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Baking powder is a mixture of cream of tartar ( KHC 4 H 4 O 6 ) and baking soda ( NaHCO 3 ) . When it is placed in an oven at typical baking temperatures (as part of a cake, ¡or example), it under goes the following reaction ( CO 2 makes the cake rise): msp; ( KHC 4 H 4 O 6 ) ( s ) + NaHCO 3 ( s ) → KNaC 4 H 4 O 6 ( s ) + H 2 O ( g ) + CO 2 ( g ) u decide to make a cake one clay, and the recipe calls for baking powder. Unfortunately, you have no baking powder. You do have cream of tartar and baking soda, so you use stoichiometry to figure out how much of each to mix. the following choices, which is the best way to make baking powder? The amounts given in the choices are in teaspoons (that is, you will use a teaspoon to measure the baking soda and cream of tartar). Justify your choice. sume a teaspoon of cream of tartar has the same mass as a teaspoon of baking soda. l type='a'> Add equal amounts of baking soda and cream of tartar. i>Add a bit more than twice as much cream of tartar as baking soda. i>Add a hit more than twice as much baking soda as cream of tartar. i>Add more cream of tartar than baking soda, hut not quite twice as much. i>Add more baking soda than cream of tartar, hut not quite twice as much.

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Introductory Chemistry: A Foundati...

9th Edition
Steven S. Zumdahl + 1 other
Publisher: Cengage Learning
ISBN: 9781337399425

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Introductory Chemistry: A Foundati...

9th Edition
Steven S. Zumdahl + 1 other
Publisher: Cengage Learning
ISBN: 9781337399425
Chapter 9, Problem 17ALQ
Textbook Problem
216 views

Baking powder is a mixture of cream of tartar ( KHC 4 H 4 O 6 ) and baking soda ( NaHCO 3 ) . When it is placed in an oven at typical baking temperatures (as part of a cake, ¡or example), it under goes the following reaction ( CO 2 makes the cake rise):

msp;  ( KHC 4 H 4 O 6 ) ( s ) + NaHCO 3 ( s ) KNaC 4 H 4 O 6 ( s ) + H 2 O ( g ) + CO 2 ( g )

u decide to make a cake one clay, and the recipe calls for baking powder. Unfortunately, you have no baking powder. You do have cream of tartar and baking soda, so you use stoichiometry to figure out how much of each to mix.

the following choices, which is the best way to make baking powder? The amounts given in the choices are in teaspoons (that is, you will use a teaspoon to measure the baking soda and cream of tartar). Justify your choice.

sume a teaspoon of cream of tartar has the same mass as a teaspoon of baking soda.

l type='a'>

  • Add equal amounts of baking soda and cream of tartar.
  • i>Add a bit more than twice as much cream of tartar as baking soda.

    i>Add a hit more than twice as much baking soda as cream of tartar.

    i>Add more cream of tartar than baking soda, hut not quite twice as much.

    i>Add more baking soda than cream of tartar, hut not quite twice as much.

    Interpretation Introduction

    Interpretation:

    Among the given choices, the best way of making the baking powder is to be identified.

    Concept Introduction:

    Stoichiometry helps in determining the relationship between the number of moles of the reactants and products that are involved in a reaction. For proper calculations, the reaction must be balanced.

    The moles of any substance are calculated by the formula,

    Moles=Mass(g)Molarmass.

    Explanation of Solution

    Reason for correct option:

    The given reaction is,

    KHC4H4O6(s)+NaHCO3(s)KNaC4H4O6(s)+H2O(g)+CO2(g)

    The molar mass of cream of tartar, KNaC4H4O6 is 188g/mol.

    The molar mass of baking soda, NaHCO3 is 84g/mol.

    The mass of both KNaC4H4O6 and NaHCO3 is supposed to be 1g.

    The moles of any substance are calculated by the formula,

    Moles=Mass(g)Molarmass

    Substitute the value of mass and molar mass for KNaC4H4O6 in the above equation.

    Moles of KNaC4H4O6=1g188g/mol=0

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    Chapter 9 Solutions

    Introductory Chemistry: A Foundation
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