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Question- a 25.00ml sample of 0.250 M hydrochloric acid is completely neutralized with 0.125 M sodium hydroxide solution. The ml of the NaOH solution required is?
Please explain above problem in step by step manner so I can easily understand it
The I2 that did not react with ascorbic acid is then determined in a thiosulfate reaction. If 40.0mL of 0.4445M I2 was added to a sample containing vitamin C, the unused I2 required 19.05mL of 0.142M S2O32- to react. How many moles of vitamin C we..
a 19.3 g mixture containing sodium sulfide and calcium chloride. 86.9 sodium sulfide and 63.9 by mass chlorine. what is
Question- Calculate the energy (in J/mol) and Constant-Volume Heat Capacity and Constant-Pressure Heat Capacity (in J/mol*K) for the following gas molecules at 298K using the Equipartition Theorem.
A flask contains 400 ml of .05 M phosphate buffer that has a ph of 7.2. What volume of .05 M NaOH should be added to increae the ph to 8.2? (please show all steps in math as best as possible)
a) A 2.00 g sample of a gas SX6 has volume of 329.5 cm^3 at 1.00 atm and 20 C. WHat element is X. b) What is the density of carbon monoxide gas at 127 C and 763 mm Hg.
Describe and explain the possible effect on your results of the following experimental errors or variations. You reaction mixture had an oily later on top when you added the 3 M sulfuric acid.
Explain simple chemical tests to distinguish between the compounds in each of the subsequent pairs. Explain exactly what you would do and what you would see.
An ionic crystal unit cell is composed of two ions, X and Y. The empirical formula of this solid is XY2. If the X ions occupy the eight lattice points at the corners of the unit cell and on all six faces
100 ml of 1 M acetic acid (pKa 4.76) are placed in a flask. what is the ph if 2mL of 1 M KOH are added, and the total volume is adjusted to one liter with water.
lutonium-239 is a byproduct of the fission reaction used to produce energy in nuclear power reactors. It has a half-life of 24,400 years. A student determines that it will take 97,600 years for the radioactivity of a Pu-239 sample to drop to one-e..
a chemist weighed out 5.25 g of a mixture containing unknown amounts of baos and caos and placed the sample in a 1.50-l
The freezing point of pure benzene is 5.5 Celsius and its freezing point constant is 5.12 C/m. Calculate the molecular weight of the unknown.
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