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- Calculate the volume (in mL) of 0.531 M HBr needed to react completely with 6.99 g of MgCO3 in a gas-forming reaction? mL Check & Submit Answer Show Approach étv hulu P. F10 000 F4 F7 F8 F3 F5 F6 & %24 4. 7 8 9Check my wO A chemical company wishes to determine whether a new catalyst XA-100 changes the mean hourly yield of its chemical process and is different from the historical process mean of 750 pounds per hour. After 29 trials are conducted using the new catalyst, the following outputs were given: t= 4.598 at a = 0.01. The null and alternative hypothesis would be:Exercise 2. Relationship between P and T when n and V are constant. Complete the data table (temperature and pressure) below for 0.20 g of helium (0.050 mol) at a constant volume of 1.12 L. Plot the pressure in atmospheres on the ordinate (range 0 atm to 1.50 atm), and Celsius temperature (range -100°C to +100°C) on the abscissa. Extrapolate the line connecting the points to zero pressure, and note where it intersects the temperature axis. Temperature Pressure P/T lb/in2) (atm). (atm/K) 100.0 19.9 30.0 16.2 14.6 -79.0 10.4 Now, calculate the P/T ratio (this is the proportionality constant, k), for each temperature and pressure value and fill in the column in the table. Complete the statements below: Statements: 1. The name of the curve you graphed is 2. The mathematical expression relating P and T is, 3. The temperature at which the line intersects the temperature axis is, 4. The pressure exerted by 0.20 g of He at 200°C would be (Show your calculation in the space below.) 981
- Exercise: The volume of 1 mole of Helium (He) gas at different te given in the following table. a. 0.98704 b. 0.98980 C. 0.98990 d. 0.99000 Temperature (K) Volume of He() (L) 14.3 17.2 Plot the Volume of Heig) vs. temperature What is the value of the correlation coefficient R²? e. 0.98700 203 243 283 323 363 23.1 25.9 31.5 Time left 0:37:42DATA DESCRIPTION TRIAL 1 TRIAL 2 Mass of Empty Evaporating Dish 35.6450g 35.6452g Mass of Evaporating Dish + Kernels Before Heating 42.3512 g 44.9572 g Mass of Evaporating Dish + Kernels After Heating 41.2540 g 42.6571 g What is the average percentage of water in the kernels? 65.180% 28.719% 21.208% 3.8913%Check my work A chemical company wishes to determine whether a new catalyst XA-100 changes the mean hourly yield of its chemical process and is different from the historical process mean of 750 pounds per hour. After 29 trials are conducted using the new catalyst, the (Give answer to 7 decimal following outputs were given: t = 4.598 at a = 0.01. The p-value found using Excel would be places)
- Experiment Temprature/K/ diff temp Bate Constant/s! -3 ܥ 55 -Wu 3ܩ3 - ܢܠ ܠܰܩܠܫܬ7 ܕܥ 333 ܒܟ ܐ ܘܤܠܒܘ ܐ ܬ ܠ ܫܟܠܬ ܦܪ ܓܧܧ ܝܩܬܘܣ ܘܣܠܸܛk ܡܩܢܠܢܢܗܧܫܥܠ ܨܛ ܠܠܝܘܠ ܐ eܚ ܥܠ ܬܦܠܝܩܠܠ ܬ ܘܩܜܔܙܝܬܗ ܛܛܠܐ ܛ8 -3 ܜܔܦܬܤܩܧ ܠܚܗ can be used to energy Ea. the TheQuestion 20 of 26 How many grams of C6H6 must decompose according to the following chemical equation to transfer 430 kJ of heat? C6H6(l) – 3 C2H2(g) AH = 630 kJ STARTING AMOUNT ADD FACTOR ANSWER RESET *( ) 0.001 160 6.022 x 1023 53.3 26.04 78.12 430 1 1000 17.8 2.15 x 107 630 kJ g C2H2 g C6H6 mol C6H. mol C2H2 JSTARTING AMOUNT + 78°F Mostly cloudy W X 1** * # 3 E X 140 $ 4 R 96 5 What volume in liters of H₂ gas would be produced by the complete reaction of 2.93 g of Al solid at STP according to the following reaction? Remember 1 mol of an ideal gas has a volume of 22.4 L at STP T 6.022 x 1023 mol H₂ F SDEC ADD FACTOR x( ) -- 2 Al (s) + 6 6 140 6 2 g/mol Al Q Search G H 2.02 & 4 7 B N 3 mol Al U ** 3.65 CH 8 HCI (aq) → HCI (aq)→→ 2 AICI (aq)+ 3 H₂ (g) Question 3 of 33 6 M & Al 7.30 1 hp ¹144 ( 9 K 0.329 LAI Fig ANSWER O 2.93 V11 > 26.98 L LH₂ O alt P 1.62 22.4 g H₂ RESET 2 [ 1 g/mol H₂ 1 brt sc 1 backspace
- Exercise 2 In this exercise, we instead consider a form of chemosynthesis. Chemosynthesis is for instance used by microorganisms, whose habitat has very little sunlight such as the deep sea. Here, we focus on chemosynthesis with sulphur, and the corresponding chemical reaction is ₁H₂S + ₂ CO₂ + x3024H₂O +25S + Cm(H₂O)n. Once again, x, denote the coefficients that balance the equation. If we use the same pro- cedure as in exercise 1 on the reaction in (3), the reduced echelon form of the augmented matrix is [1 0 0 0 -1 0 m 0 1 0 0 0 0 0 10 0001 -1 -m 2 -n (i) Write out the parametrized solution to the system of equations in (4). (ii) Can we as in 1(iv) - find a unique solution whenever m and n are known? (iii) Do all solutions (in the mathematical sense) of the system (4) correspond to useable solutions in terms of the chemical equation (3)?Part A Nitric oxide reacts with chlorine gas according to the following reaction: 2 NO (g) + Cl2 (g) = 2 NOCI (g) Kp = 0.27 at 700 K A reaction mixture initially contains equal partial pressures of NO and Cl2. At equilibrium, the partial pressure of NOC1 was measured to be 110 torr. What were the initial partial pressures of NO and Cl2? Previous Answers Enter your answers numerically separated by a comma. να ΑΣΦ PNO, Pol, = 225.18,225.18 torr Submit Previous Answers Request Answer X Incorrect; Try Again; 2 attempts remainingWine goes bad soon after opening because the ethanol (CH, CH,OH) in it reacts with oxygen gas (0,) from the air to form water (H,0) and acetic acid (CH,COOH), the main ingredient of vinegar. What mass of oxygen gas is consumed by the reaction of 1.86 g of ethanol? Round your answer to 3 significant digits. do x10 Ar Check Explanation Accessibl O 2022 McGraw Hill LLC. All Rights Reserved. Terms of Use Privacy Center 9:40 A 4/1/203 80 F Cloudy DELL Delete PgUp PgDn PrtScr Insert F11 F12 F9 F10 F6 F7 F8 F4 F5 F1 F2 F3 Backspace 大 & 24 7 8.