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For some iron-carbon alloy, the mass fractions of total ferrite and total cementite are 0.55 and 0.46 respectively. (a) On the base of carbon content would this alloy be classified as a steel or a cast iron? Why? (b) If the alloy is a steel, is it hypoeutectoid or hypereutectoid? If a cast iron, is it hypoeutectic or hypereutectic? Why?
Analysis of an unknown substance showed that it has a moderate melting point and is a good conductor of heat and electricity in the solid phase. Which of the following substance would have those characteristics
You have 500.0 mL of a buffer solution containing 0.20 M acetic acid (CH3COOH) and 0.30 M sodium acetate (CH3COONa). What will the pH of this solution be after the addition of 20.0 mL of 1.00 M NaOH solution? [Ka = 1.8 ´ 10-5]
Calculate the number of moles of solute present in each of the following solutions: a)245 mL of 1.50 M HNO3 b) 50.0 mg of an aqueous solution tha tis 1.25 m NaCl c) 75.0 g of an aqueous solution that is 1.50% sucrose by mass
Consider a solution resulting from the mixing of precisely 50.0 mL of 2.0 M NaOH with 50.0 mL of 2.0 M HCl. Will the mixture be corrosive and damage the skin or will it become a salt solution that is safe enough to drain down the sink.
Given the following balanced chemical equation 2CH3H6+9O2-->6CO2 +6H2O, if 15.7 mol of water are formed, how many mol of O2 reacted
Cyclopropane, C3H6 is an anesthetic given by inhalation. How many grams are in 0.23 mole of cyclopropane
A sample of oxide of antimony (Sb) contains 30.5g of antimony combined w/10g O2. What's the simplest formula for the oxide
A gas occupying a volume of 155 mL at a pressure of 0.970 atm is allowed to expand at constant temperature until its pressure reaches 0.541 atm. What is its final volume
Indicate the approximate location (cm-1) in the IR Spectrum where you would expect to see one or two absorptions that distinguish the compounds in Diethyl Ether.
the dipole measured for is 0.380d . the bond distance is 161pm . what is the percent ionic character of the
Given a pure sample that is known to be either pure benzoic acid or 2-naphthol, describe a procedure you might use to determine the identity of the sample, assuming spectroscopy is not available.
When extracting caffeine from tea why do you have to use cold NaOH and water vs. room temperature
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