1a. The masses of five paper clips: 5.123g; 5.117g; 5.124g; 5.120g; and 5.126g. Suppose you were...
1a. The masses of five paper clips: 5.123g; 5.117g; 5.124g; 5.120g; and 5.126g. Suppose you were asked, “What is the mass of a paper clip?” What is an appropriate statistical response? Include information on variation.
1b. In the activity you determined the volume of a drop of water by two different measurements methods. Three quantities were determined: mass of water; volume of water; and number of drops. Rank the three quantities in order of least to greatest error in their measurement and explain your ranking
Homework Answers
1a. ) The masses of 5 clips are 5.123g; 5.117g; 5.124g; 5.120g; 5.126g. If one ask about the mass of the clip. The mean of mass should be the appropriate statistical response.
1 b ) The greatest error will be in the measurement in number of drops. Then the error will be in measurement by volume. Least error will be in case of measurement by mass.
The no. of drops depends on various factors Surface tension , viscosity of liquid. Surface area of opening mouth of apparatus. So the value is different in different apparatus and in different temperature and pressure.
The volume also depends on temperature, as density varies with temperature.
However the mass remains constant.
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1a. The masses of five paper clips: 5.123g; 5.117g; 5.124g;
5.120g; and 5.126g. Suppose you were...
In the Use of the Analytical Balance activity, you determined the volume of a drop of...
In the Use of the Analytical Balance activity, you determined the volume of a drop of water by two different measurements methods. Three quantities were determined: mass of water; volume of water; and number of drops. Provide an explanation for the least accurate calculation among the three quantities.
1a. Identify which will be hotter (have a higher final temperature) if you heat equal masses...
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lab 1 measurements physics Figure #1 : Pendulum PROCEDURE: and record their actual masses in the...
lab 1 measurements physics
Figure #1 : Pendulum PROCEDURE: and record their actual masses in the data table below 1. Weigh the 500g and 200g masses Table # 1: Mass values Nominal Mass Value 200g Ratio of masses: Actual Mass Value 50D Nominally: 5/2-2.5 Actual Keep this ratio in mind as we do the experiment to see if it affects our values 2. Attach the 500g mass to the line and attach it to the holder such that the length...
i uploaded everything that was given. Where would I find the experiemental values? Complete the calcula...
i
uploaded everything that was given. Where would I find the
experiemental values?
Complete the calculation summary below. READ THE EXPERIMENTAL DISCUSSION FIRST! REPORT ALL ANSWERS TO THE CORRECT SIGNIFICANT FIGURES. SHOW CALCULATION SET-UP on the next page. PART B: Molarity Determination via Solution Stoichiometry 7.625 g Mass of Empty 50 mL Beaker 7.976 g Mass of Beaker and NaCl (final heating) Mass of NaCl Produced (Experimental Yield of NaCl) moles Moles of Na,CO, Consumed 0.00500 Liter Volume of Na,CO,...
Anita Math Acid-Base Titrations Compatibility Mede Saved to this PC T Tools Tell me what you...
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4. Suppose that a student performed the experiment and calculations perfectly as directed except that, unknown to the student, the balance was not zeroed but weighed 0.100 g too high throughout the experiment. Would the calculated val- ue for the density of the unknown liquid be correct? That is, would it be equal to, higher than, or lower than the true value. Explain your answer in clear and correct English. 16 LABORATORY EXPERIMENTS IN GENERAL CHEMISTRY ed in question 4...
Experiment 8 Conservation of Mass kussion: action: 170 Mole wt. g/mol Aqual the combined masses of all the reactants that were initially present. Furthermore, we fter any chemical reaction, the total mass of new products and any left over reactants) will a predict the mass of each product that will be formed if we know the molecular weight or the formula (from which we can predict the molecular weight). As an example, consider the dissolve the two substances in water,...
lab 1 measurements physics
Figure #1 : Pendulum PROCEDURE: and record their actual masses in the data table below 1. Weigh the 500g and 200g masses Table # 1: Mass values Nominal Mass Value 200g Ratio of masses: Actual Mass Value 50D Nominally: 5/2-2.5 Actual Keep this ratio in mind as we do the experiment to see if it affects our values 2. Attach the 500g mass to the line and attach it to the holder such that the length...
i
uploaded everything that was given. Where would I find the
experiemental values?
Complete the calculation summary below. READ THE EXPERIMENTAL DISCUSSION FIRST! REPORT ALL ANSWERS TO THE CORRECT SIGNIFICANT FIGURES. SHOW CALCULATION SET-UP on the next page. PART B: Molarity Determination via Solution Stoichiometry 7.625 g Mass of Empty 50 mL Beaker 7.976 g Mass of Beaker and NaCl (final heating) Mass of NaCl Produced (Experimental Yield of NaCl) moles Moles of Na,CO, Consumed 0.00500 Liter Volume of Na,CO,...
Anita Math Acid-Base Titrations Compatibility Mede Saved to this PC T Tools Tell me what you want to dos Design Layout References Malings Review View Help Design Layout A AAa E wRo 112 AaßbCcl AaBbC AallbCcl AaBbCcl AaBbCcD AaBbC daBbCel & .A . Emphasis Heading 1 1 Normal Subtitle Tele Intense Q S Strong Font Styles Paragraph Acid /Base Titrations: Pre-Laboratory Assignment 1 Give at least two characteristics desirable in a primary standard. 2. Define equivalence point and titration gnd...
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