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A 32.5g cube of aluminum initially at 45.8C is submerged into 105.3g of water at 15.4C. What is the final temperature of both substances at thermal equilibrium? (Assume that the aluminum and the water are thermally isolated from everything else.)
A 2.50-g sample of a large biomolecule was dissolved in 37.0 g of carbon tetrachloride. The boiling point of this solution was determined to be 77.85°C.
How many moles of NaOH are used
aluminum burns in bromine producing aluminum bromide. in a laboratory 6.0 g of aluminum reacts with excess bromine.
For the equilibrium H2(g)+ CO2(g) H2O(g)+CO(g) Kc=3.18 at 1106K. If each of the four species was initially present at a concentration of 3.000M.
What conclusion cab be drawn about the acid-base properties of EOxHy compounds and the position of the element E in the periodic table
a toothpaste contains 0.24 by mass sodium fluoride used to prevent dental caries and 0.30 by mass triclosan rm
Calculate the partial pressure (in atm) of HBr at equilibrium when 5.00 atm of CH3Br and 5.00 atm of H2O react at 1000 K according to the following chemical equation
what is used to measure volumes of liquid accurately? what is used to hold a stem funnel in filtration or a crucible and cover?
In the year 2007, an estimated amount of 31 billion tons of carbon dioxide was emitted worldwide due to fossil fuel combustion and cement production. Express this mass of carbon dioxide in grams without exponential notation, using an appropriate m..
Which of the following compounds can exhibit geometric isomerism (has cis-trans isomers)?
Derive the activation energy for the reaction that has a rate constant of 3.5 x 10^-5 s-1 at 25C and the rate constant of 4.8 x 10^-4 s-1 at 45C.
If 27mL of 6.0 M sulfuric acid was spilled, what is the minimum mass of sodium bicarbonate that must be added to the spill to neutralize the acid?
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