Calculate the molar concentration of OH- ions in a 0.550 M solution of hypobromite ion (BrO-; Kb=4.0 x 10^-6). What is the pH of this solution?
what mass in grams of hydrogen gas is produced if 20 mol of Zn are added to excess hydrochloric acid according to Zn+2HCl yields ZnCl2+H2?
oleci acid has following compostions : 76.54%C, 12.13%H, 11.33% O. If the experimental molar mass is 282.g/mol, what is the molecular formula of oleic acid?
sucrose solution is allowed to react for 195 minutes then determine the mass of sucrose that is hydrolyzed?
why we call benzene phenyl and not benzyle when one hydrogen is removed because in case of alkanes we name them alkyl on the removal of one hydrogen atom.
The appropriate chemical equation is PCl3(g)+Cl2(g) PCl2 Calculate the new partial pressures after equilibrium is reestablished.
A sample of 0.600 mol of a metal M reacts completely with excess fluorine to form 46.8 g of MF2. (a) How many moles of F are in the sample of MF2 that forms? M + F2 (b) How many grams of M are in this sample of MF2?
What is the molarity of ZnCl2 that forms when 30.0 grams of zinc completely reacts with CuCl according to the following reaction? Assume a final volume of 275.
A 0.1000 m aqueous solution of a weak acid, HA, is 1.5% ionized. At what temperature does it freeze? Kf for water = 1.86°C/m.
Iron has a body-centered cubic unit cell, and a density of 7.87 g/cm3. Calculate the edge length of the unit cell, in pm.
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