When a Sample of Aqueous Hydrochloric Acid Was Neutralized with Aqueous

question 32

Multiple Choice

When a sample of aqueous hydrochloric acid was neutralized with aqueous sodium hydroxide in a calorimeter,the temperature of 100.0 g of water surrounding the reaction increased from 25.0°C to 31.5°C.If the specific heat of water is 1.00 cal/(g•°C) ,calculate the quantity of energy in calories involved in this neutralization reaction.

• A)1000 cal
• B)100.0 cal
• C)6.50 cal
• D)1250 cal
• E)650 cal

---

Definitions:

Matrix

A rectangular array of numbers, symbols, or expressions, arranged in rows and columns.

Matrix

A rectangular array of numbers, symbols, or expressions arranged in rows and columns used in mathematics to perform linear transformations and solve systems of linear equations.

Determinant

A scalar value that can be calculated from the elements of a square matrix and encapsulates certain properties of the matrix. It is often used to determine the invertibility of the matrix.

Cramer's Rule

A theorem in algebra that provides an explicit solution to a system of linear equations with as many equations as unknowns, using determinants.