1) A sample of gas (24.2 g) initially at 4.00 atm was compressed from 8.00 L to 2.00 L at constant temperature. After the compression‚ the gas pressure was __________ atm. A) 4.00 B) 2.00 C) 1.00 D) 8.00 E) 16.0 2) A sample of a gas (5.0 mol) at 1.0 atm is expanded at constant temperature from 10 L to 15 L. The final pressure is __________ atm. A) 1.5 B) 7.5 C) 0.67 D) 3.3 E) 15 3) A balloon originally had a volume of 4.39 L at 44 °C and a pressure of 729 torr. The
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! ! Determination of Gas Constant R through Mg and HCl Reaction ! ! ! ! ! !1 of !9 IB Chemistry SL (Jr) Candidate: Yunha Kim Objective ! Candidates will react Magnesium with Hydrochloric acid and collect Hydrogen. The grams of the produced Hydrogen will be calculated and compared to the theoretical yield of Hydrogen. ! Controlled Variables ! Mass of Magnesium Ribbon This will be kept constant as the objective is to determine the Gas Constant (R). If this is
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have the same volume as the original model. Q1. Use a piece of A4 paper to make a box with a length of 10cm and a width of 3cm. Then find the volume of the box and the total surface area of the paper used to make the box. T.S.A: 5 rectangles and 4 squares 5 x L x W + 4W = 5 x 10 x 3 + 4 x 9 = 186cm Volume: 5 rectangles and 4 squares L x W x H = 10 x 3 x 3 = 90cm Q2. Make another box with the same general shape‚ but chose a different length and width. Then find the volume of the box and
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Volume‚ also referred to as dynamics‚ is one of the most important components of sound. Composers use volume as a way of controlling the emotional content and shape of a piece. It is interesting to note‚ however‚ that early composers did not generally mark their scores with instructions about volume until well into the 17th century‚ but depended upon the musicians to determine the appropriate levels of volume for a specific performance space. Composers started writing indications for dynamic levels
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Aluminum 2.70 Gold 19.3 1. An object has a mass of 57.7 g and occupies a volume of 21.65 cm3‚ what is its density? 2. An object whose density is 1.98 x 103 kg/m3 has a mass of 35.4 g. How many cubic centimeters does the object occupy? 3. A cylinder has a radius of 12.0 cm. It has a density of 15.2 g/cm3 and a mass of 100 g. What is the height of the cylinder? (Hint: volume of a cylinder can be calculated by r2h) 4. A friend shows you a gift
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Previous exam questions on area between functions and volumes of solids. 1. Let f(x) = cos(x2) and g(x) = ex‚ for –1.5 ≤ x ≤ 0.5. Find the area of the region enclosed by the graphs of f and g. (Total 6 marks) 2. Let f(x) = Aekx + 3. Part of the graph of f is shown below. The y-intercept is at (0‚ 13). (a) Show that A =10. (2) (b) Given that f(15) = 3.49 (correct to 3 significant figures)‚ find the value of k. (3) (c) (i) Using your value of k‚ find f′(x). (ii) Hence
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Volume (CM3) Diameter (CM) Radius (CM) M&M’S® Thickness (CM) 1 75 108 54 0.743 2 83 120 60 0.658 Table 2 – Direct Measurement Trial M&M’S® Thickness (CM) 1 0.642 2 0.741 3 0.683 Table 3 – Calculated Averages Method Calculated Average Thickness (CM) Indirect (from Table 1) 0.701 Direct (from Table 2) 0.689 Questions: 1. When you performed Step 2 of the procedure‚ you actually made a cylinder of M&M’S®. The cylinder was rather "smushed‚" and the
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ORO CITY GAS ABSORPTION COLUMN - MASS TRANSFER EXPERIMENT B ChE 35 Chemical Engineering Laboratory II Acabo‚ Dean Cris Aguirre‚ Ian Carlo Belarmino‚ Arniel Catan‚ Charles John Engr. Marco Theodore E. Escaňo ChE 35 Instructor October 2012 OBJECTIVE: To calculate rate of absorption of carbon dioxide into water from analysis of liquid solutions flowing down the absorption column. THEORETICAL BACKGROUND: Absorption refers to the transfer of a gaseous component from the gas phase to a
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Inch(in) | Yard(yd) | Stirring rod: Length | 300.50cm | 3.005m | 12in | 0.33yd | Lab. Manual: Length | 271cm | 2.71m | 10.20in | 0.28yd | Lab. Manual: Width | 208cm | 2.08m | 8.60in | 0.24yd | B. Graduated Cylinder Volume reading when graduated cylinder is half filled with | (mL) | Potassium permanganate(KMnO4) | 12.6mL | Distilled Water (H2O) | 12.3mL | | Capacity of Apparatus (maximum volume contained) | Big test tube | 18.8mL | 250-mL Beaker | 50mL | C. Pipette
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Assignment No: 02 Traffic Volume Study Acknowledgement I would like to express my profound gratitude and sincere thanks to the supervisor Ashfia Siddique‚ Lecturer‚ Department of civil engineering‚ Ahsanullah University of science and technology for her guidance and valuable suggestions to analyze data in light of practical experience throughout the period of study. INDEX |Topics |Page No
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