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A bicycle tire is filled with air to a pressure of 75. psi at a temperature of 19 degrees celcius. Riding the bike on asphalt on a hot day increases the temperature of the tire to 58 degrees celcius. The volume of the tire increases by 4.0%. What is the new pressure in the bicycle tire?
A 4.10 g nugget of pure gold absorbed 278 J of heat. What was the final temperature of the gold if the initial temperature was 25.0°C? The specific heat of gold is 0.129 J/(g·°C).
When heated, ammonium carbonate decomposes as follows. NH4CO2NH2(s) -> 2NH3(g)+CO2(g) At a certain temp, the equilibrium pressure of the system is 0.318 atm. Calculate Kp for the reaction.
Determine what concentration of OH - is needed to dissolve 0.015 mol of Zn(OH) 2 zinc hydroxide in a liter of solution
The presence of a carboxyl band near 1640 cm-1 and two bands near 3000 cm-1 is good evidence of an alcohol B) The presence of a sharp, medium intensity band near 2720 cm-1 and a strong carbonyl band near 1700 cm-1 is good evidence of an alcohol
The nuclide As-76 has a half-life of 26.0 hours. If a sample of As-76 weighs 344 g, what mass of As-76 remains after 538 minutes.
A company is marketing a photovoltaic cell that it claims has an output of 320 W/m2 when tested at the standard 1000 W/m2 irradiation condition
A student carefully diluted 25.0mL of 6M NaOH solution in 475mL of distilled water. Calculate the molarity of the diluted solution of base.
an auto mechanic spills 83mL of 2.6M H2SO4. How many milliliters of 1.2M of NaHCO3 must be poured on the spill to react completely with the sulfuric acid?
If 138 mL of wet H2 is collected over water at 24°C and a barometric pressure of 748 torr, how many grams of Zn have been consumed? (The vapor pressure of water is 22.38 torr at 24°C.)
Estimate the average spacing between water molecules in liquid water by making use of 2 pieces of information: (a) liquid water has a density of 1 g/cm^3
the reaction of concentrated hydrochloric acid with zinc metal -the reaction of solid strontium carbonate with nitric acid
What is the frequency factor, A? /(M · s) (C) Predict the value of the rate constant at 73°C. /(M · s)
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