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Write a balanced equation for the decomposition reaction described, using the smallest possible integer coefficients.
When carbonic acid decomposes, water and carbon dioxide are formed.
An unknown sample with a molecular mass of 180.og is analyzed to yeild 40% c, 6.7% H, and 53.3% o. What is the empirical formula and the molecular formula of this compound?
A 347 ml sample of solution contains 5.1 g of CaCl2. Calculate the molar concentration of chloride ion in this solution
Imagine a researcher allowed the paper chromatogram to develop for far longer than necessary in the mobile phase, such that the solvent front ran into the top edge of the paper and the spots continued to move.
What is the molarity of a sulfuric acid solution if 40.2 mL of this solution is required to titrate 6.50 grams of sodium hydrogen carbonate?
What are the mole fractions of ethanol and water in a solution prepared by mixing 55 mL of ethanol with 45 mL of water at 25 degrees celsius
The value of ΔE for a certain change is 1325 J. During the change, the system releases 873 J of heat.How much work, expressed in joules, was involved?
What is the H3O+ concentration of the solution?
How much heat is needed to convert 923 g of ice at -30°C to steam at 119°C. (The specific heats of ice, steam, and liquid are 2.03 J/g · °C, 1.99 J/g · °C, and 4.18 J/g·°C, respectively. The heat of fusion is 6.02 kJ/mol and heat of vaporization i..
an experiment was performed to determine the amount of pyridoxine (B6) in a vitamin tablet. A tablet weighing 0.4006g was dissolved in 25mL of solution
Calculate mass of chromium III hyrodixide, c- Calculate the molar concentration of ions remaining in solution after reaction has taken place (total cocentrations of Cr3+, OH, K, NO3-)
Write molecular, total ionic, and net ionic equations for the reaction of AgNO3 and NaCl (Use the lowest possible coefficients. Include states-of-matter under SATP conditions in your answer.)
What is the pH of a solution which results from mixing 150 mL of 0.50M acetic acid and 150 mL of 0.50M sodium hydroxide at 25oC?
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