# Is Mg and HCl exothermic?

## Is Mg and HCl exothermic?

Magnesium and hydrochloric acid is exothermic as the temperature increases.

## What is the enthalpy of Mg?

The standard enthalpy of formation AH~(Mg) of the aqueous magnesium ion was given as -461.96 kJ mol- at 298.15 K in N.B.S. Circular 500.

## What is the enthalpy change of MgO HCl?

2, and assume the specific heat of the HCl solution is the same as water (0.00418 kJ/g-xb0 C). Calculate the heat of reaction in kilojoules per mole of MgO.Part A.Mass of MgO (g)1.0328Final temperature of MgO/HCl (xb0 C)28.52 more rows

## How do you calculate delta H of Mg HCl?

Explanation:

• 4mass HCl1xd750. 50g.
• mol Mg0.1324.3. (Im taking the Ar of magnesium to be 24.3)
• 4u0394rHu22122.46625.350xd710u22123. u2212461 kJ molu22121 (3sf)
• mol Mg0.9724.3. 0.0399 mol.
• u0394rHu22123.1350.0399. u221278.57 kJ molu22121. (see what I mean?)
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May 10, 2018

## What type of reaction is Mg and HCl?

single replacement

## Why is MgO and HCl exothermic?

Magnesium oxide reacts exothermically with hydrochloric acid and produces magnesium chloride, liquid water, and heat. When solid Mg reacts with HCl (hydrochloric acid), magnesium chloride (MgCl2), hydrogen gas, and heat are produced. Heat is produced because the reaction is exothermic.

## What happens when HCl and magnesium react?

Magnesium reacts with hydrochloric acid, producing hydrogen gas according to equation 1. When the magnesium reacts with the acid, the evolved hydrogen gas is collected by water displacement and its volume measured.

## Is Mg endothermic or exothermic?

exothermic reaction

32.67

## What is the enthalpy of magnesium chloride?

u0394fHxb0solid (kJ/mol)-641.62MethodReviewReferenceChase, 1998CommentData last reviewed in December, 1965

## How do I calculate enthalpy?

Use the formula u2206H m x s x u2206T to solve. Once you have m, the mass of your reactants, s, the specific heat of your product, and u2206T, the temperature change from your reaction, you are prepared to find the enthalpy of reaction. Simply plug your values into the formula u2206H m x s x u2206T and multiply to solve.

## What is the enthalpy change of MgO?

The standard enthalpy of formation for MgO(s) is -601.7 kJ/mol

exothermic

## What is the enthalpy of HCl?

u221292.3 kJ/mol

## What is the reaction between HCl MgO?

Magnesium reacts with hydrochloric acid according to the equation: Mg(s) + 2 HCl(aq) –x26gt; MgCl 2(aq) + H 2(g) This demonstration can be used to illustrate the characteristic reaction of metals with acid, a single replacement reaction, or to demonstrate the generation of hydrogen gas.