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What is the partial pressure of N2(g) (in atm) in a container filled with 0.1 mol N2(g), 0.2 mol O2(g) and 0.35 mol CH4(g) when the total pressure in the container is 5.0 atm
A parallel-plate capacitor has circular plates of 10.4 cm radius and 1.67 mm separation. Calculate the capacitance in picofarads
How fast must a 143.5 baseball travel in order to have a de broglie wavelength that is equal to that of an xray photon with landa = 79.0 pm? what is the energy level?
A solar cell generates a potential difference of 0.320 V when a 445.0 ? resistor is connected across it and a potential difference of 0.504 V, find the internal resistance of the cell in Ohms
Balance the following redox equation . Once you have balanced the equation calculate how many grams of ammonia will be produced starting from 10 g of Zn
Assuming no loss of water and a heat capacity for the vessel of 10.0 J/C, what is the final temperature of the system ( C of copper = 0.387J/gC) ? What is the final temperature?
A hydrogen atom is in its first excited state n=2. Using the Bohr theor yof the atom, calculate linear momentum of the electrons
Consider the following data showing the initial rate of a reaction at several different concentrations of A
A ball with a vertically downwards initial velocity v(0) = 3 m/s collides with a fixed inclined surface. find the velocity of the ball after it rebounds
Balance the following oxidation-reduction reactions that occur in basic solution. Use the lowest possible coefficients. Include states-of-matter under the given conditions in your answer.
It can be shown that asin(theta) + bcos(theta), where ab is not = 0, is a circle. Find the center (in Cartesian Coordinates) and the radius of the circle in terms of a and b
Hospital X-ray generators emit X-rays with wavelength of about 15.0 nanometers (nm), where 1 nm= 10^-9 m. What is the energy of the X-rays
Two identical light bulbs of 60w and 120v are connected in parallel and these arre then connected across a 120v power source
A radio station's channel, such as 100.7 FM or 92.3 FM, is actually its frequency in megahertz MHz, where 1MHz=10^6 Hz. Calculate the broadcast wavelength of the radio station 96.50 FM.
An electron on from the sun enters the earth's magnetic field high above its surface and undergoes a cicular motion. Calculate the raduis of the circle
What wavelength lambda should the astrophysicist look for to detect a transition of an electron from the n= 7 to the n=3 level
Suppose a uniform magnetic field B is applied perependicular to the plane of a semicircular loop of radius R and a current through the loop is I
What are the concentrations of barium and sulfate ions in this solution? Assume only SO42- ions (no HSO4? ) are present
A circular coil having an area of 24 cm^2 is plaved in a uniform magnetic field of 0.60T, which is derected vertically upward. Find the magnitude of the magnetic flux contained in the coil
A tuning fork vibrates at a frequency of 530 Hz. An out-of-tune piano string vibrates at 535 Hz. How much time separates successive beats
A straight wire in a magnetic field experiences a force of 0.030 N when the current in the wire is 2.7 A. What is the new current
A Young's double-slit experiment is performed using light that has a wavelength of 638 nm, Calculate the angle that locates the first-order bright fringes on the screen
A solution contains 0.37 M Ni(NO3)2 and 0.37 M Cu(NO3)2. Can the metal ions be separated by slowly adding Na2CO3? Assume that for successful separation 99% of the metal ion must be precipitated befo
A woman holds a tube of lipstick 5.1 cm from a spherical mirror and notices that the image of the tube is inverted, Calculate the focal length of the mirror.
The concentration of Ag+ in a solution saturated with Ag2C2O4(s) is 2.2 multiplied by 10-4 M. Calculate Ksp for Ag2C2O4.