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When 5.56 mg of terephthalic acid are burned complete,y in excess oxygen, 11.78mg of carbon dioxide and 1.81 mg of water are produced. If the molar mass of terephtalic acid is experimently determined to be 170 ±10 g/mole, what is its molecular formula?
If you are given a 0.31 g piece of sodium metal to react with water, how many moles of HCl would it take to neutralize the sodium hydroxide produced
When doing the kinetic trial, Peyton mistakenly omitted the starch solution from the kinetic trials. How will this omission change the appearance of the resultant solution (from mixing solutions A&B) from that of a correctly completed expiernment?..
what is the molality of a solution in which 3.0 moles of NaCl is dissolved i 1.5Kg of water?
How much heat is needed to convert 923 g of ice at -30°C to steam at 119°C. (The specific heats of ice, steam, and liquid are 2.03 J/g · °C, 1.99 J/g · °C, and 4.18 J/g·°C, respectively. The heat of fusion is 6.02 kJ/mol and heat of vaporization i..
Determine the molar concentration of CH 3 COOH present in the vinegar?
The compound has a carbonyl group and cannot be oxidized to carboxylic acid. what is the structure of the compound consistant with this data
NH4CO2NH2(s)->2NH3(g) +CO2(g) (at equilibrium) starting with only the solid it is found at 40C the total gas pressure is 0.363 atm calculate equilibrium constant Kp
A student heated a 25.0g piece of a metal to a temp of 100.0C and placed it in 100.0g of water, initially at a temperature of 10.0C. Determine the final temperature of the system(aluminum and water)
suppose you wish to make a .879 L of .250 M silver nitrate by diluting a stool solution of .675 M silver nitrate. How many milliliters of silver nitrate do you need to use.
In a seperate trial the student puts 214 mL of the same liquid into the same flask at the same conditions. What will the pressure measure (in kPa) in the second trial?
What is the most common oxidation state of the chalcogens compared to the halogens? What is an explanation for the difference?
an 18.0-g sample of magnesium is completely burned in the presence of air to form magnesium oxide. what is the mass of
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