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Using a sample of 35.00 mL of HCl solution after titrating it with a 0.1477 M NaOH solution. it is observed that a volume of 29.15 mL of KOH was neede to complete the process of titration. Determine what is the concentration of this unknown HCl solution?
Using a Sample of 0.3991 grams of an unknown monoprotic acid, HA, which combines with Sodium hydroxide according to the balanced equation HA + NaOH ® NaA + H2O when 35.30 mL of 0.1086 M Sodium hydroxide is required to titrate the acid to the equiv..
Evaluate the energy of an electron excited from a hydrogen atom using Bohr's model. Determine the maximum wavelength of energy needed to observe a photoelectric effect for potassium.
Which corresponds to approximately 2.65 * 104 mol of electrons at the voltage of a fuel cell and calculate how much heat energy is absorbed?
Explain why it takes longer time when anyone cook an egg in boiling water while camping at in elevation of 0.5km in the mountain than it does it home.
Neon(Ne) is a noble gas with atomic number 10 this is a odorless, colorless, inert monatomic gas under standard conditions but explain some facts about Neaon.
A student has invented a new temperature scale, the Zuban scale ,In common with the Celsius, Kelvin and Fahrenheit scales, it is a linear scale.
Calculate the mass in grams for a sample of Al that absorbs 1.70kJ when the temperature increases from 56 degree Celsius to 177 degree Celsius?
What masses of iron(III)oxide and aluminium must be used to produce 15.0g iron? What is the maximum mass of aluminium oxide that could be produced?
CHEM 354 Extended Problems, The variation of EMF for the cell below with temperature is shown in the graph below.
The purpose of this experiment is to find out which fabric out of polyester, polypropylene, cotton and wool is the most suitable to make a sling back chair.
A distance of 200 ft must be taped in a manner to ensure a standard deviation smaller than ± 0.03 ft. What must be the standard deviation per 100 ft tape length to achieve the desired precision?
Calculate the major product in the Williamson ether synthesis between 1-bromopentane and sodium 1-phenylethoxide. correct stereochemistry of the product must be shown in its with four bonds - with H - at the chirality center.
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