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You drive 7.50 km in a straight line in a direction 20 degrees east of North. Find the distances you would have to drive straight East and then straight North to arrive at the same point. This is the equivalent to finding the components of the displacement along the East and North directions. Show that you still arrive at the same point if the East and North legs are reversed in order.
Problem- A vessel contains 100 lb moles of hydrocrabon gas. Calculate the standard cubic feet of gas in the vessel.
If 72.4 kJ of heat is supplied to a 852 g block of metal, the temperature of the metal increases by 9.6°C. Calculate the specific heat capacity of the metal in J/g·°C.
Depict the scheme of glycolysis. Presume that glucose is labeled by C14 at its C-3 atom. Explain at what position of pyruvate molecule does the label take place after glycolysis?
how many grams of vinegar are required to react completely with 25.0g of baking soda.
Use resonance forms to show the delocalization (over four carbon atoms) of the negative charge of the benzyl and anion
If the surface temperature of Venus is 460 *C, define what is the wavelength maximum it emits as a black body radiator. Is this in the infrared region
Calculate the molar mass of maltose (which is not an ionic compound). (b) The density of the solution is 1.014 g/mL. Calculate the osmotic pressure of the solution.
Suppose a reaction has a standard Gibbs-free energy of 2.20 kJ/mol, calculate the relative ratio of product to reactant.
The freezing point depression constant of water is -1.86 degrees C/m. If 7.50 g NaCl is dissolved in 45.0 g H2O, the freezing point is changed by -9.71 degrees C. Calculate the van't Hoff factor for NaCl.
an ethylene glycol solution contains 21.2 g of ethylene glycol in 85.4 ml of water. compute the freezing point and
Sodium lauryl sulfate can be prepared by replacing chlorosulfonic acid with another reagent. What could be used? Show the equations.
15.0 mL of 0.50 M HCl is added to a 100.-mL sample of 0.496 M HNO2 (Ka for HNO2 = 4.0 × 10-4). What is the equilibrium concentration of NO2- ions?
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