Neutralize the sulfuric acid spill
Sodium carbonate () is used to neutralize the sulfuric acid spill. How many kilograms of sodium carbonate must be added to neutralize 5.04×103 of sulfuric acid solution?
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How many kilocal are required to increase the temperature of 15.6 g of iron from 122 °C to 355°C? The specific heat of iron is 0.450 J/g °C.
If solid PbCl2 and PbF2 are placed in equal amounts of water in seperate beakers, in which beaker is the concentration of Pb+3 greater? Equilibrium constants for these solids dissolving water are as follos: K=1.7x10^-5 and K=3.7x10^-8
In orthogonal turnning of a bar of 100mm diameter with feed of 0.25mm/rev depth of cut 0f 4mm and cutting velocity 90m/min it is observed that the main (tangential) cutting force is perpendicular to the friction force acting at the chip-tool interfac
The molar enthapy of fusion for water is 6.008 kJ/mol. Calculate the molar enthapy of vaporization of a substance if 0.652 mol of the substance absorbes 6.411 kJ when it melts
In a reaction, 30.3 g of chromium(III) oxide reacts with 10.8 g of aluminum to produce chromium and aluminum oxide. If 20.7 g of chromium is produced, what mass of aluminum oxide is produced?
Calculate the free energy at 25 for the nonstandard conditions at point B where the reaction quotient Q is 3.58*10^9 . Express your answer numerically in kilojoules per mole.
Pure aluminum is being poured into a sand mold. The metal level in the pouring basin is 25.4cm above the metal level in the mold, and the runner is circular with a 1.016cm diameter
A voltaic cell is constructed by immersing a strip of sillver metal in a 1.0 MAgNO3 solution and a strip of cadmium metal in a 1.0M Cd(NO3)2 solution. The circut is completed by a wire and a salt bridge in the usual way. a. Write the balanced over
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