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The label on a bottle of concentrated HCl says the contents are 36% HCl by mass and have a density of 1.179 g/mL. What is the Molarity of the Conc. HCl. . The conc HCl was diluted 50 % with water, to 721 mL.which was then reacted with 35.4 g of Al. How many grams of hydrogen can be theoretically formed?. How much of which reactant will be left after the reaction is over?
Combustion analysis of toluene, a common organic solvent, gives 4.12mg of {\rm{CO}}_2 and 0.959mg of {\rm{H}}_2 {\rm{O}}. If the compound contains only carbon and hydrogen, what is its empirical formula
What percent of the hydrogen peroxide has been decomposed in mixture of (0.10M KI = 15.0mL, H2O= 35.0 mL and 3% hydrogen peroxide= 10.0 mL) when 20.0 mL of O2 gas has been evolved
List all the ionic species present (before any solution occurs) when the following solutions are mixed together: Ni(NOsub3)sub2(aq) and CaClsub2(aq)
What is the sum of the charges on alanine, aspartic acid, and lysine? Describe how you could use salt solutions that contain cations to control the interaction between the stationary phase and the amino acids
The human body obtains 1091 kJ from a candy bar. If this energy were used to vaporize water at 100°C, how much water in liters could be vaporized? (Assume that the density of water is 1.0 g/mL.)
Calculate the hydrogen Ion concentration, in moles per liter, for solutions with each of the following pH values.
rewrite the equation so heat of reaction (delta H) equals deltaHf for 4PCl3 (g) yields p4(s) + 6Cl2 (g) Values for delta HF in Kj/mol are:
Mount Whitney in California is the highest point in the lower 48 states and is within 150 miles of the lowest place in North America. The normal pressure at the summit is 440mm Hg.
Deduce the structure of the molecule with the molecular formula C3H6 with a C13 NMR delta peak value of 27.8
Calculate the number of moles of ions produced when one mole of Co(NH3)4Cl3 is dissolved in water.
The molar solubility of magnesium carbonate is 1.8 ? 10-4 mol/L. What is Ksp for this compound
Draw oxygen-binding curves for crocodile hemoglobin in the presence and absence of bicarbonate. Which conditions increase the p50 value for crocodile hemoglobin? What does this tell you about the oxygen-binding affinity of hemoglobin under those c..
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