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Two samples of substances composed of carbon and oxygen are analyzed. Sample 1 contains 5.00 grams of C and 13.3 grams of O. Sample 2 contains 20.0 grams of C and 64.2 grams of O. I must clearly be able to show the reason for my answer, and determine if the samples are of the same or different compounds.
What is the total pressure (Ptot) in the container in torr? What is the partial pressure of argon (Par) in the container in torr?
What volume of 0.0955 M HCI in millimeters is required to titrate 2.152 g of Na2CO3 to the equivalent point/ My teacher does not explain any thing and I need to understand this.
what are the resonance structures and intermediates in the formation of bromoacetanilide from the reaction of
A certain substance, intially present at 0.500 M, decomposes by second-order kinetics with a rate constant of 4.00 x 10-1 L/mol min. Calculate the time (in minutes) required for the system to reach a concentration of 0.370 M.
A 10.4-g sample of CaCl2 is dissolved in 107 g of water, with both substances at 25.0°C. Calculate the final temperature of the solution assuming no heat lost to the surroundings and assuming the solution has a specific heat capacity of 4.18 J/°C ..
1. a researcher mixed 5.00 ml of 2.03 x 10-1 m feno33 with100.00ml of 2.05 x 10-3 m kscn using 5.0 x 10-1 m hno3
A 15 gram piece of iron is heated to a temperature of 47.0 ?C and then placed in contact with a 275 g piece of copper at 20.0 ?C (Cp = 25.46 J/mol-?C). What was the final temperature of the two pieces of metal?
You then take a 10.00mL sample of the dilute acid solution as well as titrate it with the standard solution. Need 19.95mL of the standard solution to reach the endpoint. Explain what is the concentration of the original acid solution in M
Sulfuric acid (H2SO4) is a very strong diprotic acid. If 0.041 moles of sulfuric acid is mixed with water to make 169 mililiter of solution, what is the molarity of H+? Answer in units of M.
Utilize TLC to monitor a reaction that converts an alcohol into a carboxylic acid. Give diagrams to show a) the reaction is incomplete and b) the reaction has gone to completion
Determine the solubility product constant for silver fluoride at this temperature. It is not what is listed on the chart on page 773 because that chart is only for use at 25 deg C.
question an experiment shows that a 250 ml gas sample has a mass of 0.430 g at a pressure of 728 mmhg and a temperature
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