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A 295 mL stock solution contains 2.3 M Ca(CN)2. When 100 mL of the stock solution is diluted to 120 mL, how many moles of CN- ions will be contained in the dilute solution?
Given the average bond enthalpies listed below, calculate the delta H for the reaction: N2 + 3H2 --> 2NH3
How many grams of potassium accetate must be added to 2.5 L of .250 M acetic acid
Gold can be hammered into extremely thin sheets called gold leaf. A 210. mg piece of gold (density = 19.32 g/cm3) is hammered into a sheet measuring 4.2 1.0 ft. What is the average thickness of the sheet in meters? GIVEN: 2.54 cm = 1 inch
Identify where this investment would be classified on the balance sheet of Cookie & Coffee Creations Inc. and explain why. What amount would appear on the balance sheet under each of the methods of accounting for the investment?
A key year for them is 2015, when Southeast Asia's Open Sky Agreement comes into effect, allowing unlimited flights to all 10 ASEAN members: Brunei, Cambodia, Indonesia, Laos, Malaysia, Myanmar, the Philippines, Singapore, Thailand and Vietnam.
Determine the variance for each line of the profit and loss statement in both dollar terms and percentage terms
Fall proportionately more than the change in GDP, Fall proportionately less than the change in GDP, Rise proportionately more than the change in GDP
How are permanent codes different from temporary codes? What could be the result of a system without permanent codes? Provide examples in your answer.
How has The Home Depot's profitability changed over recent years? On what measures are you basing your response? If you were one of the company's corporate managers, would you be satisfied with the trend in gross profit?
If the antiacid selected for the analysis is know to contain only milk of magnesia how could this procedure be midified
In the complex ion [ML6]n+, Mn+ has seven d electrons and L is a weak field ligand. According to crystal field theory, the magnetic properties of the complex ion correspond to how many unpaired electrons?
The half-life of a certain radioactive element is 1,250 years. What percent of the atoms remain after 7,500 years?
A solution is prepared by dissolving 159 g sucrose (C12H22O11) in enough water to produce 1.40 L solution. What is the molarity of this solution?
A 774 mL gas sample at STP is compressed to a volume of 267 mL, and the temperature is increased to 32C. What is the new pressure of the gas in Pa? Answer in units of Pa.
The reaction of 0.130 moles of a metal with an acidic aqueous solution in a calibrated calorimeter causes the temperature to increase by 49.0°C.
Important information about Molar concentrations, Calculate the molar concentrations, I-, disulfur octaoxide, disulfur trioxide.
"Crossed" or "mixed" aldol condensations are practical for synthesis, if one of the aldehydes (or ketones) has no alpha-hydrogen atoms. Explain.
Calculate the amount of heat required to completely sublime 73.0 g of solid dry ice (CO2 ) at its sublimation temperature. The heat of sublimation for carbon dioxide is 32.3 kJ/mol.
This is a study guide for naming of organic compounds, specifically alkanes and substituted alkanes. Thirty (30) questions and answers are also included. The study guide shows you
Calculate the sample weight of liquid bleach containing 5.0% by weight of NaOCl that would oxidize enough I- to consume 0.80 mL of 0.15 M sodium thiosulfate.
Determine the molar concentration of CH 3 COOH present in the vinegar?
Determine how many atoms there are in 1 gallon using your knowledge of mole calculations and unit conversions. Assume that the molecular formula for gasoline = C6H14 ,the density of gasoline =0.85 grams/mL
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