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Two solutions, "A" and "B", are labeled "0.21 M CaCl2" and "0.34 M CaCl2", respectively. Both solutions contain the same number of moles of CaCl2. If solution A has a volume of 25 mL, what is the volume of solution B?
You buy a bottle of 500 mg vitamin C tablets and determine by titration that, on average, each table contains 7.00 x 10-4 moles of ascorbic acid (HC6H7O6). The molar mass of ascorbic acid is 176.12 g/mol. Calculate the average mass percent ascorbi..
Show how you would synthesize meso-2,3-butanediol from acetylene and any compounds containing no more than four carbon atoms.
How many moles of NaOH are used
A 0.2254 g sample of naphthalene (C8H10, 128.16 g/mol) was burned in a bomb calorimeter with a heat capacity of 2.18 kJ/K, and the temperature increased by 4.16°C. What is the molar enthalpy of combustion for this compound
we need to dry something like protein and drugs, how to deal with them to avoid the deactivation phenomenon?
a nitric acid solution containing 71.0 hn3 by mass has a density of 1.42 gml. how many moles of hno3 are present in
an antifreeze solution prepared by mizing equal volumes of ethylene glycol, C2H6O2 (density 1.12g/cm^3) with water (density 1.00 g/cm^3). Estimate the freezing point of the mixture
A 36.3 mL aliquot of 0.0529 M H2SO4 (aq) is to be titrated with 0.0411 M NaOH (aq). What volume (mL) of base will it take to reach the equivalence point?
Commercial grade hcl solutions are typically 39.0% by mass HCL in water. Determine the molarity of the HCl solution if it has a density of 1.20 g/mL
Consider a metal atom surrounded by the cube- shaped arrangement of eight ligand atoms (Oh symmetry). 1. Derive the reducible representation for the 8 sigma-bonds.
a manufacturer of metal polishing compound which can polish SS items by buffing method. Currently am using Calcined Alumina Polishing grade as a main ingredient but i need much more polish.
an electron is confined to a linear region with a length of the same orderas the diameter of an atom (about 100 pm)
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