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Consider the hydrogen cyanide molecule, HCN. If we orient this linear molecule so it is along the x axis, what orbitals on carbon are involved in the formation of the sp hybrid?
Some recent media attention about oyster culture and restoration in the Chesapeake Bay and other coastal areas intrigued some environmentally minded citizens in Chincoteague Island,
a solution of 0.64 grams of adrenaline in 36.0 grams of CCl4 elevates the boiling point by 0.49 celsius. what is the molar mass of adrenaline?
A cylinder with a piston contains 897 ml of dry oxygen at a pressure of 582 mm Hg and a temperature of 327 K. If the temperature is reduced to 286 K and the pressure increased to 628 mm Hg what is the new volume ?
A biological sample was submitted to you lab for a nickel assay. Assume you are assaying a 2.06 g tissue sample for the presence or absence of nickel at the 0.1ppb (m/m) level
Chlorine can be prepared in the laboratory by the reaction of manganese dioxide with hydrochloric acid, HCl(aq)
Evaporating sweat cools the body because evaporation is endothermic and absorbs 2.44 per gram of water evaporated. Estimate the mass of water that must evaporate from the skin to cool a body by 0.30
The cup is a volume widely used by cooks in the U.S. One cup is equivalent to 237 cm^3. If 1 cup of olive oil has mass of 216 g, what is the density of olive oil in g/cm^3?
A sample of neon gas used in a neon sign occupies a volume of 1.50 L at a pressure of 630 torr. Calculate the volume of the gas if the pressure in the glass tube of the sign is 793 torr.
hours in the presence of a certain concentration of an acid catalyst, what is the half-life for this reaction under the same conditionns? (Rate = k[C12H22O11]
What volume of 0.300 M CaCl2 is needed to prepare 240. mL of a solution which is 0.100 M in chloride ion.
Choose the answer in which the oxide with the formula given is correctly characterized as ionic or molecular.
how many grams of sugar are in 15.0% concentrated solution with a total mass 125 g?
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