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Set up a ratio to calculate the number of oxygen molecules released when 1g of silver oxide is broken down.
The number of lone pairs = The number of single bonds = The number of double bonds = 2. The central nitrogen atom A. Obeys the octet rule B. Has an incomplete octet. C. Has an expanded octet.
calculate the mass of water that must be added to 0.45 mol of glucose to make a solution of 15.0 percent by mass. the molar mass of glucose is 180 g/mol
On the coldest day of last year, what was the temperature at the bottom of Lake Michigan? explain your answer in terms of the density of water.
Using the van der Waals equation, calculate the pressure of 14.0 g of N2 in a 0.600 L container at 27.0 °C. The van der Waals constants
Fluorine-18, which has a half-life of 110 min, is used in PET scans. If 123 mg of fluorine-18 is shipped at 8:00 a.m., how many milligrams of the radioisotope are still active if the sample arrives at the radiology laboratory at 1:30 p.m.?
A mixture of 0.140 moles C is reacted with 0.117 moles of O2 in a sealed, 10.0 L vessel at 500 K, producing a mixture of CO and CO2.
Determine the amount of energy or work that the silicon nitride tip could absorb before being plastically deformed, assuming no initial cracks. Volume is in part A.
H2O is amphoteric meaning it can act as both a Bronsted acid and a Bronsted base.Show that H2O really is amphoteric by writing the relevant equations
If the barometric pressure is 784 torr and the experiment is carried out at 25 oC, what is the pressure of the gas collected?
Draw on a P-V diagram the following processes. Label accurately each point in the four steps of the cycle using p,V,T for variables e.g. Va. The working substance is a perfect gas. Start from A. Show direction of change using arrow heads.
Calculate the final temperature of 34mL of ethanol initially at 20celcuis upon absorption of 739 J of heat. (density of ethanol =0.789g/mL )
Important information about Imidazole. The imidazole ring system has a great deal of aromatic character. Can you formulate two resonance structures that account for the characteristics?
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