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A 20ml volume of previously boiled, deionized water is added to the Erlenmeyer flask to prepare the sample for titration. Define why this volume is not critical to the analysis.
How many moles of water will be formed from 0.2 mole of CH4 reacting with enough O2. In this reaction CH4+2O2--->CO2+2H2O
If 75ml of a 0.75 M HCl are mixed with 300 ml of a 1.5 M HCl solution, what is the molarity of the resulting solution
Determine the molecular geometry of each of the following molecules
What is the mass percent composition of oxygen in a compound having the empirical formula C10H16O3
The principal quantum number, n, describes the energy level of a particular orbital as a function of the distance from the center of the nucleus. Additional quantum numbers exist to quantify the other characteristics of the electron.
Hypervenilation raises the pH of the blood in a condition known as respiratory alkalosis. Common treatment is to have the patient breathe into a paper bag,
how many moles are there of the reducing agent. What is the molarity of the reducing agent? Oxidizing agent --> KMnO4 Reducing Agent --> Fe +2 Volume of Fe +2 = 25 mL Concentration of KMnO4 = 0.1290 M
How many moles of chloride were present in the unknown. d. What mass of cholride was present in the unknown? e. What was the mass percentage of cholride present int the original sample
Acetaminophen was reacted with K2CO3 and iodoethane to yield phenacetin. Would a similar reaction take place if cyclohexanol, K2CO3, and iodoethane were mixed together. Explain.
The compound trichlorosilane (SiCl3H) has a vapor pressure of 0.258 atm at -2 degrees celsius. What is the normal boiling point ( the molar heat of vaporization of Trichlorosilane is 28.8 kj/mol)
For the reaction 2CH2O(g) + O2(g) ? 2HCOOH(l), if 4.19 × 1022 molecules of formaldehyde (CH2O) react with excess oxygen, what is the theoretical yield of formic acid (HCOOH)
what is the maximum number of electrons that can be accommodated in a all the 5g orbitals 8. b all the 6f orbitals and
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