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Formic acid, HCOOH, is a weak electrolyte What solute particles are present in an aqueous solution of this compound? Write the chemical equation for the ionization of HCOOH.
When carbon is burned in air, it reacts with oxygen to form carbon dioxide. When 27.6 g of carbon were burned in the presence of 87.2 g of oxygen, 13.6 g of oxygen remained unreacted. What mass of carbon dioxide was produced?
Depict the structural formula for the following compounds. Must include all the CH-CH3, etc. details a) 2-methoxy-2-methylpropane
If the endpoint is surpassed in the back-titration with NaOH, will the reported amount of antacid in the sample be too high or too low?
Calculate a rough value of the concentration of OH- ion, [OH-], in the saturated solution.The approximate value of the Ksp for calcium hydroxide is 6.510?6
The mercury in the arm attached to the gas is 15.8 cm higher than in the one open to the atmosphere atmospheric pressure is 0.971 atm Express answer in three significant figures
The flask revealed here contains 10.0mL of HCL as well as a few drops of phenolphthalein indicator. The burette contains 0.120 M NaOH.
Calculate the equilibrium constants of the dissociation and the standard enthalpy of dissociation at the mean temperature.
What mass of CO2 will be produced when 100.0 g of C8H18 react completely in the equation? 2C8H18 + 25O2 = 16CO2 + 18H2O
a) Write the balance equation for the reaction. b) How many moles of O2 are needed to completly react with 4.0 mol of C2H6O? c) If a car produces 88 g of CO2, how many grams of O2 are used up in the reation
All living things contain carbon. Most of this carbon is stable carbon-12. Nevertheless, a small percentage will be carbon-14, a radioactive isotope of carbon that decays with time. As living things eat and breathe, carbon is constantly recycled a..
Determine how you would make a 100ppb solution of riboflavin from a 50mg/L stock solution. Do the same for preparation of a 500ppb solution from a 50mg/L stock solution
Suppose that the atomic mass unit (amu) had been defined as one-eighth of the average mass of an atom of sodium instead of one-twelfth of the mass of an atom of carbon-12. What would the average atomic mass of magnesium be on this new scale
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