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What is the molality of a solution consisting of 3.43 mL of carbon tetrachloride (CCl4; d=1.59 g/mL) in 78.4 mL of methylene chloride (CH2Cl2; d=1.33 g/mL)
Complete the following reaction: Pb-210 decays by ? (beta) emission to form what new necleus? Write the complete nuclear equation.
the vapor pressure of water is 25 mmHg: a) What is the pressure of the dry O2 gas? b) How many moles of O2 were produced? c) How many grams of KClO3 were produced
A gas mixture contains helium and oxygen at partial pressures of 255 torr and 0.450 atm. what is the total pressure, in mmHg, of the mixture after it is placed in a container on-half the volume of t
Explain what happens to the atomic number of a nucleus when positron emission occurs
What is the total pressure, in mmHg, of a gas mixture containing argon gas at 0.25 atm, helium gas at 350 mmHg, and nitrogen gas at 360 torr
Hydrogen gas can be produced in the laboratory through the reaction of magnesium metal with hydrochloric acid
In the information of smog, nitrogen and oxygen gas react to form nitrogen dioxide. How many grams of NO2 will be produced when 2.0 L of nitrogen at 840 mmHg and 24 degrees C are completely reacted
1-Complete the following reaction: Pb-210 decays by emission to form what new necleus? Write the complete nuclear equation.
A container is filled with 4.0 X 10^22 O2 molecules at 5 degrees C and 845 mmHg. What is the volume, in mL, of the container
When looking at a d8 tanabe-sugano diagram how can you determine the total number of peaks that will be seen in the UV-Vis spectrum of the compound
a) What is the mo;ar mass of the gas b) If the unknown gas is composed of 2.78 g of carbon and the rest is hydrogen, what is its molecular formula
What is the molar mass of a gas if 1.15 g of gas has a volume of 225 mL at 0 degrees C and 1.00 atm (STP)
A steel cylinder with a volume of 15.0 L is filled with 50.0 G of nitrogen gas at 25 degrees C. What is the pressure of the N2 gas in the cylinder
What functional group is a: double bonded O that is single bonded to another O and single bond CH3
A weather balloon has a volume of 750 L when filled with helium at 8 degrees C at a pressure of 380 torr. What is the new volume of the balloon where the pressure is 0.20 atm nd the temperature is -
An airplane is pressurized to 650 mmHg, which is the atmospheric pressure at a ski resort at 13000 ft altitude: a) if air is 21% oxygen, what is the partial pressure of oxygen on the plan
You put your arm around the persons waist and use your fist to push up on the persons abdomen, an action called the Heimlich maneuver. a) How would this action change the volume of the chest and lun
How do you rationalize the ordering of the following pairs in the spectrochemical series
How Many minutes will it take to plate out 4.56 g of Ni metal from a solution of Ni^+2 using current of 45.5 amps in an electrolytic cell
Name four hydrocarbon types. Give 1 example for each type. Write chemical formula, structural formula and condensed structural formula for each example.
Define fission and fusion. Describe both processes including the nuclear reactions for both prcesses.
Define the following terms: carbohydrate, monosaccaride, disaccharide, polysaccaride. Give an example of a simple sugar and name the functional group associated with your example.