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Calculate the number of moles of gas in a 3.24 L basketball inflated to a total pressure of 24.3 psi (pounds per square inch) at room temperature (25 degrees Celsius).
A turntable accelerates from rest with a constant angular acceleration of 1.5 rad/s. A ladybug is standing near the edge of the spinning record. Which plot best represents the total linear accelerat
If the formula for potassium chlorate is KClO3 and the formula for magnesium fluoride is MgF2, then what is the formula for magnesium chlorate?
On the Apollo 14 mission to the moon, astronaut Alan Shepard hit a golf ball with a golf club improvised from a tool. The free-fall acceleration on the moon is 1/6 of its value on earth. Suppose he
0.5585g of ferrous ammonium sulfate hexahydrate requires 21.45 ml of KMnO4 solution to reach a pink endpoint.What is the molarity of the KMnO4 solution?
Determine the molality of a solution made by dissolving 50.0 g of glucose (C6H12O6, molar mass = 180.1 g/mol) in 294 g of water.
A rocket is launched at an angle of 53.0° above the horizontal with an initial speed of 101 m/s. The rocket moves for 3.00 s along its initial line of motion with an acceleration of 32.0 m/s2.
What types of reactions could happen if the materials mixed? What precautions do you need to take with each of these materials?
One tire is inflated to a pressure of 40 and goes a distance of 18.0 ; the other is at 105 and goes a distance of 93.4. Assume that the net horizontal force is due to rolling friction only and take
when the cations Na+ K+ Cs+ are combined with chloride ion in the gas phase to form ion pairs, which pair formation releases the greatest amount of energy? KCL or RbCl, or NaCl or CsCl.
Iron(III) oxide reacts with carbon to give iron and carbon monoxide. How many grams of C are required to react with 16.5 g of Fe2O3?
Magnesium hydroxide is used in several antacid formulations. When it is added to water it dissociates into magnesium and hydroxide ions.
An object with mass m1=%.00kg rests on a frictionless horizontal table and is connected to a table that passes over a pulley and is then fastened to a hanging object with mass m2=10.0kg. Find the ac
Calculate the hydronium ion concentration and the pH after the addition of 0.25 mL of 0.10 M HCl to each one. Ka of acetic acid = 1.8 x 10-5 Acetic acid/sodium acetate buffer Acetic acid .1M Sodium
Deduce the rate law and rate constant of the reaction from the given experimental data (Hint: calculate the change in concentration of the reactants to at least three decimal places).
The volatile liquid ethyl mercaptan C2H6S is one of the most odoriferous substances known. It can be added to natural gas to make leaks detectable. How many molecules of ethyl mercaptan C2H6S are co
This situation is like that of a car on a curve that is banked at an angle of 22°. If she tries to make the turn without slowing down, what is the minimum distance from the sea wall that she can
A baseball (m = 151 g) approaches a bat horizontally at a speed of 43.1 m/s (96.4 mi/h) and is hit straight back at a speed of 51.7 m/s (116 mi/h). If the ball is in contact with the bat for a time
Consider the reaction CuSO4(s) ! CuO(s) + SO3(g) . If G? = -14.6 kJ at 950?C for this reaction, calculate ΔG for an SO3(g) pressure of 50 bar at this temperature.
Metal X was plated from a solution containing cations of X. The passage of 48.25 C deposited 31 mg of X on the cathode. What is the mass of X (in grams) per mole of electrons?
If a sample containing 1.50mL of nitroglycerin (density=1.592g/mL) is detonated, how many total moles of gas are produced?
How much work is done in kilojoules for the reaction of 6.40 of acetylene at atmospheric pressure if the volume change is -2.76 ? & ;
A uniform plank of length 4.3 m and weight 215 N rests horizontally on two supports, with 1.1 m of the plank hanging over the right support (see the drawing). To what distance x can a person who we