(a) A homogeneous mixture which contains water as a solvent is called(b) Ni(CIO4)2-6H2O is hydrated whereas Ni(CIO.)e is(c) NaCl contains anbond whereas O2(g) contains abond(d) A homogeneous mixture has aandcomposition(e) Temperature is anbecause it does not depend on the amount ofsubstance(f) The maximum number of electrons that an orbital can have is(9) The energy of the lowest level in the H atom is(h) Arrange the following subshells in the H atom in order of increasing energy:3s4d2р 4f3d2s3p() Wavelength and frequency ofradiation have anrelationship

Mixture is the physical combination of two or more substances, where the identities are retained and…

Answered: (a) A homogeneous mixture which…

Biochemistry

9th Edition

ISBN:9781319114671

Author:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.

Publisher:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.

Chapter1: Biochemistry: An Evolving Science

Section: Chapter Questions

Problem 1P

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Where would the following substances partition in water containing palmitic acid micelles? (a) H3C—(CH2)11—COO−, (b) H3C—(CH2)11—CH3
The synthesis of products is limited by the amount of reactants.(a) If one mole each of CH4, NH3, H2S, and CO2 is added to 1 literof water (= 55.5 moles of H2O) in a flask, how many moles ofhydrogen, carbon, oxygen, nitrogen, and sulfur are in the flask?(b) Looking at the molecular formula in the table, how manymoles of each element would be needed to make 1.0 mole ofglycine? (c) What is the maximum number of moles of glycine thatcould be made in that flask, with the specified ingredients, if noother molecules were made? Explain. (d) If serine or methioninewere made individually, which element(s) would be used up firstfor each? How much of each product could be made?
(c) The figure below shows the measured osmotic pressure, II / c, against the mass concentration c of the polymer for polymer solutions A, B, C, and D. The temperature and solvent are constant. D П B A (i) Rank the polymers according to their molar mass. (ii) In which polymer solution is the quality of the solvent the poorest? What type of solvent is present in sample C? Explain your answer. (iii) Which polymers could have the same chemical composition Explain your answer.
Which of the following are properties of water that make itimportant for living cells?(a) It is a polar molecule that can form solutions.(b) It has high surface tension.(c) It has a high specific heat.(d) It can participate in dehydration and hydrolysisreactions.(e) All of the above.
(b) Explain each of the following in terms of the properties of water. You are not limited to the three properties discussed in part (a): • the role of water as a medium for the metabolic processes of cells • the ability of water to moderate temperature within living organisms and in organisms' environment • the movement of water from the roots to the leaves of plants B IU 0/1
:The most important peculiarity of water when compared to other solvents is that water has إختر أحد الخيارات High boiling point, high melting point and high heat of vaporization A O High boiling point, low melting point and low heat of vaporization B O Low boiling point, high melting point and low heat of vaporization .C O Low boiling point, low melting point and low heat of vaporization D O
Match the following terms:___Solute (a) A mixture of two or more substances___Mixture in which the molecules of the sub-___Solution stances are evenly distributed___Solvent (b) The medium in which substances are dissolved (c) The substance dissolved in the solvent (d) Two or more substances that combine in any proportion and are not chemi- cally bound
A slice of pizza has 500 kcal. If we could burn the pizza and useall the heat to warm a 50-L container of cold water, what wouldbe the approximate increase in the temperature of the water?(Note: A liter of cold water weighs about 1 kg.)(A) 50°C (B) 5°C(C) 100°C (D) 10°C
Which of the following are solutions?(a) Italian salad dressing(b) Rubbing alcohol(c) Algae in pond water(d) Mouthwash
24. Ethanol, C2H5OH, and propane, C3H8, have approximately the same molar mass, yet ethanol has a much higher boiling point. Briefly explain why. 25. Ethanol, C2H$OH, and dimethyl ether, CH3OCH3, have the same molar mass, yet ethanol has a much higher boiling point. Briefly explain why.
Which of the following compounds would you expect to have the highest boiling pointand which the lowest boiling point? Explain your answer.(a) CH3OCH3 (b) CH3COOH (c) CH3CH2CH3
Water’s importance to living systems reflects (a) its polarity and solvent properties, (b) its high heat capacity, (c) its high heat of vaporization, (d) its chemical reactivity, (e) all of these.

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