Ammonium nitrate dissolves spontaneously and endothermally in water at room temperature. What can you deduce about the sign of
for this solution process?
Step 11 of 2
If ammonium nitrate dissolves spontaneously in water, . If is negative and is positive, the sign of must be positive. Furthermore, at room temperature.
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An 8.65-g sample of an unknown group 2A metal hydroxide is dissolved in 85.0 mL of water. An acid-base indicator is added and the resulting solution is titrated with 2.50 M HCl(aq) solution. The indicator changes color, signaling that the equivalence point has been reached, after 56.9 mL of the hydrochloric acid solution has been added. What is the molar mass of the metal hydroxide?