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Suppose you have two 100mL graduated cylinders. In each cylinder there is 40.0mL of water. You also have two cubes: One is lead, and the other is aluminum. Each cube measures 2.0cm on each isde. After you carefully lower each cube into the water of its own cylinder, what will the new water level be in each of the cylinders?
the label of an aerosol spray can contains a warning that the can should not be heated to over 130 degrees f because of
find the ph of the resulting solution when 20.00ml of a 0.1000m triethylamine ch3ch23n kb 5.2x10-4 solution is
Consider the following first-order reaction: Reactant Product. This reaction has a half-life of 28.2 seconds. Calculate the rate constant.
Molybdenum crystallizes in a body-centered cubic array of atoms. The edge of the unit cell is 0.314 nm long. Calculate the density of this metal.
Oxygen-15 has a half-life of 124 seconds. You begin with a 429 mg sample of oxygen-15. You wait 6.20 minutes. What is the total amount of time in seconds
For a particular process that is carried out at constant pressure, q= 130 kJ and w= -20 kJ. Therefore,
What mass of oxygen will be dissolved in the water? The temperature of the water is 58 C, KH (02)=.00141 M/atm, and the mole fraction of oxygen gas in .23
On a trip of 287 miles, a driver maintains an average speed of 85.0 km/hr. How many minutes does the trip take
If the standard heat of rxn for the rxn is calculated to be -567.4 kJ/g mol FeS2(s) what is the value of Delta Hrxn will you use per kg of FeS2 burned in an energy balance
Give the formula of a compound that contains a secondary hydrogen and Give the formula of a compound that is a secondary alcohol
a solution is prepared by adding 30.00 g of lactose milk sugar to 110.0 g of water at 55 degc. the partial pressure of
at a certain temperature kc 1.30 1010 for the reaction above. calculate the equilibrium concentration of h2s if h2
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