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Muriatic acid is a HCl solutin available in hardware stores. A 3.00-ml sample of muriatic acid required 15.44 ml of 2.04 M NaOH for complete neutralization. What is the molarity of HCl in the muriatic acid sample?
A 95.0 gram piece of ice at 0.0 degrees celcius is added to a sample of water at 8.0 degrees celcius. All of the ice melts and the temperature of the water decreases to 0.0 degrees celcius. How many Kg of water were in the sample?
Calculate the total mass of acetic acid dissolved in the solution contained in the volumetric flask (f) The mass(g) of acetic acid dissolved in the solution contained in the volumetric flask came drom the 25.00 ml vinegar sample.
A tanker truck carrying 2.01×10^3 kg of concentrated sulfuric acid solution tips over and spills its load. The sulfuric acid solution is 95.0% H_2SO_4 by mass and has a density of 1.84 g/L. Sodium carbonate Na_2CO_3) is used to neutralize the sulf..
How much heat (in kJ) is required to warm 16.0g of ice, initially at -11.0 C, to steam at 112.0 C? The heat capacity of ice is 2.09 J/g*C and that of steam is 2.01 J/g*C.
Biocarbonate ion can react in water to produce hydroxide ions and carbonic acid according to the equation below.
"A sample of a particular radioisotope is placed near a Geiger counter, which is observed to register 160 counts per minute. Eight hours later the detector counts at a rate of 10 counts per minute. What is the half-life of the material?"
Consider a light-sensative reaction. What energy in joules per photon, is needed to drive the reaction if delta H of the reaction is equal to 793 kJ/mol. (Remember that there are Avogadro's number of photons per mole of photons.)
A student dissolves 1.01 grams of nicotinic acid, C_6_H_5_NO_2_, in water to give 60 mL of solution having a pH of 2.67. What is the approximate value of Ka for the acid based on this observation?
If toluene(density 0.87) were used to extract ethylene bromohydrin (density 2.41) from an aqueous solution.
What is the freezing point of a solution prepared by dissolving 11.3g of Ca(NO3)2 in 115g of water? (The molal freezing point depression of constant water is 1.86 °C/m).
Which compound has the smallest molar mass?
You conduct an experiment where N2 is collected over water in a 2.12 L flask at 23.oC. At the conclusion of the experiment, the total pressure in the flask is 652. torr. What is the pressure of N2 in the flask?
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