Alcohol in alcoholic beverages
How many molecules of ethanol CH2H5OH (the alcohol in alcoholic beverages) are present in 145mL of ethanol? The density of ethanol is 0.789g/cm3
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When 0.6 g of impure zinc reacted with an excess of hydrochloric acid, 135 mL of hydrogen was collected over water at 10?C. The external pressure was 745.4 Torr.
a) A saturated silver chloride solution contains 1.58 x 10-4 g silver chloride per 100 mL solution. What is the molarity of the solution?
A 27 gram sample of an unknown hydrocarbon was burned in excess oxygen to form 88 g of CO2 and 27 g of H20? What is a possible molecular formula of the hydrocarbon?
Use the equation given to solve the following.Na3PO4+3AgNO3=Ag3PO4+3NaNO3.a) how many moles of NaPO4 would be required to react with 3.5 moles of AgNO3. B) How many moles of NaNO3 can be produced from 0.50 moles of Na3PO4? c).
What volume of hydrogen gas is produced when 1.40 mol of carbon monoxide reacts completely according to the following reaction at 0oC and 1 atm?
A student wants to dissolve the maximum amount of CaF2 (Ksp = 3.2 * 10^-11 ) to make 1 Liter of aqueous solution. a) Into which of the following solvents should she dissolve the salt ?
If we have a solution that contains 0.022 M Calcium and 0.014 Magnesium and we have to use potassium hydroxide to selectively precipitate one of the ions, while leaving the other ion in the solution.
A 184-mg sample of Na2CO3 is dissolved in H2O to give 3.00L of solution. What is the concentration of Na+ in parts per million (ppm)?
Diethyl ether is a volatile organic compound. the vapor pressur of diethyl ether is 401 mmhg at 18 degrees C and th hat of vaporization = 26.o kJ/mol. calcuate the vapor pressure of diethyl ether at 0 degrees c.
A 14.0-g sample of CaCl2 is dissolved in 112 g of water, with both substances at 25.0°C. Calculate the final temperature of the solution assuming no heat lost to the surroundings and assuming the solution has a specific heat capacity of 4.18 J
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Given Hofstede's dimensions, in what way do the cultures significantly differ? How are they similar?
What is vertical integration, and under what conditions would a company seek to "vertically integrate" in order to enhance their competitive advantage
Problem: Explain the purpose of the audit plan. When and how you would submit an audit plan to the auditee?
Problem 1: Who are the direct competitors of Puregold? Problem 2: Who are the target market of Puregold?
What is the Systems Development Life Cycle (SDLC), and how does it relate to WUCB113 and the study of Human-Centred Systems?
In a short paragraph explain the concept of "business doesn't operate in a silo". What is the main goal of the business?
Presentation must include the following: a. Description of the Marketing Information System (MIS)