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What is the electron geometry for BrF5?
question calculate the vapor pressure at 25 degrees c of an aqueous solution that is 5.50 nacl by mass. the pure vapor
Explain what acids cause acidic precipitation. Define what are the primary pollutants that give rise to them. Explain what are their main anthropogenic sources
lf the catalyzed decomposition of NrO occurs first at a Tr:341 K and then atTr = 229 K, with a k/k, ratio of 0.500, what is the activation energy
what is the balanced net ionic equation for the reaction below in acidic solution? enter the coefficient for each
An element crystallizes in a body-centered cubic lattice. The edge of the unit cell is 3.06 , and the density of the crystal is 7.01. Calculate the molar mass (in g/mol) of the element.
what is the percent yield of the enzyme recovered in the purified fraction. what is the degree of purification (fold purification
it absorbs 32.60 kj of heat from its surroundings. what is its final temperature in C (specific heat .9930 J g C for Al)
At constant volume and temperature, 100 kPa of ethane, C2H6, is combusted with 500KPa of O2. What is the total pressure of the gaseous mixture after the reaction complete?
A baked cake is taken out of a 400 degrees oven as well as placed on a table in a 65 degree room. Twenty minutes later the temperature is 320 degrees. It cools according to newtons law. What the temperature of the cake after 30 minutes. All temper..
how might you be able to build a buffer solution of a given molarity at any pH without doing a single Henderson- Hasselbalch calculation?
How would the absorbance of the standard solution have been affected if 0.00050 M NaSCN had been used in place of 0.00040 M? if it changes, calculate the new absorbance based on your values.
What is the fraction of CCl4that is converted into C and Cl2? What are the partial pressures of CCl4 and Cl2 at equilibrium? CCl4 C +2Cl2
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