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A cleaning solution is found to have a [OH-] = 3.2 x 10-12M. What is the [H3O+] and is the solution acidic or basic?
Problem- A 2.5 g sample of French fries is placed in a calorimeter with 500.0 g of water at an initial temperature of 21°C. After combustion of the French fries the water has a temperature of 48°C. What is the caloric value (kcal/g) of the Frenc..
If 19.2 g of CO2 is produced in the reaction of C2H2 with O2 to form CO2 and H2O, how many grams of H2O are produced in this reaction.
A mixture of sodium carbonate and sodium hydrogen carbonate is treated with aqueous hydrochloric acid. the unbalanced equations for the resulings reactions are
a 381- sample of unknown solution reacts completely with to form 13.1 . what was the concentration of the
When drawing a Lewis structure, how do I know which atom serves as the central atom in a Lewis structure
Consider a random mixture containing particles of Na2SO4 and K2SO4. There are 13.31 g of Na2SO4 (density 2.627 g/mL) and 86.69 g of K2SO4 (density 2.444 g/mL) in the mixture. All particles in the mixture have a uniform spherical radius of 0.091 mm..
What volume of 0.200M Hydrochloric acid must combined to 250mL of 0.300M C8H7NaO3 to produce a buffer of solution with a pH of 3.37?
During normal grain growth, grain boundaries tend to move toward the center of curvature so that small grains get smaller at the expense of larger grains. During recrystallization, however, the opposite is true
Consider the reaction 3X-----Products the reaction is initiated with a 2.50 M in X. The observed rate constant is 0.020s-1. What is the concentration of X after 1 min
iodination is electrophilc aromatic substion reaction in which electrophile is Iodonium (I^+) , it will updatined by the reaction of sodium hypochlorite (NaOCl) with iodide ion (NaI), which is strong electrophile that reacts quickly in an electrop..
Consider the following specific heats: copper, 0.384 J/g.oC; lead, 0.159 J/g.oC; water, 4.18 J/g.oC; glass, 0.502 J/g.oC. If the same amount of heat is added to identical masses of each of these substances at same initial temperature
A solution of 2.40 grams of the unknown hydrocarbon dissolved in 26.7 grams of naphthalene is found to freeze initialy at 76.2 Degree Celsius. Caluculate the apparent milar mass of the unknown hydrocarbon on the basis of the freezing-point depress..
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