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Objects A and B are both positively charged. Both have a mass of 200g , but A has twice the charge of B. If the objects are released, what is the initial acceleration of A
One mole of a dilute gas initially has a pressure equal to 1.00 atm, and a volume equal to 23.0 L and an internal energy of 3.49 kJ. Find the heat absorbed by the gas
What ions are in these solutions. cold tap water, 0,9 % NaCl (aq), 0,1 M acetic acid, 0,1 M HCl, 0,1 M NaC2H3O2 (aq), 0,1 M ammonia.
Which of the molecules N2, NO, O2, C2, F2, and CN would you expect to be stabilized by (a) the addition of an electron to form the anion (b) the removal of an electron to form the cation
The overall Kf for the complex ion Ag(NH3)2+ is 1.7x10^7. Ksp for AgI is 1.5x10-16. What is the molar solubility of AgI in an aqueous NH3 solution (Kb=1.8x10-5) with a pH of 12
List the following in order of decreasing H3O+ concentration, highest to lowest. A) HC2H3O2, Ka= 1.8x10^-5 B) HClO, Ka= 3.5x10^-8 C) H3BO3, Ka= 7.3x10^-10 D) HC7H5O2, Ka=6.3x10^-5 E) H2S, Ka=1.0x10^
Calculate the temperature of boiling water at an elevation of 6000ft (2000m) given that the atmospheric pressure is 0.8atm. Assume delta H_vap is independent of T.
Starting from rest, you move with a constant acceleration of 2.1 m/s2 for 15.0 s and then move with an acceleration of -2.1 m/s2 for another 15.0 s. What is your maximum speed attained
A gas is allowed to expand isothermally until it reaches its final volume and its pressure is 2.97 atm. Find the heat absorbed by the gas during this process
The solubility product constant for AgCl at 298 K is 1.82 × 10-10. Calculate E° for the process
Starting from rest, you move with a constant acceleration of 2.1 m/s2 for 15.0 s and then move with an acceleration of -2.1 m/s2 for another 15.0 s. How far do you go during the whole trip
An ideal gas occupies a volume of 2.85 m3 at STP. The pressure of the gas in increased to 3.71 atm. Calculate the new volume of the gas
A titration was performed to standardize an EDTA solution. use the following data to calculate the molarity of the EDTA solution. A 50.00 mL aliquot of a standard solution containing 0.025000 M Ca^2
4.3 moles of Hydrogen gas initially at Standard Temperature and Pressure. The gas is heated to a temperature of 49°C while being kept at constant pressure. What is the new volume of the gas afte
If 62.9 L of oxygen at 18.0°C and an absolute pressure of 2.28 atm are compressed to 56.5 L and at the same time the temperature is raised to 50.0°C, What is the average translational kineti
A small bridge is constructed of a single concrete slab which has a length of 14.5 m at 21.7 °C. Calculate the change in the length of the bridge if the temperature changes to 28.7 °C
a car traveling 85 km/hr strikes a tree. the front end of the car compresses and the driver comes to rest after traveling 0.8m. What was the average acceleration of the driver
If the final temperature of the system is 22.0?C, what is the mass m of the water that was initially at 80.0 ?C
An airplane flies eastward and accelerates uniformly. At one position along its path it has a velocity of 32.3 m/s. Find the airplane's acceleration
if the radius of curvature of the concave mirror is 15 cm, what is the position,nature and magnification of the image
A simple harmonic oscillator consists of a block of mass 4.10 kg attached to a spring of spring constant 350 N/m. What is the amplitude of the oscillations
Suppose you lower the object a distance 0.246 m (in the same direction the field is pointing). What is the work done by the electrical force
The best leaper in the animal kingdom is the puma, which can jump to a height of 3.7 m when leaving the ground at an angle of 45°. With what speed must the animal leave the ground
Two equally charged particles, held 4.7 × 10-3 m apart, are released from rest. The initial acceleration of the first particle is observed to be 7.2 m/s2, find the mass of the second particle
In a women's 100-m race, accelerating uniformly, Laura takes 2.00 s and Healan 3.00 s to attain their maximum speeds, What is the acceleration of each sprinter