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Using an aqueous solution of 75.00 mL of HCOOH is titrated with a 0.150 M sodium hydroxide(aqueous solution ).after observations it is found the NaOH solution of that 21.25 mL is required to reach the equivalence point.. compute the pH if NaOH solution of the 10.00 mL has been mixed. pKa of HCOOH = 3.74
Magnesium is used in lightweight alloys for airplane bodies and other structures. The metal is obtained from seawater in a process that includes precipitation, neutralization, evaporation
A key oxidative step(s) in the B-oxidation cycle of fatty acids includes: a. addition of water to a double bond b. generation of a double bond from two adjacent -CH2 carbons
What volume of oxygen gas is required to react completely with 0.132 mol of glucose (C6H12O6) according to the following reaction at 0 C and 1 atm
calculate the amount of energy necessary to vaporize 10 g of acetone at its boiling point if the heat of vaporization is 29.1 kJ/mol.
Final temperature after urea dissolves in water, What is the final temperature of the solution in kJ? The density of water is 4.18 J/g·°C. What is the final temperature in °F? F = °C x 1.8 + 32 (Round your answer to one decimal place)
Lauryl alcohol, C12H25OH, is prepared from coconut oil; it is used to make sodium lauryl sulfate, a synthetic detergent. What is the molality of lauryl alcohol in a solution
One of those bands consists of radio waves with a wavelength near 20.m . Calculate the frequency of these radio waves. Be sure your answer has the correct number of significant digits.
Prepare the molecular formula for given compounds and determine the amount of molecules present and write the molecular formula and determine how many grams of each you have
The thermostat in a refrigeraor filled with cans of soft drinks malfunctions and the temperature drops to below 0 degree Celsius. The contents of the cans of diet sodas freeze, rupturing many of the cans.
The vapor pressure of pure water at 25°C is 23.77 mm Hg. What is the vapor pressure, in mm Hg of water above a solution that is 3.500 m glucose, C6H12O6
a 80.0 ml volume of 0.25 m rm hbr is titrated with 0.50 m rm koh. calculate the rm ph after addition of 40.0 ml of rm
The Cl2 removed occupies a 10.0 L container at .500 atm at 25C. How many g of Ne are present in the original container?
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