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m_a_m_a [10]
3 years ago
6

When hcl(aq) and naoh(aq) are mixed in a beaker, the beaker feels warm to the touch. what is known about the enthalpy of this re

action??
Chemistry
1 answer:
elixir [45]3 years ago
4 0

HCl(aq) + NaOH(aq) —> NaCl(aq) + H2O(l)

When you mixed HCl and NaOH in a beaker, it produces NaCl and H2O. HCl is a strong acid and NaOH is a strong base. Acid-base reactions are exothermic. Heat was released by the reaction of the acid and the base to water.

Exothermic reactions mean that the energy of the products is less than the energy of the reactants, and so the change in enthalpy is negative.

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Answer: E=∆H*n= -40.6kj

Explanation:

V(CO) =15L=0.015M³

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3 0
2 years ago
A 40.0 g drinking glass is filled with hot liquid. The liquid transfers 1,000. J of energy to the glass. If the temperature of t
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2.00 g C2H5OH ( 1 mol C2H5OH / 46.08 g C2H5OH ) ( 2 mol CO2 / 1 mol C2H5OH ) = 0.0868 mol CO2
0.0868 mol CO2 ( 6.022x10^23 molecules / mol ) = 5.23x10^22 molecules CO2
4 0
3 years ago
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