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(a)
Interpretation: Food coloring needs to be classified as a homogeneous or heterogeneous mixture.
Concept Introduction: A mixture is said to be homogenous when its composition is uniform throughout whereas a mixture is said to be heterogenous when its composition is not uniform throughout.
(a)
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Answer to Problem 15LC
Homogeneous mixture.
Explanation of Solution
The composition in the entire mixture of food coloring is uniform throughout so it is said to be a homogenous mixture.
(b)
Interpretation: Ice cubes in liquid water need to be classified as a homogeneous or heterogeneous mixture.
Concept Introduction: A mixture is said to be homogenous when its composition is uniform throughout whereas a mixture is said to be heterogenous when its composition is not uniform throughout.
(b)
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Answer to Problem 15LC
Heterogeneous mixture.
Explanation of Solution
The composition in the entire mixture of ice cubes in liquid water is not uniform throughout so it is said to be a heterogeneous mixture.
(c)
Interpretation: Mouthwash needs to be classified as a homogeneous or heterogeneous mixture.
Concept Introduction: A mixture is said to be homogenous when its composition is uniform throughout whereas a mixture is said to be heterogenous when its composition is not uniform throughout.
(c)
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Answer to Problem 15LC
Homogeneous mixture.
Explanation of Solution
The composition in the entire mixture of mouthwash is uniform throughout so it is said to be a homogenous mixture.
(d)
Interpretation: Mashed, unpeeled potatoes need to be classified as a homogeneous or heterogeneous mixture.
Concept Introduction: A mixture is said to be homogenous when its composition is uniform throughout whereas a mixture is said to be heterogenous when its composition is not uniform throughout.
(d)
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Answer to Problem 15LC
Heterogeneous mixture.
Explanation of Solution
The composition in the entire mixture of the mashed, unpeeled potatoes is not uniform throughout so it is said to be a heterogeneous mixture.
Chapter 2 Solutions
Chemistry 2012 Student Edition (hard Cover) Grade 11
- The chemical reaction you investigated is a two-step reaction. What type of reaction occurs in each step? How did you determine your answer?arrow_forwardWhat is the relationship between the limiting reactant and theoretical yield of CO2?arrow_forwardFrom your calculations, which reaction experiment had closest to stoichiometric quantities? How many moles of NaHCO3 and HC2H3O2 were present in this reaction?arrow_forward
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- 2. Make an ice cube at 1 bar pressure by freezing an amount of liquid water that is 2 cm x 2 cm x 2 cm in volume. The density of liquid water at 0 °C is 1.000 g cm³ and the density of ice at 0 °C is 0.915 g cm³. Note that this difference in density is the reason your water pipes burst if they freeze and why you shouldn't forget to take your bottle of pop out of the freezer if you put it in there to try and cool it down faster. A. What is the work of expansion upon freezing? B. Is work done on the system or by the system?arrow_forwardI have a excitation/emission spectra of a quinine standard solution here, and I'm having trouble interpreting it. the red line is emission the blue line is excitation. i'm having trouble interpreting properly. just want to know if there is any evidence of raman or rayleigh peaks in the spectra.arrow_forwardGive the major product of the following reaction. excess 1. OH, H₂O 1.OH H CH3CH2CH21 H 2. A.-H₂O Draw the molecule on the canvas by choosing buttons from the Tools (for bonds), Atoms, and Advanced Template toolbars. The single bond is active by default.arrow_forward
- 2. Use Hess's law to calculate the AH (in kJ) for: rxn CIF(g) + F2(g) → CIF 3 (1) using the following information: 2CIF(g) + O2(g) → Cl₂O(g) + OF 2(g) AH = 167.5 kJ ΔΗ 2F2 (g) + O2(g) → 2 OF 2(g) 2C1F3 (1) + 202(g) → Cl₂O(g) + 3 OF 2(g) о = = -43.5 kJ AH = 394.1kJarrow_forwardci Draw the major product(s) of the following reactions: (3 pts) CH3 HNO3/H2SO4 HNO3/ H2SO4 OCH3 (1 pts)arrow_forwardProvide the product for the reactionarrow_forward
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