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How much heat (in kJ) is required to warm 13.0 g of ice, initially at -10.0 °C, to steam at 111.0 °C? The heat capacity of ice is 2.09 J/g⋅°C and that of steam is 2.01 J/g⋅°C, the heat of fusion for water is 6.02 kJ/mol, and the heat of vaporization for water is 40.7 kJ/mol.
A compound has a molar mass of 180.15 g/mol. Given the following percent composition, calculate the molecular formula
Cobalt-60, which undergoes beta decay, has a half life of 5.26 years.
Why does one electron in a potassium atom go into the fourth energy level instead of squeezing into the third energy level along with the eight already there
Problem- An aqueous solution has a normal boiling point of 103 c. What is the freezing point of his solution. For Water Kb= 0.51 C/m and Kf= 1.86 C/,
what would be the effect on the results of mistakenly adding 2.43 times 10^-3 g Mg to 4.0 mL of 0.1M hcl rather than to 4.0 mL of 1.0M hcl as instructed
A solution was made by dissolved 2.0 g of an unknown non-electrolyte in 25 g of acetic acid. The solution boiled at 119.6 degrees C. Calculate the molar mass of the non-electrolyte.
calculate the uncertainty in nm in the position of an electron with the velocity of 2.00x103 ms the velocity is the
Discuss how one could tell the difference between first order, second order and zero order reactions by graphing the reactant concentration in some way vs time.
A piston has an external pressure of 13.00 atm. How much work has been done if the cylinder goes from a volume of 0.160 liters to 0.540 liters.
Assume that sucrose is a molecular solid and does not ionize when it dissolves in water. Kf values are given here.
Copper metal has a specific heat of 0.385 J/g·°C. Calculate the amount of heat required to raise the temperature of 22.8 g of Cu from 20.0°C to 875°C.
Gold arranges in a face centered manner and has an edge length of 488 pm; what is the atomic radius of a gold atom?
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