
Interpretation:
The independent and dependent variable needs to be determined and the factor that held constant in the experiment needs to be determined.
Concept introduction:
Laboratory or lab is a place that is especially equipped for experimental study in science or for testing and analysis. Various experiments are performed in the lab but with safety measures such as goggles, gloves, apron, etc.

Answer to Problem 42A
The amount of sugar is a dependent variable and temperature is an independent variable and the amount of water is constant.
Explanation of Solution
A variable is a quantity or condition that may have one or more value. There are two types of variables, independent and dependent variable. An independent variable can be changed by the performer whereas dependent variable changes in response to a change in independent variable.
Temperature is the independent variable as it is not changing with the amount of sugar that is being dissolved. Amount of sugar is a dependent variable as it is changing with the change in temperature. The more is the temperature, the more sugar can be dissolved easily. And amount of water is constant.
The independent variable is temperature, the dependent variable is sugar and water is held constant.
Chapter 1 Solutions
Glencoe Chemistry: Matter and Change, Student Edition
Additional Science Textbook Solutions
Campbell Biology: Concepts & Connections (9th Edition)
Anatomy & Physiology (6th Edition)
Microbiology: An Introduction
Applications and Investigations in Earth Science (9th Edition)
Campbell Essential Biology (7th Edition)
Chemistry: An Introduction to General, Organic, and Biological Chemistry (13th Edition)
- If compound A reacts with an excess of methyl iodide and then heated with aqueous Ag₂O, indicate only the major products obtained. Draw their formulas. A Harrow_forwardExplanation Check 1:01AM Done 110 Functional Groups Identifying and drawing hemiacetals and acetals In the drawing area below, create a hemiacetal with 1 ethoxy group, 1 propoxy group, and a total of 9 carbon atoms. Click and drag to start drawing a structure. ✓ $ 2025 McGraw Hill LLC. All Rights Reserved. Terms of Use Sarrow_forwardWrite the systematic name of each organic molecule: CI structure CI CI Explanation CI ठ CI Check B ☐ 188 F1 80 name F2 F3 F4 F5 F6 60 F7 2arrow_forward
- Write the systematic name of each organic molecule: structure i HO OH Explanation Check name ☐ ☐arrow_forwardX 5 Check the box under each molecule that has a total of five ẞ hydrogens. If none of the molecules fit this description, check the box underneath the table. CI Br Br Br 0 None of these molecules have a total of five ẞ hydrogens. Explanation Check esc F1 F2 tab caps lock fn Q @2 A W # 3 OH O OH HO © 2025 McGraw Hill LLC. All Rights Reserved. Terms of Use | Privacy Center | Accessibility IK F7 F7 F8 TA F9 F10 & 6 28 * ( > 7 8 9 0 80 F3 O F4 KKO F5 F6 S 64 $ D % 25 R T Y U பட F G H O J K L Z X C V B N M H control option command P H F11 F12 + || { [ command optionarrow_forwardAn open vessel containing water stands in a laboratory measuring 5.0 m x 5.0 m x 3.0 m at 25 °C ; the vapor pressure (vp) of water at this temperature is 3.2 kPa. When the system has come to equilibrium, what mass of water will be found in the air if there is no ventilation? Repeat the calculation for open vessels containing benzene (vp = 13.1 kPa) and mercury (vp = 0.23 Pa)arrow_forward
- Every chemist knows to ‘add acid to water with constant stirring’ when diluting a concentrated acid in order to keep the solution from spewing boiling acid all over the place. Explain how this one fact is enough to prove that strong acids and water do not form ideal solutions.arrow_forwardThe predominant components of our atmosphere are N₂, O₂, and Ar in the following mole fractions: χN2 = 0.780, χO2 = 0.21, χAr = 0.01. Assuming that these molecules act as ideal gases, calculate ΔGmix, ΔSmix, and ΔHmix when the total pressure is 1 bar and the temperature is 300 K.arrow_forwarddG = Vdp - SdT + μA dnA + μB dnB + ... so that under constant pressure and temperature conditions, the chemical potential of a component is the rate of change of the Gibbs energy of the system with respect to changing composition, μJ = (∂G / ∂nJ)p,T,n' Using first principles prove that under conditions of constant volume and temperature, the chemical potential is a measure of the partial molar Helmholtz energy (μJ = (∂A / ∂nJ)V,T,n')arrow_forward
- The vapor pressure of dichloromethane at 20.0 °C is 58.0 kPa and its enthalpy of vaporization is 32.7 kJ/mol. Estimate the temperature at which its vapor pressure is 66.0 kPa.arrow_forwardDraw the structure of A, the minor E1 product of the reaction. Cl Skip Part Check F1 esc CH_CH OH, D 3 2 Click and drag to start drawing a structure. 80 R3 F4 F2 F3 @ 2 # $ 4 3 Q W 95 % KO 5 F6 A F7 × G ☐ Save For Later Sub 2025 McGraw Hill LLC. All Rights Reserved. Terms of Use | Privacy C ►II A A F8 F9 F10 FL 6 7 88 & * 8 9 LLI E R T Y U A S D lock LL F G H 0 P J K L Z X C V B N M 9 Harrow_forwardFrom the choices given, which two substances have the same crystal structure? (Select both) Group of answer choices ZnS (zincblende) Diamond TiO2 (rutile) ZnS (wurtzite)arrow_forward
- ChemistryChemistryISBN:9781305957404Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCostePublisher:Cengage LearningChemistryChemistryISBN:9781259911156Author:Raymond Chang Dr., Jason Overby ProfessorPublisher:McGraw-Hill EducationPrinciples of Instrumental AnalysisChemistryISBN:9781305577213Author:Douglas A. Skoog, F. James Holler, Stanley R. CrouchPublisher:Cengage Learning
- Organic ChemistryChemistryISBN:9780078021558Author:Janice Gorzynski Smith Dr.Publisher:McGraw-Hill EducationChemistry: Principles and ReactionsChemistryISBN:9781305079373Author:William L. Masterton, Cecile N. HurleyPublisher:Cengage LearningElementary Principles of Chemical Processes, Bind...ChemistryISBN:9781118431221Author:Richard M. Felder, Ronald W. Rousseau, Lisa G. BullardPublisher:WILEY





