Explain what will be the concentration in molecules
At a particular temperature, N2O5 decomposes according to afirst-order rate law with a half-life of 3.0 s. If the initial concentration of N2O5 is 1.0 x1016 molecules/mL, what will be the concentration in molecules/mLafter 10.0 sec?
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What is the area of the triangle formed by their positions after 2 seconds? What is the peremeter? How long until the area of the triangle formed by their positions is 10cm^2? How long until the peremeter is 10cm?
A 1.0L vessel was initially filled with pure NOBr(g) to apressure of 4.0atm. The final Partial pressure of NOBr was 2.5 atmafter the followign equilibrium was established: 2NOBr(g) <->2NO(g) + Br2(g). What is the value of Kp?
The ions will separate until they make an electric field that exactly balances the magnetic force. This electric field produces a voltage that can be measured.a. What force is felt by a singly ionized (+) sodium ion?
What is the pH range of a buffered solution composed of equal molar concentrations of acetic acid and acetate? (Ka= 1.8x 10-5)
In an ionic solution, 5.8 1015 positive ions with charge +2e pass to the right each second while 6.3 x 1015 negative ions with charge -e pass to the left. What are the magnitude and direction of current in the solution?
Determine the number of moles of HCl that canbe neutralized by an over the counter anatacid tablet that contains400mg Al(OH)2?
Find an equation of one variable for the volume of a right circular cylinder inscribed in a cone of height h and radius r with the base of the cylinder on the base of the cone.
(a) How long must a 0.60 mm diameter iron wire be to have a 0.52 A current when connected to the terminals of a 1.5 V flashlight battery? (b) What is the current if the wire is half this length?
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Risky social support Another way in which the Internet can increase children's and adolescents' mental health problems is by fostering communication
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Respond to at least two of your colleagues (one assigned to each of the other two disorders) on two different days and compare your assigned disorder
Its key advantage is high internal validity; its disadvantage is that randomization is often ethically or practically impossible.
Reflect: Briefly describe a personal belief or opinion you hold (e.g., a stance on a political issue, a preference for a certain type of media).