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A large sport utility vehicle has a mass of 2500kg . Calculate the mass of CO2 emitted into the atmosphere upon accelerating the SUV from 0 to 67.0mph . Assume that the required energy comes from the combustion of octane with 30% efficiency. (Hint: Use KE = 1/2\,mv^2 to calculate the kinetic energy required for the acceleration.)
How is HCl a base if it has no OH ions in is formula to omit when dissolved? Where does it's O come from
when 100g Mg3N2 reacts with 75.0g H20, 15.0g of NH3 is formed. What is the percent yield? Mg3N2+6H2O-->3Mg(OH)2+2NH3
If 15 amino acids were linked together by condensation and elimination of water, how many water molecules would be lost and how many new peptide bonds would be formed.
The compound K2SiO 3 • χH2O is a hydrated crystal. It is analyzed for percent water in a procedure similar to the laboratory assignment with barium chloride
Insoluble BaCrO4 precipitates when solutions of BaCl2 and Na2CrO4 are mixed. What is the maximum mass of BaCrO4 (MM=253 gmol¯1 ), in g
what is the pressure of dry H2 in mmHg. and in atm. Assuming the ideal gas behavior, how many moles of H2 gas were collected
Predict the magnetic susceptibilities (para- or diamagnetic) and determine the number of unpaired electrons of each of the following complexes (consider C2O42- and H2O as strong field ligands which cause a large splitting of the d-orbitals).
A human body contains 6 liters of blood. The hemoglobin content of blood is about 15.5g/100 mL of blood. The approximate hemoglobin molecular weight is 64,500g/mol. How many moles of hemoglobin are present in a typical adult
A metal sample weighing 71.9 g and at a temperature of 100.0 degrees C was placed in 41.0 g of water in a calorimeter at 24.5 degrees C. AT equilibrium the temperature of the water and metal was 35.0 degrees C. What was delta t for the water?
at constant volume, the initial pressure of a substance is 0.63 atm and the initial temperature is 283 k.calculate the pressure of the substance at 295 k.
How many moles of the nonelectrolyte, propylene glycol(C3H8O2) should be dissolved in 800.0g of water to prepare a solution whose freezing point is -3.73C? For water, Kfis 1.86C m-1 and Kb is 0.51C m-1.
What mass of NaOH is needed to precipitate the Cd^{2+} ions from 39.0 mL of 0.550 M Cd(NO3)2 solution?
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