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In a molecule of H2S, the four electron groups around the sulfur atom are arranged in tetrahedral geometry. However, the shape of the molecule is bent. Why does the shape of the molecule have a different name from the name of the electron group geometry
A graduated cylinder contains 155 mL of water. A 15.0 g piece of iron (density = 7.86 ) and a 20.0 g piece of lead are added. What is the new water level in the cylinder?
B)if water is added to 150ml of a 1.2M KCL solutionuntil the volume is 150 ml what is the new molarity?
Write a balanced chemical equation for this reaction when Ferrophosphorus reacts with pyrite making iron (ll) sulfide and a compound that is
a student placed in an unknown sample plate thin layer chromatography and develops in dichloromethane as solvent. only there is a spot whose Rf is 0.95. This indicates that the unknown material is a pure compound
Identifying an unknown hydrocarbon, Is it possible to identify what the hydrocarbon is with just knowing the volume of it (9.61 ml), the mass (7.669 g/ml), density (0.798 g/ml)?
Calculate the concentration of the NaOH solution. The reaction between HCl and NaOH is as follows: HCl + NaOH -> NaCL + H20
portion of that solution is diluted by adding 165 mL of water. What is the final concentration? Assume the volumes are additive.
how many N2 molecules can be produced after the explosion of 2.37 kg of NH4NO3? (Molar mass of NH4NO3 is 80.06 g/mol.)
What is the pH of the solution created by combining 2.00 mL of the 0.10 M base with 8.00 mL of the 0.10 M acid?
A solution is prepared by mixing 50.0 mL of 0.20 M Pb(NO3)2 with 50.0 mL of 1.5 M KCl. Calculate the concentrations of Pb2+ and Cl - at equilibrium. [Ksp for PbCl2(s) is 1.6 10-5.]
draw all the possible steroisomers of 1,2,3,4,5-pentachloropetane and assign configurations to all stereogenic centers. Label each as either optically
A famous foot race in California starts from the bottom of Death Valley (100 m below sea level) and finishes at the top of Mt. Whitney (4300 m above sea level). what percentage does the oxygen number density decrease between the start and the finis..
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