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A solution is prepared by dissolving 4.21 g of a nonelectrolyte in 50.0 g of water. If the boiling point increases by 0.203 C, what is the molar mass of the solute? The boiling point elevation constant for water is .512 C/m.
Chemistry: Reaction between Sodium Bicarbonate and Citric Acid, Question: The fizz produced when an Alka Seltzer© tablet is dissolved in water is due to the reaction between sodium bicarbonate and citric acid, according to the following equation:
The standard enthalpy of formation of the metallocene bis(benzene)chromium was measured in a calorimeter. It was found for the reaction Cr(C6H6)2(s) → Cr(s) + 2 C6H6(g)
The osmotic pressure of the solution is 1.21 atm at 27 °C. What is the molar mass of the solute?
What is the total number of valence electrons that must be shown in the Lewis structure for magnesium fluoride B. How many dots would be shown in the Lewis symbol for phosporus. Use a number, not a word.
Working on a lab report and need to answer the question: why would any insoluble hydroxide tend to dissolve in acidic solution?
What did you observe in the reactions of zinc with 4 different acids: HCL, H2SO4, H3PO4, and CH3COOH
A graduated cylinder contains 110. mL of water. A 10.0 g piece of iron (density = 7.86 g/cm3) and a 18.9 g piece of lead (density = 11.3 g/cm3) are added. What is the new water level in the cylinder?
An 18-karat gold necklace is 75% gold by mass, 16% silver, and 9.0% copper. How many grams of copper are in the necklace? If 18-karat gold has a density of 15.5
How many moles of hydrofluoric acid (ka=6.8e-4) must be added to 500 ml of .10M sodium fluoride to give a buffer of pH 3.20
hydrogen gas was collected over water in a eudiometer at 26 degrees c when the atmospheric pressure was 726 mm hg. What was the pressure of the hydrogen gas?
What is the structure of the most abundant acylium ion (and resonance structure) that would be observed in mass spectral analysis
a mass of 0.120 g was dissolved in water and neutralized with 21.0 mL of NaOH. Calculate the molarity of NaOH.
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