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15.0 ml of a 0.1075 M NaOH solution are required to neutralize 15.00 mL of a sulfuric acid solution. What is the concentration of the sulfuric acid solution
5 moles of an ideal gas, initially at P=105 Pa and V=3m3, expand adiabatically until the volume is doubled, How much work was done in the adiabatic step
A recording engineer works in a soundproofed room that is 50.0 dB quieter than the outside. what is the intensity outside
A mass of 1 kg is hung vertically from a spring stretching the spring .20 m. It is then pulled .10 m below its equilibrium position, find the time to make one complete cycle
Sodium hydroxide comes in a pellet form in bottles from laboratory supply companies but it cannot be used as a primary standard. Why not
A 1.30 m long ramp is inclined at 14 degrees to the horizontal. A solid ball is released from rest at the top of the ramp. Find the ball's speed at the bottom of the ramp
Molecules are mobile in a gas and some reactions can be run in the gas phase. Give several reasons solutions are preferable for synthetic reactions.
Your little sister (mass 25.0 kg) is sitting in her little red wagon (mass 8.65kg ) at rest. You begin pulling her forward, Calculate the impulse you imparted to the wagon and its passenger
The resulting solution required 13.73 mL of 0.176 mol L-1 NaOH(aq) to neutralize the excess, unreacted HCl. What was the percentage by mass of Mg(OH)2 in the original sample [Hint: When Mg(OH)2 or A
A blue puck with a mass of 4.30×10?2kg , sliding with a speed of 0.190m/s on a frictionless, horizontal air table, Find the direction of the velocity of the red puck after the collision
Calculate the pH of a buffer solution made by mixing 34 ml of a 0.11 M potassium acetate solution with 63 ml of a 0.10M acetic acid solution. Give the pH to two decimal places.
A 0.350kg glider is moving to the right on a frictionless, horizontal air track with a speed of 0.750m/s when it makes a head-on collision with a stationary 0.150kg glider. Find the final kinet
A red laser from the physics lab is marked as producing 632.8-nm light. When light from this laser falls on two closely spaced slits, What is the wavelength of light produced by the pointer
the driver of a train moving at 20 m/s applies the brakes when it passes an amber signal. Find the train's acceleration and its speed at the next signal
Calculate the pH of a solution resulting from the titration of 50mL of 0.04M HBr with 25 mL of 0.107M KOH. Give your answer to two decimal places
A chemical compound has a molecular weight of 132.05 g/mole. 1.908 grams of this compound un¬derwent complete combustion under constant pressure conditions in a calorimeter with a heat ca¬pa
If HCl concentration is reduced by 50% and the rate is reduced by 25% what is the reaction order? This is assuming the other reactant is at a constant concentration.
A young girl with mass 35.5kg is sliding on a horizontal, frictionless surface with an initial momentum that is due east and that has magnitude 86.0kg?m/s, How much work has been done on the girl by
For the following circuit: V1 = 300 V, R1 = R4 = 10 ?, R2 = R3 = 20 ? and R5 = 40 ?. Find the equivalent resistance of the network
Canadian nuclear reactors use heavy watermoderators in which elastic collisions occur between the neutrons and deuterons of mass2.0 u. What is the speed of a neutron, expressed as a fraction of its o
An astronaut in space cannot use a scale or balance to weigh objects because there is no gravity. What is the mass of this canister
A bullet of mass 7.00g is fired horizontally into a wooden block of mass 1.21kg resting on a horizontal surface. compute the initial speed of the bullet
A small object is placed to the left of a convex lens and on it's optical axis. The object is 30 cm from the lens and has a focal length of 12 cm. Describe the nature of this image
32.00mL of a .2500 M sodium hydroxide solution exactly neutralized a solution containing 0.5000 grams of a soluble solid acid that yields two moles of hydrogen ions per mole of acid when dissolved.
An RLC series circuit has a 202 ? resistor and a 25.0 mH inductor. At 8220 Hz, the phase angle is 45.0°. Find the minimum possible capacitance of the circuit