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Why do proteins and carbs have the same amount of energy per gram while fat has more than twice that?
A 0.0678g sample of tin sulfate was dissolved in dilute HCl and treated with 10% BaCl2 solution. The BaSO4 precipitate weighed 0.0737 g. Determine the formula of this sulfate of tin.
Rank the given solutions in aquous form from lowest to highest boiling point:
Given that one mole of NaOH reacts exactly with one mole of potassium hydrogen phthalate, write the chemical reaction and calculate the number of milliliters of .100 M NaOH required to neutralize the .500 gram sample of potassium hydrogen phthalat..
a solution is 40 acetic acid by mass. the density of this solution is 1.049 gml. calculate the mass of pure acetic acid
Problem- Part 1) Why reaction of 2-butanone with LiAlH4 results in the formation of a racemic mixture rather than a single enantiomeric product?
What is the ratio of HCO3- to H2CO3 in an exhausted marathon runner whose blood pH is 7.1? Note: There is no need to consider the Ka2, use only the Ka1.
What is the pH of the solution formed by adding 2.77 grams of nicotinic acid (M. Wt. = 123.11 g/mol) to 250 ml of 0.050 M NaOH? For Nicotinic Acid Ka=1.4x10-5 and Kb=7.1x10-10
The first-order decomposition of SO2Cl2 to sulfur dioxide gas and chlorine gas at 320°C has a half-life of 8.75 hr. If one begins with 600. mmHg of pure SO2Cl2 in a 5.00-L flask at 320°C
if equal masses of N2 and H2 (7.00 grams each) are combined to produce ammonia NH3, how many grams of ammonia could be produced at maximum yield?
The student then took 100 ml of the Mg(OH)2 solution and reacted with HCl(aq). If 13.75 ml of .010M HCL reacted with the OH-(aq), what was the concentration of hydroxide ion in the 100ml solution?
Problem- Calculate the standard free energy of the following reactions at 25 C using standard free energies of formation
0.650L of 0.420 M sulfuric acid is mixed with 0.600L of 0.240 M potassium hydroxide. What concentration of sulfuric acid remains after neutralization
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