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The magnitude of the maximum acceleration is typically 1.3 , but the driver will usually maintain a constant acceleration that is less than the maximum. A train travels through a congested part of t
You have isolated a strain of E. coli that is resistant to penicillin, streptomycin, chloramphenicol, and tetracycline. You also observe that when you mix this strain with cells of E. coli.
50.0 mL of 1.0 M HCl at 25.0oC were mixed with 50.0 mL of 1.0 M NaOH also at 25.0oC in a styrofoam cup calorimeter. After the mixing process, the thermometer reading was at 31.9oC. Calculate the ene
A 28.5 g sample of an unknown metal is heated to 95.0C and then dropped into 58.0 g of water in a coffee-cup calorimeter. The temperature of the water rises from 23.5 C to 27.1C. Calculate the speci
A certain elevator cab in a New York hotel has a total run of 185 m. Its maximum speed is 272 m/min. Its acceleration (both speeding up and slowing down) has a magnitude of 1.32 m/s2. How long does
A cannon ball made of iron has a volume of 100 . If iron has a density of 7.86 , what is the mass, in kilograms, of the cannon ball?
If the reaction between iron(III) ion and thiocyanate ion yielded an equilibrium concentration of 0.30 M for each of these ions, what is the equilibrium concentration of the red iron(III)-thiocyana
What is an example of a balance reaction beryllium is involved in for a common substance?
If the presure of 50.0 mL of oxygen gas at 100oC increases from 735 mm Hg to 925 mm Hg, what is the final volume? Assume the temperature remains constant.
The distance from the center of the bar magnet to the center of the compass is 22 cm. A steady current of 0.937 amperes runs through the coil. Conventional current runs clockwise in the coil when vi
How many milliliters (mL) of a 1.28 M sulfuric acid solution are needed to neutralize 60.2 mL of a 0.427M sodium hydroxide solution?
Tetrachloroethylene, C2Cl4, can be prepared by reacting acetylene (C2H2), chlorine and calcium hydroxide. The equation for the reaction is:
The most common source of copper is the mineral chalcopyrite . How many kilograms of chalcopyrite must be mined to obtain 385 of pure ?
One of the electrons falls from an outside orbit to an inside orbit giving off red light with a wavelength of 7.34 x 10-7 m. Calculate the frequency of the red light given off by the neon atom.
25.64 g of copper sulfate pentahydrate and 12.69 g of sodium phosphate are added to 1.000 L of water.
Assume that the kinetic energy of a 1300 kg car moving at 120. km/h could be converted entirely into heat. What amount of water could be heated from 20.°C to 51°C by the car's energy?
A solution is prepared by dissolving 19.9 g ammonium sulfate in enough water to make 100.0 mL of stock solution. A 15.00 mL sample of this stock solution is added to 59.00 mL of water. Calculate the
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.
Which of the reagents is the limiting reagent? what is the maximum amount of each product that can be formed? 3CaCo3 + 2FePO4 Ca3(PO4)2+Fe2(cO3)3 assuming we start with 100 grams of Calcium carbona
A gaseous compound is 30.4 % N and 69.6% O. A 5.25 g sample of the gas occupies a volume of 1.00 L and exerts a pressure of 958 mm of Hg at - 4.0 C. Which of the following is its molecular formula?
If a gas has a volume of 211 mL at 780 mmHg and 370 K, at what kelvin temperature would the volume be 803 mL, assuming constant pressure?
Write a nuclear equation that describes the beta decay of hydrogen-3
When it has climbed to an altitude where the pressure is 89 mmHg and the temperature is 0 degrees celsius, what is the volume?