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The temperature of 335g of water changed from 24.5°C to 26.4°C. how much heat did this sample absorb? c for water=4.18 J/g°C
what is the expected freezing point of a 0.50 m solution of li2so4 in water? kf for water is
what fators are generally responsible for the variaion in the base strength of nitrogen
Calculate the mixing ratio (ppbv) of NO2. Assume T=20 degrees Celsius = 293 K; P = Atmospheric pressure. MW of NO2 = 44g/mol
Draw newman projections of two eclipsed as well as two staggered conformations of n-butane and place them on the potential energy diagram given below according to their stability. Notice that the eclipsed and staggered/anti conformations aren't is..
A 1.0 M Na2SO4 solution is slowly added to 10 mL of a solution that is .20 M in Ca^2+ and .30 M in Ag^+. Which compound will precipitate first: CaSO4 Ksp= 2.4 *10^-5 ,Ksp for Ag2SO4 is 1.5*10^-5. How much Na2SO4 solution must be added to initiate ..
milk of magnesia is a suspension of magnesium hydroxide in water. a common medicine it is often used as an antacid
Explain what is the molarity of a solution containing 5.035 grams of FeCl 3 in enough water to make 500mL of solution
Write a chemical equation representing the second ionization energy for lithium. Use e- as the symbol for an electron.
Enzyme labeling can be used to map the structure of the active site of an enzyme using an affinity label, a molecule that is structurally similar to the substrate
Draw the product that is formed when 1-pentyne is treated with an excess of hydrogen gas and a nickel catalyst
A solution formed by mixing 11.0 ml of 0.110 M HBr with 25.0 Ml of 0.190 M HCl. what is the ph of the strong acid?
Calculate the temperature of boiling water at an elevation of 6000ft (2000m) given that the atmospheric pressure is 0.8atm. Assume delta H_vap is independent of T.
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