How much boiling water would you need
How much boiling water would you need in order to raise the bath to body temperature (about 37)? Assume that no heat is transferred to the surrounding environment.
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In terms of kinetic molecular theory, explain why pumping air into a collapsed soccer ball causes the ball to increase in size and become rigid.
Determine the weight in grams of sodium dihydrogen phosphate (NaH2PO4.H2O; FW = 138.01) and disodium hydrogen phosphate (Na2HPO4; FW = 141.98) needed to prepare 1 L of a standard buffer at pH 7.00 with a total phosphate concentration of 0.200 M.
An aqueous solution is prepared by diluting 3.30 mL acetone,CH3COCH3, (d=0.789 g/ mL) with water to final volume of 75.0 mL. The density of the solutionis 0.993 g/mL.
When potassium cyanide (KCN) reacts with acids, a deadly poisonous gas, hydrogen cyanide (HCN), is given off. If a sample of 0.228 g of KCN is treated with an excess of HCl, calculate the amount of HCN formed, in grams.
Draw the structure of the product you would expect from thereaction of benzaldehyde and acetophenone with base. Suggest anyby-products of this reaction.
Consider a 0.05-mm thick, 500 mm2 piece of aluminum foil. How many unit cells exist in the foil? Calculate the mass of each unit cell using density of aluminum of 2.71 g/cm3.
Ammonia NH3 with Kb = 1.8 x 10^05 is added to 100 mL of waterat room temperature and the vapor pressure of water above the soultion drops to P = 0.03 atm.
Calculate the number of molecules of water in a swimming pool which is 40.0 m in length, 20.0 m in width, and 5.00 m in depth. Assume the density of water is 1.00 g/ cm3.
What are the relative activating properties of amino and acetamido groups in electrophilic aromatic substitution reactions? Mainly in bromation of aromatics.
Careful measurements of an ideal gas in a closed, constant volume container indicate that the pressure of the gas is 8.80 atm at 41.3 G0 and 11.33 atm at a temperature of 90.1 G0.
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