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A 20.0 gram aluminum ball (specific heat 0.90 J g-1 °C-1 ) at 80 °C was placed in 50 grams of water initially at 22.9 °C. What is the final temperature of the water and aluminum assuming no heat was lost during the energy exchange.
the basketball player liks to release his foul shots with an initial speed v023.5 ftsec. what values of the initial
A buffer is made by dissolving HC2H3O2 and NaC2H3O2 in water. Write an equation that shows how this buffer neutralizes added: Acid, Base
Liquid sodium is being considered as an engine coolant. How many grams liquid sodium (minimum) are needed to absorb 9.20 MJ of energy (in form of heat) if the temperature of the sodium is not to increase by more than 10.0'C?
As a reference, a standard mixture containing 2.26 micrograms Co/mL and 1.92 micrograms Ti/mL was prepared and measured to have a signal-to-signal ratio of 2.41 Ti: 1.00 Co.
Question- How do acetaldehyde impurities arise in the Fermentation. Please provide an equation for the reaction
Explain for which of the following species resonance is an important property: HONO, HONO2, N3-, NO2-, NO2.
What is the solubility of the following compounds in water and ethanol. ethyl acetate, ethanol, silica, azobenzene, azulene, 4(p-nitrophenylazo) resorcinol, methyl red, bromcresol Green
A parenteral solution is a solution that is injected into the tissues or bloodstream, but not given orally. Why are isotonic solutions used as parenteral solution
A gaseous mixture of rm O_2 and rm N_2 contains 36.8 % nitrogen by mass. What is the partial pressure of oxygen in the mixture if the total pressure is 485 mmHg?
exactly 10.0 ml of an unknown sample of ni2 gave a current of 2.36 ?a. after 0.500 ml solution of 0.0287 m ni2 was
The equilibrium constant (KP) is 0.13 at a particular temperature for the reaction: N2O4(g) ? 2NO2(g) Given the following sets of initial conditions, what is the net change that must occur for the reaction to reach equilibrium
What is the conversion calculation for M to grams of KBr for the following: What mass of potassium bromide is contained in 135 mL of 0.251 M Kbr solution
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