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Calculate the pH of a 0.36 M solution of NaHSO4. If solid Na2CO3 is added to a solution of NaHSO4, what reaction occurs between the CO32- and HSO4? ions?
how can we calculate the weight of CaCO3 per 10^6 ml unknown sample.the weight of CaCO3 per 25 ml of unknown sample is 5.71*10^-3
A colored compound or complex ion provides a preliminary indication of the presence of which of the aluminum Group ions? Give the chemical formula
How many moles contain each of the following? 3.75 x 10^24 molecules CO2
Compare and contrast conventional current regulations and oversights that exist in the United States with that of nonconventional medicine.
What quality of heat energy, in J, is required to raise the temperature of 454g of tin from room temperature, 25.0C to its melting point, 231.9C, and then melt the tin at that temperature
What is the molarity of an aqueous solution containing 75.3 g of glucose (C6H12O6, mol wt = 180 g/mole) in 35.5 mL of solution
Careful spectral analysis shows that the yellow light of the sodium lamp is made up of photons of two wavelengths, 589.0 nm and 589.6 nm. What is the difference in energy (in joules) between photons with these wavelengths?
How many grams of water can be cooled from 45 C to 23 C by the evaporation of 63 of water? (The heat of vaporization of water in this temperature range is 2.4 kJ/g . The specific heat of water is 4.18 J/g*K .)
How many cm3 of carbon tetrachloride are produced when 8 L of chlorine are allowed to react with .75L of methane at STP?
What was the volume occupied by the sample under the new conditions - Determine what volume of 3.00M HCl in liters is required to react
For the gas phase decomposition of t-butyl alcohol, (CH3)3COH (CH3)2C=CH2 + H2O the rate constant at 811 K is 1.05E-3 /s and the rate constant at 846 K is 5.64E-3 /s. The activation energy for the gas phase decomposition of t-butyl alcohol is
Sodium-24, which is used to locate blood clots in the human circulatory system, has a half-life of 15.0 hours. A sample of sodium-24 with an inital mass of 34.1 g is left to decay for 60.0 hours. Calculate the final mass of the sodium sample
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