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If it takes 526 J of energy to warm 7.40 grams of water by 17 degrees Celsius, how much energy would be needed to warm 7.40 grams of water by 55 degrees Celsius?
Name 4 properties of a compound that is directly influenced by the polarity of the compond. And state the 2 most important factors that affect the
25.0ml of a 4.21M HCL solution at 25.2C and 50.0ml of a 2.2M NaOH solution at 25.2C are reacted together to give a temperature of 44.1C.
What substances are present after the reaction is over? (Hint: Write a balanced chemical equation for the reaction first.) How many grams of water are formed?
What fraction of the total residues are branch points? B) How many reducing ends does this amylopectin have?
What is the probability that the particle is in the left quarter of the box for n=1?, n=2?, n=3?
Explain what it means that the atomic mass of naturally occurring Ag, is a mixture of its two isotopes forms, is 107.868 u.
What is the average mass(in grams) of a flourine atom if Flourine has an atomic weight of 18.998 amu
Ozone molecules in the stratosphere absorb much of the harmful radiation from the sun. How many ozone molecules are present in 1.00 L of air under the stratospheric ozone conditions of 227 K temperature and 1.89 * 10^-3 atm pressure
How much heat in kilojoules is required to warm 10.0 g of ice, initially at -10.0^\circ C, to steam at 110^\circ C. The heat capacity of ice is 2.09 {\rm J}/{\rm g} ^\circ {\rm C} and that of steam is 1.84
Doubling the concentrations of H2S while keeping the concentration of Cl2 constant results in the initital rate increasing by a factor of two.
For the cell reaction: Cu(s) + 2Fe3+ ? 2Fe2+ + Cu2+ Ecell° = 0.33 V What is the value of the equilibrium constant at 25°C for the cell reaction
Diamonds are measured in carats, where 1 carat=0.200 g. The density of diamond is 3.51 g/cm^3. What is the volume of a 2.50-carat diamond
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