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How much heat (in kj) is required to warm 13.0 C of ice, initially at -15.0 C, to steam at 113.0 C ? The heat capacity of ice is 2.09 J/gC and that of steam is 2.01 J/gC
The standard enthalpy of combustion of solid urea (CO (NH2)2) is -632 kl mol-1 at 298 K and its standard molar entropy is 104.60 J K-1 mol-1, Calculate the standard Gibbs energy of formation of urea at 298 K.
Explain for which of the following species is resonance an important property: HONO, HONO2, N3-, NO2-, NO2
Where on the modern periodic table would you probably find an element that is a dense gas at room temperature? EXPLAIN 3) What should be the most metallic element?
If .75% of the Si atoms are removed during the treatment in part (c), how many moles of HF are required per wafer assuming 100% reaction yield
The concentration of Ag+ in a solution saturated with Ag2C2O4(s) is 2.2 multiplied by 10-4 M. Calculate Ksp for Ag2C2O4.
some ice cubes at 0 degrees c with a total mass of 379g are placed in a microwave oven and subjected to 750. w 750.
How many milliliters of an aqueous solution of 0.202 M potassium chloride is needed to obtain 11.4 grams of the salt
What mass of magnesium chloride is needed to react with 145 g of silber nitrate accourding to the following reaction: MgCl2(aq)+2AgNO3(aq) -> Mg(NO3)2(aq) + 2AgCl
how far will they be separated (in cm) from each other on a plate when the solvent front is developed to 15cm? Draw an approximate picture if what the TLC slide would look like.
According to quantum mechanics, the energy levels for an particle with mass m (such as an electron) confined in a 1-dimensional box of length a is given by
what is the balanced equation with notations for steam reacting with solid carbon to form the gases carbon monoxide and hydrogen.
The concentration of a biomolecule inside a rod shaped prokayorate call is 0.0025M Calculate the number molecules inside the cell, which is 2.4 um long and 1.4 um in diameter.
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