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a 50.0 cm open-open tube 6.0 cm in diameter has a measured f1= 304 Hz. calculate the end correction constant from these data.
NH3 is a weak base (Kb = 1.8 × 10-5) and so the salt NH4Cl acts as a weak acid. What is the pH of a solution that is 0.049 M in NH4Cl
Sodium Carbonate (NaCO3) is available in very pure form and can be used to standardize acid solutions. What is the molarity of the HCl solution if 25.3 mL of the solution is required to react with 0
The gas above the top liquid is at an absolute pressure of Pg. Furthermore, the densities and heights of liquid 1 and liquid 2 are P1 and P2 , and L1 and L2 , respectively. In terms of these given s
Inductors in parallel. Two inductors L1 = 1.34 H and L2 = 2.20 H are connected in parallel and separated by a large distance so that the magnetic field of one cannot affect the other. Calculate the
Calcium and Magnesium carbonates occur together in the mineral dolomite. Suppose you heat a sample of the mineral to obtain the oxides,CaO and MgO
Calcium and Magnesium carbonates occur together in the mineral dolomite. Suppose you heat a sample of the mineral to obtain the oxides,CaO and MgO, and then treat the oxide sample with HCl.
A 3000 kg lunar lander is in orbit 50 km above the surface of the moon. how much work must the thrusters do
At the upper atmosphere, the Earth receives approximately 1 KW/m^2 of energy from the sun. If the sun emits energy uniformly into space, what will be the sun's total mass loss
The available starting materials are ZNCO3, HCl, Cl2, HNO3, Zn(OH)2, NaCl, ZN(NO3)2, and Zn. Write complete, balanced equations for the reactions chosen.
An electron is accelerated through a potential difference of 10 Megavolts. By what factor has the mass of the electron increased
Acetic acid has a Ka of 1.8 times 10^{-5}. Three acetic acid/acetate buffer solutions, A, B, and C, were made using varying concentrations: 1. [acetic~acid] ten times greater than \rm [acetate]
Stellar radial velocity variations as small as 1 m/s can be detected with current technology. what is the radius of the widest circular orbit on which jupiter could currently be detected orbiting the
What is the reducing agent and what has been reduced c. What quantity of iodine can be obtained if 20.0g of NaI is mixed with 10.0g of MnO2 ( and a stoichiometric excess of sulfuric acid)
A binary star system has two stars, each with the same mass as our sun, separated by 1.20×1012m. What is the comet's speed at the midpoint
If 29.58 mL of 0.550 M NaOH is required to titrate the oxalic acid in the 0.554g sample to the equivalence point, what is the weight percent of oxalic acid in the mixture. Oxalic acid and NaOH react
At what height above the earth is the acceleration due to gravity 20.0% of its value at the surface
How many grams of dry NH4Cl need to be added to 2.30L of a 0.800 M solution of ammonia, NH3, to prepare a buffer solution that has a pH of 8.83? Kb for ammonia is 1.8 * times 10^-5
A sport utility vehicle (SUV) and a sports car travel around the same horizontal curve. The SUV has a static stability factor of 0.74, At what maximum speed can the sports car negotiate the curve wit
The acidic anion reacts with strong bases according to the following net ionic equation HC8H4O4-(aq) + OH- (aq)--->C8H4O4-2(aq) + H2O(l) If a 0.902g sample of KHC8H4O4 is dissolved n water and ti
A small block having mass m sits on a uniform disk that has radius R=0.5m. What is the initial angular velocity of the disk
Dissolve an aluminum soft-drink can in an aqueous base. 2 Al (s) + 2 KOH (aq) + 6H20 (l)---> 2KAI(OH)4(aq) + 3H(g) If you place 2.05g of aluminum in a beaker with 185 mL of 1.35 M KOH, will any a
A rms AC voltage of 118 V at 60 Hz is applied to an RLC circuit with 11.8 mH inductor, 0.171 µF capacitor, and 43.1 ? resistor in series. What is the power consumed in the circuit
You stand on a frictional platform that is rotating at 1.9 rev/s. Your arms are outstretched, and you hold a heavy weight in each hand. What is the resulting angular speed of the platform