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Find the number of moles of water that can be formed if you have 158 mol of hydrogen gas and 74 mol of oxygen gas. Express your answer with the appropriate units.
The initial disappearance of silver nitrate in water indicates a chemical reaction occurred The color change of the solution indicates a chemical reaction occurred A chemical reaction occurred when
Two cylinders each contain 0.30 mol of a diatomic gas at 300 K and a pressure of 3.0 atm. What is the final temperature of the gas in the cylinder A
To keep her dog from running away while she talks to a friend, Susan pulls gently on the dog's leash with a constant force given by F = (2.1 N ) ^x+ (1.5 N )^y, How much work does she do on the dog
The energy diagram shown represents the chemical reaction between solid ammonium chloride and solid barium hydroxide octahydrate: 2NH4Cl(s)+Ba(OH)2 * 8H2O(s)-----2NH3(aq)+BaCl2(aq)+10H2O(l)
What is the Gibbs free energy for this reaction at 5546 ? Assume that and do not change with temperature. At what temperature Teq do the forward and reverse corrosion reactions occur in equilibrium
The volume of a gas is halved during an adiabatic compression that increases the pressure by a factor of 2.5
How many grams of sodium formate, NaCHO2, would have to be dissolved in 1.3 L of 0.45 M formic acid (pKa 3.74) to make the solution a buffer for pH 3.75
A scaffold of mass 57 kg and length 6.5 m is supported in a horizontal position by a vertical cable at each end. What is the tension in the cable closer to the painter
Draw and name all the possible constitutional and stereoisomers of the monochlorinated products formed by the free-radical chlorination of 2-methylbutane. Count any pair of enantiomers as two differ
An artificial satellite circling the Earth completes each orbit in 118 minutes. Find the altitude of the satellite
The enthalpy change for the oxidation of styrene, C8H8, is measured by calorimetry. C8H8(l) + 10O2(g) ? 8CO2(g) + 4HOH(l) ?rH = -4395.0 kJ/mol How much heat in kJ is required to oxidize 25.0 g of st
A satellite has a mass of 102 kg and is located at 2.02 106 m above the surface of Earth. find the magnitude of the gravitational force on the satellite
How much energy (in J) is required to change the temperature of 1.00 kg Fe from 25.0°C to 1515°C? The specific heat capacity of iron is 0.449 J/g*°C.
A thin spherical shell has a radius of 1.70 m. An applied torque of 920 N m imparts to the shell an angular acceleration equal to 6.70 rad/s2 about an axis through the center of the shell. What is t
Oxygen gas can be obtained by the thermal decomposition of mercuric oxide; 2 HgO(s) + heat ® 2 Hg(l) + O2(g) What volume in liters of oxygen gas, measured at 6.926 °C and 0.9130 atm, would b
An air puck of mass m1 = 0.32 kg is tied to a string and allowed to revolve in a circle of radius R = 1.1 m on a frictionless horizontal table. What is the horizontal force acting on the puck
The triprotic acid H3A has ionization constants of Ka1 = 7.5× 10-2, Ka2 = 7.8× 10-9, and Ka3 = 6.9× 10-12. Calculate the following values for a 0.0580 M solution of NaH2A Calculate
Two coils have the same number of circular turns and carry the same current. Each rotates in a magnetic field acting perpendicularly to its axis of rotation. What is the radius (in cm) of coil 2
What is the molar mass of butane, C4H10? Express your answer to four significant figures and include the appropriate units. Value and units
Two coils are close to each other. The first coil carries a time-varying current given by I(t) = (5.80 A) e-0.0250tsin(377 t). What is the mutual inductance of the coils
LC circuit consists of a 20.0 mH inductor and a 0.750 µF capacitor. find the greatest potential difference across the capacitor
What is the number of turns on the coil and what is the magnetic field at the mean radius?
A skier leaves the ramp of a ski jump with a velocity of 30.0 m/s The slope is inclined at 50.0°, Find the distance from the ramp to where the jumper lands
Given: Volume of He sample = 72.5mL Temperature = 30 C Atmospheric pressure = 785 mmHg Equilibrium vapor pressure of water at 30 C = 31.88 mmHg What is the ratio of average molecular velocity betwee