A student used two balances to measure the mass of a standard weight with a mass of exactly 100.00 g and recorded the following measurements: Scale A 100.05 g Scale B 101.23 g Select the correct statement from the following: The Scale A measurement is more precise. The Scale A measurement is more accurate. The Scale A measurement is less precise but more accurate. The Scale A measurement is more precise but less accurate.

A student used two balances to measure the mass of a standard weight with a mass of exactly 100.00 g and recorded the following measurements: Scale A 100.05 g Scale B 101.23 g Select the correct statement from the following: The Scale A measurement is more precise. The Scale A measurement is more accurate. The Scale A measurement is less precise but more accurate. The Scale A measurement is more precise but less accurate.

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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Use the following data for Problems 2-22 through 2-26. A compound has A molecular weight of 50 lb /lb-mol. A normal melting point of 50°F. A normal boiling point of 150°F. A constant heat capacity in the solid phase of Ĉ= 0.7 BTU/lb.°R. P m A constant heat capacity in the liquid phase of Ĉ= 0.85 BTU/lb °R. m A constant density in the solid phase of p = 40 lb /ft³. m A constant density in the liquid phase of p = 30 lb /ft³. An ideal gas heat capacity of C=17/1200 + T²x 10-6BTU/lb ºR with T representing the tem- perature in°R. m
AutoSave w | homework – Saved to my Mac OFF ... Home Insert Draw Design Layout References Mailings Review View O Tell me R Share O Comments Calibri (Bo. v 11 v A A E vE v E v E E Aa v AaBbCcDdEe AaBbCcD AaBbCcDdE AaBb AaBbCcDdEe Paste BIU V ab x, x A v I v A v No Spacing Normal Heading 1 Heading 2 Title Styles Pane Dictate Sensitivity Please answer the following questions fully and to the best of your ability 1) Please state how you would synthesize the following polymer below and show the mechanism behind the reaction. Note that this also means you need to tell me which molecule you are starting with as well as specifying all conditions required. он OH 2) Will either the polymer or the monomers you used to make it show peaks if IR spectroscopy analysis was done on them, and if so where? How about if UV-vis spectroscopy was performed instead? Page 1 of 1 93 words E English (United States) O Focus 白

Calculate the average partial molar volume (in cm³/mol) of MgSO4 in the interval [0.1, 0.2] mol of MgSO4 in water solution. T, P, n(water) is constant 1002.0 V/cm³ 1001.8. 0 0.2 0.1
Classwe Roland M does google com/document/d/IvJOAin W50tHetaGTXANTljDEKSNUYOGI6C7P3Mo/edit Surrealam The M. New folder Genetic drift Wikip &Algebra Foundation. Image result erris-Specific Heat Practice O "iew Insert Format Tools Add ons Help Accessibility Last edit 16 BIUA 00 100% Normal text New Rocker 2 677 grams of ethanol (2.57 J/g"C) starts at a temperature of 2"C. If energy is added to raise its temperature to 71'C, how many Joules were added? 1,20,052.41 Joulen were added Note: 1 kilogram 1000 grams 1 Calorie 1 kcal 1000 calories oF to °C: [ (T-32 ) × 5 ]-9 3. A nail made of iron (c 0.45 J/g C) has 34,500 Joules added to it. If the nail's temperature goes from 11 C to 892 C, what is the mass of the nail? 4. A box of Penguin Flakes CerealTM has 540 Calories. If all of these calories are used to heat up a bathtub of water (c = 1.00 cal/g C) by 10.0°C, how many kilograms of water are in the bathtub? 0.054 hilograms of watt in the bathtub
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es Mailings Review View O Tell me 三三 AaBbCcDdEe AaBbCcDdEe AaBbCcDdEe AaB Normal Body Text No Spacing Table Paragr... Не 5, and improvements, choose Check for Updates. Answer the following questions. CO(g) +2 H2(g) CH3OH(1) AH° =-128.1 kJ S° AH (kJ mol-') -110.5 -238.6 AG (kJ mol-1) (J mol- K-) CO(g) CH3OH(1) -137.3 -166.2 +197.9 +126.8 The data in the table above were determined at 25°C. (a) Calculate AG° for the reaction above at 25°C. (b) Calculate Keg for the reaction above at 25°C. (c) Calculate AS for the reaction above at 25°C. (d) In the table above, there are no data for H2. What are the values of AHƐ, AGƐ, and of the absolute entropy, S°, for H2 at 25°C?
Help ce/acellus_engine.html?ClassID=1246112631# ew Student Orie. Using the data below, calculate the enthalpy for the oxidation of magnetite to hematite. 2FE3 O4(s) + O2(g) → 3FE2O3(s) Compound AH, (kJ/mol) f Fe,0,(s) -1118.4 0,(8) 0.0 Fe,0,(s) -824.2 AHn = [ ? ] kJ Enter either a + or - sign AND the magnitude. rxn Enthalpy (kJ) Enter
← = Account Balance 1 substance Elanation 7 O STATES OF MATTER Predicting the relative boiling points of pure substances A 52°F Mostly cloudy B A Q Z Rank the elements or compounds in the table below in decreasing order of their boiling points. That is, choose 1 next to the substance with the highest boiling point, choose 2 next to the substance with the next highest boiling point, and so on. 2 https://www-awu.aleks.com/alekscgi/x/Isl.exe/1o_u-IgNslkr7j8P3jH-IBMBkpcnaFu0F7Uj... X chemical symbol, chemical formula or Lewis structure S .. : Cl: W CaCl₂ 0=N-CI: .. : Cl: / C=C Check Schedule Builder CL₂ **** # 3 E D .. : Cl: : Cl: .. H 14 td-jolch. $ 4 R X boiling point (Choose one) ✓ (Choose one) v (Choose one) ✓ F (Choose one) ✓ 1 do % 5 V Give to Queensborough X T G 6 L B & 27 H N * Announcements-2022 F. X All 10 ✔ 8 J DE ( || M 9 K ho ) ALEKS - Chisom Obidieg X + ——— O Ⓒ2022 McGraw Hill LLC. All Rights Reserved. Terms of Use | Privacy Center | Accessibil Ⓒ 40 D 12:42 PM 11/3/2022 O D…
This question has multiple parts. Work all the parts to get the most points. Calculate AH for the reaction 2K() + 2H,О(1)- 2КОН(ад) + На (9) Substance and State AH (kJ/mol) K(s) KOH(aq) H2(g) H20(1) -481 -286 ΔΗ -390 kJ %3D bA 5.50-g chunk of potassium is dropped into 1.00 kg water at 24.6°C. What is the final temperature of the water after the preceding reaction occurs? Assume that all the heat is used to raise the temperature of the water. (Never run this reaction. It is very dangerous; it bursts into flame!) Temperature = Submit
Esc ||| = OTHERMOCHEMISTRY A student runs two experiments with a constant-volume "bomb" calorimeter containing 1200. g of water (see sketch at right). Calculating heat of reaction from bomb calorimetry data First, a 5.000 g tablet of benzoic acid (C6H,CO₂H) is put into the "bomb" and burned completely in an excess of oxygen. (Benzoic acid is known to have a heat of combustion of 26.454 kJ/g.) The temperature of the water is observed to rise from 16.00 °C to 38.96 °C over a time of 9.2 minutes. 2 4. Next, 5.730 g of acetaldehyde (C₂H₂O) are put into the "bomb" and similarly completely burned in an excess of oxygen. This time the temperature of the water rises from 16.00 °C to 42.19 °C. 84°F Sunny Use this information, and any other information you need from the ALEKS Data resource, to answer the questions below about this reaction: FI Explanation Is this reaction exothermic, endothermic, or neither? 4- F₂ Check 2C₂H4O(g) + 50₂(g) 4CO₂(g) + 4H₂O(g) Be sure any of your answers that are…
Show the cycle on P-v and T-s diagrams.