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Habitually times a plot of log (counts/min) versus absorber thickness yields two or more intersecting straight lines. Define how this might be expected for the Co-60 sample?
A gas is compressed from 68.2 L to 8.0 L at 0.70 atmospheres? In addition a total of 3300 J of heat are gained from warmer surroundings. What is the change in internal energy in kJ
the atomic spacing in rock salt nacl is 0.282 nm. find the kinetic energy in ev of a neutron with a de broglie
Copper is highly sensitive to oxidation by molecular oxygen. Higher oxidation states of Cu do not catalyze diazocoupling reactions. Define oxidation (loss of electrons) and define a redox half reaction for the oxidation of CuI by O2
how many grams of malonic acid would be needed to make 50.0 milliliters 0.0500 l of 0.200 m malonic acid?the formula
The initial rate of a reaction 2A + 3B -> C + 2D was measured using different initial concentrations of A and B. Calculate the value of k
the carbon dioxide that is exhaled by astronauts who are on a space shuttle is scrubbed by pumping the air through
CaF2 is utilized as fluoridation in municipal water system. Compute the solubility of CaF2 in hard water in which the [Ca2+] is 0.050M given Ksp = 4.0x10-11.
What type of glassware would you use to measure the volume of a .002035 M sodium nitrate
What is the dipole moment of HI in C.M 2. The distance between the atoms of H-I is 1.61A . What is the distance in meters. 3. What is the charge associated with each side of the HI molecule 4.What is the percent ionic character of the H-I bond
A 0.01M solution of acid HAS, has a ka=1.6 x 10-10 and a concentration of NaAS of 1.29 x 10-3 molar; (a) what is the pH of this solution and (b) what is the pkb of the conjugate base of HAS
Identify the Qual I cation(s) that is (are) confirmed present in a test solution as a result of a Bronsted acid-base reaction.
At 0.0 degrees C, if the volume of air is 2.5 mL and the pressure of the atmosphere that day is 805 mmHg, what is the number of moles of air.
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