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A bicycle tire is filled with air to a pressure of 611 kPa at a temperature of 19 degrees C. Riding the bike on a hot day increases the temperature of the tire to 58 degrees C. Assuming constant volume, what is the new pressure in the tire?
How many grams of dry NH4Cl need to be added to 2.10 L of a 0.500 M solution of ammonia, NH3 , to prepare a buffer solution that has a pH of 8.76? Kb for ammonia is 1.8*10 ^-5.
Compute the molecular formula of CH 3 COOH the percent composition of acetic acid is 39.99% C and 6.73% H. The remainder of the compound is oxygen.(The molar mass of acetic acid is 60.06 g/mol.)
Calculate the ratio of CH 3 NH 2 to CH 3 NH 3 Cl required to create a buffer with pH = 10.14. Express your answer using two significant figures.
Suppose that a fully charged lead-acid battery contains 1.50L of 5.00M H2SO4. What will be the concentration of H2SO4 in the battery after 3.40A of current is drawn from the battery for 4.50 hours?
calculate the estimated ratio of the protonated form of acetylsalicylic acid to the deprotonated form of aspirin at equilibrium in the stomach? acetylsalicylic acid(Aspirin) is a weak acid with a pKa = 3.4, Stomach acid has pH = 1.4.
75.0 mL of a 1.80 M solution is diluted to a volume of 258 mL. A 129-mL portion of that solution is diluted using 187 mL of water.
Suppose that you developed your own new temperature scale, denoted oN. You chose 30.0oN as the temperature of freezing water and 280oN as the temperature of boiling water at 1.0 atm pressure.
Application of Avogadro's law - To evaluate the volume of a gas using Avogadro's Law.
A cylinder is separated into two sections Y and Z by an insulating frictionless piston and sealed at both ends. Each section has two moles of an ideal gas.
How many moles of Mg3N2 would be produced when 180.0 g of Mg reacts with 85.0 g of N2.
What are the boiling point and freezing point of a 2.47 m solution of naphthalene in benzene? (The boiling point and freezing point of benzene are 80.1°C and 5.5°C, respectively.
Determine how many kgs of Ca are there in a 205-pound man If 1.4 percent of the mass of a human body is calcium(Ca)?
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