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A sample of 0.87g citric acid and 1.13g of sodium bicarbonate was added to 30mL deionised water in a coffee cup calorimeter with an initial temperature of 22 °C. After 3 mins, the temperature decreased to 18.3°C. 1. What is the change in temperature? K 2. Based on the temperature change, what type of reaction is it?

A sample of 0.87g citric acid and 1.13g of sodium bicarbonate was added to 30mL deionised water in a coffee cup calorimeter with an initial temperature of 22 °C. After 3 mins, the temperature decreased to 18.3°C. 1. What is the change in temperature? K 2. Based on the temperature change, what type of reaction is it?

Chemistry: Matter and Change
Chemistry: Matter and Change
1st Edition
ISBN:9780078746376
Author:Dinah Zike, Laurel Dingrando, Nicholas Hainen, Cheryl Wistrom
Publisher:Dinah Zike, Laurel Dingrando, Nicholas Hainen, Cheryl Wistrom
Chapter15: Energy And Chemical Change
Section: Chapter Questions
Problem 78A: Alloys When a 58.8-g piece of hot alloy is placed in125 g of cold water in a calorimeter, the...
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A sample of 0.87g citric acid and 1.13g of sodium bicarbonate was added to 30mL deionised water in a coffee cup calorimeter with an initial temperature of 22 °C. After 3 mins, the temperature decreased to 18.3°C. 1. What is the change in temperature? K 2. Based on the temperature change, what type of reaction is it?
Transcribed Image Text:A sample of 0.87g citric acid and 1.13g of sodium bicarbonate was added to 30mL deionised water in a coffee cup calorimeter with an initial temperature of 22 °C. After 3 mins, the temperature decreased to 18.3°C. 1. What is the change in temperature? K 2. Based on the temperature change, what type of reaction is it?
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