A Material detail x• / ViewPureA OnCourse Con xE Thomas Willia xA ClassesA OnCourse CorAssessment:A Assessment:+ > C Ob oncourseconnect.com/assessment/1751732/81d1dec6-b587-314a-6064-0cb3351e4667O TPSS Bookmarks E Thomas Williams -EOY - ALL CLASSES - MONDAY - FRIDAY - APRIL 12-APRIL 16CHEMISTRY I 12-3 (THOMAS WILLIAMS, ID: 12390719)INSTANTHEAT PACKone hme use to reeve1UCE pon and sorenesSQUEEZEHEREThe "Instant Heat Pack" above uses a chemical reaction to produce thermal energy. Once the pack is squeezed, the thin barrier ruptures which allows the two substances to mixWhich of the following diagrams could show what materials make up the instide of the pack befoe the thin barrier is broken?AH,OCacSave/Exit

The "Instant Heat Pack" above uses a chemical reaction to produce thermal energy. Once the pack is squeezed, the thin barrier ruptures which allows the two substances to mix Which of the following diagrams could show what materials make up the instide of the pack befoe tha thin barrier is broken? HO Cad

The "Instant Heat Pack" above uses a chemical reaction to produce thermal energy. Once the pack is squeezed, the thin barrier ruptures which allows the two substances to mix Which of the following diagrams could show what materials make up the instide of the pack befoe tha thin barrier is broken? HO Cad

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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Basis: https://youtu.be/Y4NMpO1xI8U
What is the Molecular weight of a certain volatile liquid which is placed in 225 g flask which has total capacity volume of 252.17 mL. After the liquid was heated to 96.7 oC the gass volatilized and the weight of the flask measure 227.33g. What is the could be the MW of the volatile sample?
Electrolytic manganese dioxide can be prepared from manganese carbonate ore by crushing,milling and leaching the ore in sulphuric acid. Manganese sulphate is crystallised from thesolution, redissolved and electrolysed to give the manganese dioxide.If the crystallisation were performed in a 30m3 tank and the concentration of the solutionentering the tank were 160 grams per litre and left the tank at 40 grams per litre, how muchMnSO4.5H2O would be produced.
If the E0cell of Ag I Ag+ II Pb2+I Pb is 2.5 V it can power devices requiring 2.5 V or more. TRUE OR FALSE
150 kmol of an aqueous phosphoric acid solution contains S mol percent H3P04. The solution is concentrated by adding pure phosphoric acid at a rate of 20L per minute. Write a differential mole balance on phosphoric acid and provide an initial condition. Solve the balance to abtain an expression vdor np(t) . Use the result to derive an expression far xp(t), the mole fraction of phosphoric acid in the solution. How long will it take to concentrate the solution to IS percent H3P04 ?
2. A batch of parts is plated with copper in an electrolytic bath running at 0.15V forexactly 2 hours. What is the energy cost if the electric utility charges company$ 0.05 per kWh? (provide the given and required to find in the problem) (Kindly provide a CLEAR and COMPLETE solution) (Answer should be typewritten)
10.11/ A 1.5-kg specimen of a 90 wt% Pb-10 wt% Sn alloy is heated to 250°C (480°F), at which temperature it is entirely an a-phase solid solution . The alloy is to be melted to the extent that 50% of the speci- men is liquid, the remainder being the a phase. This may be accomplished either by heating the alloy or changing its composi- tion while holding the temperature con- stant. (a) To what temperature must the speci- men be heated? (b) How much tin must be added to the 1.5-kg specimen at 250°C to achieve this state? 10.15) A magnesium-lead alloy of mass 5.5 ka consists of a solid a phase that has a compo- sition that is just slightly below the solubility limit at 200°C (390°F). (a) What mass of lead is in the alloy? (b) If the alloy is heated to 350°C (660°F). how much more lead may be dissolved in the a phase without exceeding the solubility limit of this phase? 10.27 A hypothetical A-B alloy of composition 55 wt% B-45 wt% A at some temperature is found to consist of mass…
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Cereal is being dried in a vertical drier by air flowing countercurrent to the cereal. To prevent breakage of the cereal flakes, some of the exit air from the drier is recycled back to mix with the the moist fresh air. For each 1000 kg/hr of wet cereal fed to the drier, calculate the input of moist fresh air in kg/hr and recycle rate in kg/hr. The available data on stream compositions is (fractions): For water: Fresh air: 0.0132 Wet cereal: 0.200 Exit air: 0.263 Dried Cereal: 0.050 Air entering Dryer: 0.066