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How many atoms are present in a 75.0cm^3 sample of plumber's solder, a lead-tin alloy containing 67%Pb by mass and having a density of 9.4g/ml
Permanent antifreeze contains ethylene glycol dissolved in water. What is the mass of ethylene glycol dissolved in 5.00 kg of a 40.0% solution
A 47 kg sample of water absorbs 348 kJ of heat. If the water was initially at 28.7 C what is its final temperature.
what is the similarity between metal olefin and metal hydrogen
Given that the solubility of a compound X is 0.60 g/100 mL in ether and 0.12 g/100 mL in water. (a) What is the amount of X in mg that is extracted from a solution containing 60 mg of X in 60 mL of water
When a mixture of 10.0 g of C2H2 and 10.0 g of O2 is ignited, the resultant combustion reacion produces CO2 and H2O. How many grams of C2H2, O2, CO2
c3h8g 5o2g 3co2g 4h2ol ho -2220 kjmolpropane is often used for gas grills and is typically purchased by filling a
If you have unknown sample which either benzoic acid or 2-naphthol, describe a method to determine the identity of the unknown compund.
consider the following reaction3caco3 2fepo4 ca3po42 fe2co33a which of the following reagents is the limiting
The equilibrium constant for a reaction 2SO2 + O2 2SO3 is 2.8 x 10^2 at a certain temperature. If [ SO2 ]^2 = 0.0124M and [ O2 ] = 0.031M, what is [SO2]
Calculate the mass of sodium hydroxide that must be added to 1.00 L of 1.00 M HC2H3O2 to double the pH of the solution (assume that the added NaOH does not change the volume of the solution).
If 16.0 mL of .150 M HCL is needed to neutralize all the NH3 from a 2.25-g sample of organic material, calculate the mass percentage of nitrogen in the sample.
Find the heat transferred (in kJ) when 5.55 L of ethylene glycol (d = 1.11 g/mL) in a car radiator cools from 40.0°C to 25.3°C.
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