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when calcium carbonate is added to hydrochloric acid, calcium chloride, carbon dioxide, and water are Produced.
CaCO3(s)+2HCl(aq)>>>>>>>CaCl2(aq)+H20 (l)+ CO2 (g)
how many grams of calcium chloride will be Produced when 26 g of calcium carbonate are combined with 13.0 g of hydrochloric acid. Which reactant is in excess and how many grams of this reactant will remain after the reaction is complete?
During the late 1800's, hard rock miners replaced candles with carbide lamps for work in mine shafts. The lamps worked by dripping water onto calcium carbide that generated acetylene gas (H2C2) that was burned
Draw the structural formula for ethanol, 2-propanol and 2-methyl2-propanol. Write the reaction between sodium bicarbonate and benzoic acid.
Oxalic acid, H2C2O4 has acid dissociation constants Ka1 = 5.9 x 102 and Ka2 = 6.4 x 105. What is the pH after 20.00 mL of 0.0500 M NaOH is added to 5.00 mL of 0.2000 M H2SO3.
An aqueous solution containing 34.1 g of an unknown molecular (nonelectrolyte) compound in 141.3 g of water was found to have a freezing point of -1.5 degrees C. Calculate the molar mass of the unknown compound.
Calculate the max wavelength of light (in nm) required to ionize a single lithium atom, knowing that the ionization energy of lithium is 520 kJ/mol
What are the values of [H+], [H2PO3-], and [HPO32-] in a 3.0 M solution of H3PO3? What is the pH of the solution?
Iron has a reported average atomic mass of 55.85 amu. If iron has two isotopes, one of which has 29 neutrons and an isotopic abundance of 57.50%, what is the mass of the other isotope?
Calculate the hydronium ion concentration and the pH after the addition of .25mL of .10 M HCl to each one. What accounts for the difference in hydronium ion concentrations? Explain this based on equilibrium concepts.
what is the mass in grams in 2.28 mol of each of the following: a) N2, b)SO3, c)C3H6O3, d)Mg(HCO3)2, e)SF6. Please use significant figures.
In an Fe and Cr voltaic cell where the Fe is in Fe(NO3)2 and the Cr is in Cr(NO3)3; calculate the cell potential at 25 C if the initial concentration in the half cells are as follows [Cr 3+] = 2.45M and [Fe 2+] = .75 M
One cubic meter of ideal diatomic gas is expand from 150 degrees, 8 bar isothermally to the final volume. The gas is then cooled at constant volume until 50 degrees and 3 bar
Determine the normal boiling point of a substance whose vapor pressure is 55.1 mm Hg at 35°C and has a Hvap of 32 .1 kJ/mol.
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