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1) How many ml of 1.00M H2SO4 solution are required to neutralize 2.10g of KOH 2) What is the molarity of Oxalic acid (H2C2O4) solution if 22.50 ml of this solution requires 35.72 ml of 0.198M NaOH for complete neutralization? 3) What volume of 0.200M K2Cr2O7 will be required to oxidize 4.0g of H2AsO3? 14H+ + Cr2O72- + 3H2AsO3 .................> 2Cr3+ + 3H3AsO4
How many grams of sodium ion Na+ are in 2.50 g toothpaste. A toothpaste contains 0.24 by mass sodium fluoride used to prevent dental caries and 0.30 by mass triclosan , a preservative and antigingivitis agent
Write the balanced molecular, ionic and net ionic equations for the reaction between magnesium and cobalt(II) sulfate. (b) What is oxidized and what is reduced in the reaction?
Suppose that coal of density 1.5 g/cm3 is pure carbon. (It is, in fact, much more complicated, but this is a reasonable first approximation.)
Calculate the [H3O+] concentration in 0.45 M solution of barbituric acid, HC4H3N2O3. Ka for barbituric acid is 1.0 X10 ^-5.
Calculate the electrical work done buy a dry cell in 1.00 H if it produces a steady current of 0.70 A at 1.5 V. Answer expressed in jeules.
A gas at 30 degrees C and 600 mmHg occupies a volume of 412 cm^3. What is the volume in cm^3 that the gas will occupy if the temperature is lowered to -30 degrees C at the same pressure
Imagine you want to determine the binding constant for a reaction. You know you will need to generate data to calculate the binding constant.
How many kilograms of chalcopyrite must be mined to obtain 290. g of pure Cu ?
A 200 MHz proton NMR instrument is used to obtain a ^13C spectrum. calculate the energy difference that will develop between teh two spin states of the ^13C nuclei.
Assuming the mixture has the same specific heat (4.184J/goC) and density (1.00 g/cm3) as water, calculate the heat (in J) transferred to the surroundings, qsurr.
Iron (III) oxide reacts with carbon monoxide to form elemental iron and carbon dioxide. How many grams of CO are required to react with 2.78 grams of Fe2O3?
calculate the mass of water that must be added to 0.45 mol of glucose to make a solution of 15.0 percent by mass. the molar mass of glucose is 180 g/mol
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