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When an ant bites you, the reason it stings is because of an injection of formic acid. What is the pH when 50.0 mL of 0.1480 M formic acid (HCOOH) is titrated with 40.2 mL of 0.1841 M NaOH? PKa form
The rotational velocity of a merry-go-round increases at a constant rate from 0.6 rad/s, What is the rotational acceleration of the merry-go-round
Suppose that a disk rotates through two revolutions in 4.2 seconds. What is its displacement in radians in this time
A 100-cm^3 container has 4 g of ideal gas in it at 250 kPa. if the volume is changed to 50 cm^3, what is its new density
A bicycle wheel is accelerating at the constant rate of 1 rev/s2. After 4.6s how many revolutions does it turn
A soccer player kicks a ball that is on the ground down the field. The balls initial velocity is 10 m/s, 30 degrees above the horizontal. How long does is take for the ball to land down the field
I am confused as to whether or not this is a trick question Two metal strips are brought together until their edges are separated by a small distance, What changes would you expect to observe
An ice-cube tray of negligible mass contains 0.350 kg of water at 18.0°C. How much heat must be removed to cool the water
Body A weighs 104 N, and body B weighs 30 N. The coefficients of friction between A and the incline are ?s = 0.56, Find the acceleration of A if A is initially at rest
What mass of carbon dioxide will be produced when 29.9 g of butane reacts with an excess of oxygen in the following reaction
3Cl2(g) + 6NaOH(aq) ? 5NaCl(aq) + NaClO3(aq) + 3H2O(l). How many grams of sodium chloride can be produced from 37.2 g of NaOH
The Cd2 was displaced from EDTA by the addition of an excess of CN-. Titration of the newly freed EDTA required 23.4 mL of 0.0250 M Ca2 . What were the molarities of Cd2 and Mn2 in the original solu
A 4-kg rock is tied to the end of a string and twirled overhead, 1.7 m above the ground, in a 1.1-m radius, horizontal circle. How far away from its location when the string breaks will the rock hit t
Calculate the time it takes the sled to travel 21 m down the slope and draw a free-body diagram for the sled sliding down the slope.
A computer is reading data from a rotating CD-ROM. At a point that is 0.0256 m from the center of the disk, What is the centripetal acceleration at a point that is 0.0779 m from the center of the disc
A buffer solution is made that is .412 M in CH3COOH and .412 M in CH3COOK. Write the net ionic equation for the reaction that occurs when .088 mol HI is added to 1.00L of the buffer solution. What i
A 1,699-kg satellite orbits the Earth in a circular orbit with a period of 6,016 s. How high above the Earth's surface is the satellite's orbit
Why have so many jurisdictions turned to forms of ADR to supplement the judicial process and what are the major effects on caseflow management of the decision by jurisdictions to insert ADR requireme
A current of 15.0 mA is maintained in a single circular loop with a circumference of 3.30 m. find the magnitude of the torque exerted by the magnetic field on the loop
An unknown gas Q effuses 1.33 times as fast under the same conditions as Xe gas. What is the molar mass (g/mol) of Q
Sodium ions (Na+) move at 0.860 m/s through a bloodstream in the arm of a person standing near a large magnet. what would be the magnetic force on the arm
What observed rotation is expected when a 1.28M solution of (R)-2-butanol is mixed with an equal volume of a .640M solution of racemic 2-butanol, and the resulting solution is analyzed
The magnetic field of the earth at a certain location is directed vertically downward and has a magnitude of 50.0 µT. FIND magnitude of the magnetic force the field exerts on the proton
I lift a 3 kg rock up and place it on a table 2 meters above the ground. How much gravitational potential energy does the rock have
The density of water is 1.0 x 10^3 kg/m3. Calculate the gauge pressure in the pipe at this location.