Dextran is an undesirable compound in sugar cane. They are produced by lactic acid bacteria from solutions that contain saccharide,but also by the dental plaque-forming species, Streptococcus mutans. Under certain conditions, cane sugar is converted into dextranat a rate proportional to the amount unconverted at any time, "t". For an initial amount of 75 kg, 8 kg were converted in the first 30mins, find the amount converted in 2 hours.

According to given statement as rate is directly proportional to amount converted, so reaction…

Answered: Dextran is an undesirable compound in…

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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The Haber process is used to industrially produce ammonia (NH3). Ammonia is the active ingredient in a variety of household cleaners. The data table below summarizes the experimental quantities of reactants and products collected from a specific batch. N2 (g) + 3 H2 (g) --> 2 NH3 (g) Substance Amount Used N2 10,000 g H2 15,000 g Amount Produced 11,150 g Substance NH3 If the company chemist calculated that 12,163 g of NH3 should be produced, what is the percent yield?
b) C₂H4 (g) + 3 O2 (g) → 2 CO2 (g) + 2 H₂O(g) Element Initial OS C H O Oxidizing Agent Reducing Agent Zn C₂H4 H S C₂H4 c) Zn (s) + H₂SO4 (aq) → ZnSO4 (aq) + H₂ (g) Element Initial OS Oxidizing Agent Zn 0₂ Reducing Agent Zn H₂SO4 || H₂SO4 [0] Final OS Final OS OND
Ammonia (NH3) is naturally produced through the decomposition of organic material as wellas being high in wastewater discharged to natural waters. In the environment it is oxidizedto form nitrite (NO2-), and nitrite is then oxidized to form nitrate (NO3-) in a process callednitrification. The balanced equations are given below:2NH3 + 3O2 → 2NO2- + 2H+ + 2H202NO2- + O2 → 2NO3-a) Assuming complete oxidation, what is the theoretical oxygen demand to convert100mg/L of ammonia to nitrate (i.e., how much oxygen is necessary)? Report youranswer as mg/L of O2.Answer: 376 mg/L O2b) This conversion process makes water more acidic. With reference to the equations forpH, explain why this occurs
(a) Iz(s) + 5 Cu²* (aq) + 6 H;O(I) –→ 2 103"(aq) + 5 Cu(s) + 12 H*(aq) (b) Hg²*(aq) + 21 (aq) → Hg(1) + Iz(s) (c) H2SO3(aq) + 2 Mn(s) + 4 H¯ (aq) · S(s) + 2 Mn²*(aq) + 3 H2O(I)
A burette is a device that allows the precise delivery of a specific volume of a solution to be recorded to the nearest milliliter tenths of a milliliter thousandths of a milliter hundredths of a milliliter
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Which of the following chemical reactions is (are) classified as a decomposition reaction? A. 2NACIO3(s) 2NACI(s) + 302(g) > B. KCI(aq) + AgNO3(aq) →KNO3(aq) +AgCl(s) C. Fe(s) + CuS04(aq) FeSO4(aq) + Cu(s) D. 2NaHCO3(s) NazCO3(s) + CO2(g) + H2O(g) E. 2Fe(s) + 3C12(g) →2 FeCl3(s) A none of these B.
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9. HCl (a strong acid) can dissolve Mg metal; if the rate of production of H₂ is 1.0x108 g H₂/s, find the mass of Mg consumed during 5.0 minutes (Hint: Watch your units on this one!) -5. 3.6×10'S
Cryolite (Na3AlF6) is used in the commercial production of aluminum from ore. Cryolite itself is produced by the following reaction: 6 NaOH + Al₂O3 + 12 HF → 2 Na3AlF6 + 9 H₂O A mixture containing 430.0 kg of NaOH, 232.7 kg of Al2O3, and 600.0 kg of HF is heated to 950 °C until it reacts to completion. What is the maximum mass of Na3AlF6 formed? kg Na3AlF6
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