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What volume in mL of 0.322 M magnesium hydroxide (Mg(OH)2) is required to reach the equivalence point (neutralize) 45.0 mL of 0.319 M hydroiodic acid (HI)? 

What is the sum of coefficients when the neutralization reaction occurs between nitric acid (HNO3) and barium hydroxide (Ba(OH)2)?   

HEPES buffer (C8H18N2O4S) in used for cell cultures. A researcher needs 0.0100 M of HEPES. What mass of HEPES in grams would be needed to produce 320.0 mL of solution. 

Below is an image of a coffee cup calorimeter with 92.7 g or water.  The temperature of water is measured before and after the addition of an 50.0 g of unknown metal.  How much energy is gained or lost by the water.  The specific heat of water is s = 4.184 .

Using the image below regarding a participation reaction to determine the spectator ions and the net ionic equations? 

The following reaction is used to produce copper metal:

Calculate the enthalpy of the combustion of butene based on the standard enthalpies of formation in the table below. 

Determine if the following processes are endothermic or exothermic.  Breaking a covalent bond [1]

Use the following reaction identify the oxidizing and reduction agents.

Estimate the enthalpy of the reaction from average bond energies.