Unit 18 B Study Guide 1. Find the solubility (in mol/L) of lead(II) chloride (PbCl2) at 25oC. Ksp = 1.62e–5. A) 1.59e–2 B) 2.53e–2 C) 6.64e–17 D) 2.01e–3 E) 2.01e–2 2. The two salts AgX and AgY have very similar solubilities in water. It is known that the salt AgX is much more soluble in acid than is AgY. What can be said about the relative strengths of the acids HX and HY? A) Nothing. B) HY is stronger than HX. C) HX is stronger than HY. D) The acids have equal strengths. E)
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agent.-Metallic oxides – e.g. Iron(III) oxide‚ copper oxide and titanium oxide. Metals are extracted from these insoluble bases-Carbonates- Sodium hydrogen carbonate (NaHCO3)-bicarb soda for cakes to rise‚ safely neturalise acids.Sodium carbonate (Na2CO3)- synthesised industrially for use in making
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English Proficiency This test is designed to assess the test takers’ general proficiency in the use of English language as a means of self-expression in real life situations and specifically to test the test takers’ knowledge of basic grammar‚ their vocabulary‚ their ability to read fast and comprehend‚ and also their ability to apply the elements of effective writing. 1. Grammar 1. Agreement‚ Time and Tense‚ Parallel construction‚ Relative pronouns 2. Determiners‚ Prepositions‚ Modals
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1. INTRODUCTION Bangladesh is one of the least developed countries with a low resource base‚ a burgeoning population with a very low land-man ratio‚ often threatened by both natural & anthropogenic stresses. The vast majority of the population lives almost exclusively on the natural resource base. This resource base is under serious threat and environmental planning is essential for the survival with dignity for Bangladesh’s over 115 million people & for sustainability of the echo system. Like
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APPENDIX W PULP AND PAPER Wi Wii APPENDIX W PULP AND PAPER MICHIEL P. H. BRONGERS1 AND AARON J. MIERZWA1 SUMMARY AND ANALYSIS OF RESULTS Corrosion Control and Prevention The $165 billion pulp‚ paper‚ and allied products industry supplies the United States with approximately 300 kg of paper per person per year. More than 300 pulp mills and more than 550 paper mills support its production. A typical pulp mill uses approximately 64 m3 of water per metric ton of pulp‚ and the combined
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UNIVERSITY DEPARTMENTS ANNA UNIVERSITY‚ CHENNAI – 600 025 R - 2012 CURRICULUM & SYLLABUS (Common to all branches of B.E. / B. Tech. Programmes) SEMESTER I CODE NO THEORY HS8151 MA8151 PH8151 CY8151 GE8151 GE8152 PRACTICAL PH8161 CY8161 GE8161 GE8162 Physics Laboratory Chemistry Laboratory Computer Practices Laboratory Engineering Practices Laboratory TOTAL 0 0 0 0 17 0 0 0 0 2 2 2 3 3 13 1 1 2 2 27 Technical English -I Mathematics -I Engineering Physics Engineering Chemistry Computing Techniques
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1. (a)Correct the following statements. (i) The melting points of crystalline and amorphous solids are not definite. The melting point of an amorphous solid is not definite. OR The melting point of a crystalline solid is definite. P Ps X solute . Ps P Ps The equation for relative lowering of vapour pressure when solute remains normal is X solute P (iii)The degree of ionization decreases with dilution. The degree of ionisation increases with dilution. (iv) Tertiary butyl halide
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The process of naming compounds allows chemists to communicate formulae in words rather than in chemical symbols. There are‚ however‚ a few rules about naming compounds which need to be known in order to write a formula in word form or translate a compound in word form into chemical symbols. Ionic compounds If the compound is ionic‚ then the name of the cation (usually metal) comes first‚ followed by the ’compound’ name of the anion. To find the compound name of an anion‚ replace the end of the
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www.kalvisolai.com 5 Mark Compulsory Problems with Solution 1 +2 CHEMISTRY Q. 70 Compulsory Problems with Solution Problems are solved in easiest way (As per Government Answer Key) www.kalvisolai.com 5 Mark Compulsory Problems with Solution 2 SALIENT FEATURES Dear Students ❆ Q.No: 70 is asked as compulsory problem in Govt Exam. ❆ Two problems to be answered out of four problems. ❆ To simplify the problem‚ hints and expected compounds related to molecular formula‚ general formula are
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Topic 10 Rate of Reaction Part A Unit-based exercise Unit 36 An introduction to rate of reaction Fill in the blanks 1 concentration; time 2 instantaneous 3 a) the gaseous product / carbon dioxide evolved b) loss in mass 4 a) colorimeter b) standard alkali c) the gaseous product / carbon dioxide evolved 1 time to reach the opaque stage 5 transmittance; 6 hydroxide; titrimetric True or false 7 T In the oxidation of methanoic acid by bromine‚ the intensity of the orange colour of bromine
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