
(a)
Interpretation: To identify the purpose of BHA food additive.
Concept introduction: Food additives are the substances which are added to the food to preserve their flavor or increase its appearance, taste, or other qualities. Some of the additives have been used since long time; for instance, preserving the food with vinegar, preserving sweets or by using sulfur dioxide as with wines. With the beginning of processed foods in the twentieth century, many food additives have been introduced in our daily life, which are of both natural and synthetic origin. Sweeteners are added to foods for flavoring. Sweeteners are used to keep the calories of the food low, or in case of ailment like tooth decay, diabetes mellitus, or diarrhea.
(b)
Interpretation: To identify the purpose of FD&C Blue #2 food additive.
Concept introduction: Food additives are the substances which are added to the food to preserve their flavor or increase its appearance, taste, or other qualities. Some of the additives have been used since long time; for instance, preserving the food with vinegar, preserving sweets or by using sulfur dioxide as with wines. With the beginning of processed foods in the twentieth century, many food additives have been introduced in our daily life, which are of both natural and synthetic origin. Sweeteners are added to foods for flavoring. Sweeteners are used to keep the calories of the food low, or in case of ailment like tooth decay, diabetes mellitus, or diarrhea.
(c)
Interpretation: To identify the purpose of saccharin food additive.
Concept introduction: Food additives are the substances which are added to the food to preserve their flavor or increase its appearance, taste, or other qualities. Some of the additives have been used since long time; for instance, preserving the food with vinegar, preserving sweets or by using sulfur dioxide as with wines. With the beginning of processed foods in the twentieth century, many food additives have been introduced in our daily life, which are of both natural and synthetic origin. Sweeteners are added to foods for flavoring. Sweeteners are used to keep the calories of the food low, or in case of ailment like tooth decay, diabetes mellitus, or diarrhea.

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Chapter 17 Solutions
Chemistry for Changing Times
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- Draw the mechanism for the following Friedel-Craft reaction. AlBr3 Brarrow_forward(a) Draw the structures of A and B in the following reaction. (i) NaNH2, NH3(1) A + B (ii) H3O+arrow_forwardFor the reaction 2 N2O5(g) → 4 NO2(g) + O2(g), the following mechanism has been proposed: N2O5 →> NO₂+ NO3_(K1) NO2 + NO3 → N2O5 (k-1) NO2 + NO3 → → NO2 + O2 + NO (K2) NO + N2O5- NO2 + NO2 + NO2 (K3) d[N₂O5] __2k‚k₂[N2O5] Indicate whether the following rate expression is acceptable: dt k₁₁+ k₂arrow_forward
- Consider the following decomposition reaction of N2O5(g): For the reaction 2 N2O5(g) → 4 NO2(g) + O2(g), the following mechanism has been proposed: N2O5 → NO2 + NO3 (K1) NO2 + NO3 → N2O5 (k-1) NO2 + NO3 → NO2 + O2 + NO (K2) NO + N2O5 → NO2 + NO2 + NO2 (K3) Indicate whether the following rate expression is acceptable: d[N2O5] = -k₁[N₂O₂] + K¸₁[NO₂][NO3] - K¸[NO₂]³ dtarrow_forwardIn a reaction of A + B to give C, another compound other than A, B or C may appear in the kinetic equation.arrow_forwardFor the reaction 2 N2O5(g) → 4 NO2(g) + O2(g), the following mechanism has been proposed: N2O5 →> NO₂+ NO3_(K1) NO2 + NO3 → N2O5 (k-1) NO2 + NO3 → → NO2 + O2 + NO (K2) NO + N2O5- NO2 + NO2 + NO2 (K3) d[N₂O5] __2k‚k₂[N2O5] Indicate whether the following rate expression is acceptable: dt k₁₁+ k₂arrow_forward
- Given the reaction R + Q → P, indicate the rate law with respect to R, with respect to P and with respect to P.arrow_forwardSteps and explanations. Also provide, if possible, ways to adress this kind of problems in general.arrow_forwardk₁ Given the reaction A B, indicate k-1 d[A] (A). the rate law with respect to A: (B). the rate law with respect to B: d[B] dt dtarrow_forward
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