How many ozone molecules are in a liter
If the pressure exerted by ozone, O3, in the stratosphere is 3.0*10^-3 atm and the temperature is 250 K, how many ozone molecules are in a liter?
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Explain the order of elution you observed while performing the gas chromatography for this experiment. What property of the product molecules seems to be the most important in determining the relative retention times?
A 155 g sample of an unknown substance was heated from 25.0°C to 40.0°C. In the process, the substance absorbed 5696 J of energy. What is the specific heat of the substance?
Silver nitrate and sodium phosphate are reacted in equal amounts of 200.0 grams each to produce Silver phosphate and sodium nitrate.
A gas is compressed from an initial volume of 5.60 L to a final volume of 1.23 L by an external pressure of 1.00 at room atm. During the compression the gas releases 125 J of heat.
Two moles of a gas are compressed isothermally and reversibly at 300 K from an initial volume of 10 dm3 to a final volume of 1 dm3. If the equation of state of the gas is P(Vm-b) = RT, with b = 0.03 dm3 mol-1. Calculate the work done on the system
What is the condensed structural formula for 2,2-dimethyl, 4-heptyne
How many atoms is 3.87 moles of lithium? how many molecules is 0.342 moles of phosphorus pentachloride? How many moles of oxygen atoms are in 0.634 moles of nitrogen dioxide?
A gas is compressed in a cylinder from a volume of 20 L to 2.0 L by a constant pressure of 10 atm. Calculate the amount of work done on the system.
A gas has a volume of 5.80 L at O degrees C. What final temperature in degrees Celsius is needed to cause the volume of the gas to change to 100 L if n (number of moles of gas) and P are not changed?
Calculate the equilibrium constant (Keq) for the reaction of equimolar amounts of acetophenone and sodium hydroxide to generate the enolate. The pKa values of acetophenone and water are 19.0 and 15.7, respectively.
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Find the DNS query and response packets in the Wireshark window, and insert a screenshot containing both the request and response here.
Using the diamond dataset, write a function that states the number of rows and number of columns in a data frame in a sentence.
What register in the program is used to determine the number of loop the instruction "bne loop" will encounter?
Describe best practices for applying data protection policies and regulations. Consider the following in your response:
Using Javascript and html, Create array with 3 "best times" (numbers). Write the array so the times in order, from lowest to highest.
Problem: Would a blockchain software application use an adjacency list or adjacency matrix?
Problem: What are the two structural constraints of a relationship in ERD, explain with Example.