An analyst weighs the same tablet three times on a well calibrated analytical balance and obtains the following masses: 1.2356g, 1.2351g and 1.2349g. These differences are likely due to: A) instrument error  B) gross error  C) random error D) systematic error

Q: The mass unit associated with density is usually grams. If the volume (in mL or cm3) is multiplied…

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Q: Underline significant figures 24040 0.04800 4.020 1.08 x 105 0.0022 9000000 2.00 x 10-5 8.60 x 102…

A: The Significant figures are determined by using the rules of significant figures, 1. Non Zero digits…

Q: Trial 1 Flask Reference Drops Net of Acid added Acid 15 drops drops of 25 (ref- expt) UMCO₂…

A: The main ai of this experiment is to determine the buffering capacity of fish blood using a…

Q: Use the References to access important values if needed for this question. A soda bottle is found to…

A: Consider the given information as follows; The volume of the soda bottle = 772 mL     The volume of…

Q: A calculator is found to have a mass of 118 grams. Using unit analysis, show what the mass of this…

A: Given, mass = 118 gm this measurement change into lb

Q: When answering this problem, report the answer with the appropriate number of significant figures.…

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Q: 2. You are weighing a solid on our analytical balances and are weighing by difference. Your initial…

A: In the substraction of two uncertain numbers the uncertainty of the difference is the sum of the…

Q: A measurement of the mass of a specimen was determined to be 4.203 +- 0.001 g. What is fractional…

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Q: A solution of F is prepared by dissolving 0.0738 + 0.0006 g NaF (molar mass = 41.989 + 0.001 g/mol)…

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Q: A small amount of resin weighing 4.56g occupies a height of a 10mL graduated cylinder equivalent to…

A: Mass of resin = 4.56 g  Initial volume = 1 ml  Final volume = 1.7 ml  Density of resin = ?

Q: The points on the bullseye are measurements whose exact value is the center of the bullseye.…

A: The objective of the question is to identify the correct statement.

Q: E. A student is told to determine the density of a solid unknown cylinder. The mass of the unknown…

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Q: Drag the answers that have been correctly rounded to the appropriate number of significant figures…

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Q: It was determined that the average CHEM110 student extracts 1.42 of starch from every 100 g of…

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Q: Use the lab introduction to answer the following question. When answering this problem, report the…

A: The unknown concentration of a solution can be identified by determining the absorbance value of the…

Q: Give two examples of the offset errors

A: Offset error arises due to the initial point is not calibrated to zero.

Q: What is the percent abundance (in units of percent) of zinc in a sample whose density is 7.639 g/mL…

A: The explanation is given below-

Q: Express the corresponding readings, taking into account the figures that you can read with certainty…

A: In the given scale we have ten divisions between marked values. That mean we have ten divisions for…

Q: If 10.00 mL (measured using a volumetric pipette) of a solution is pipetted into a 50 mL beaker…

A: The mass per unit volume of a substance is known as the density of the substance. The density of a…

Q: (285.0 x 10°)- (1.300 x 10')] × 2.8988 Express your answer to the appropriate number of significant…

A: Following are the appropriate answers of the given questions.

Q: 3.) Perform the following calculations. Express your answers in scientific notation using the…

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Q: Convert a speed of 751 cm/s to units of inches per minute. Also, show the unit analysis by dragging…

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Q: A pycnometer is a glass flask with a tight fitting glass stopper that can be used to determine the…

A: A pycnometer is an apparatus that can be used to determine the density of an insoluble solid by…

Q: Complete each of the following calculations, and give your answer to the correct number of…

A: Answer:In the given problem we have to perform the fundamental mathematical operations and have to…

Q: A solid object has a true mass of 91.4132 pounds. A student measured the mass of the object in a…

A: Measured mass is equal to actual mass plus the value of  percentage error of actual mass.

Q: Advertised mass of Fe2+ per tablet is 18mg Trail 1 = 0.0200 g and Trail 2 = 0.00794 g Calculate…

A: Given :  Advertised mass per tablet  = 18 mg 1 g = 1000mg  So Mass of iron in trial 1  = 0.0200 g  =…

Q: Suppose you have 150. mL of a substance with a density of 42.0 g/dm3 and want to determine the mass…

A: 150 mL of a substance has a density of 42.0 g/dm3 .We have to calculate the mass of the substance…

Q: A pycnometer is a glass flask with a tight fitting glass stopper that can be used to determine the…

A: In order to find the density of the unknown metal alloy sample, we have to find the mass of the…

Q: A doctor prepared a drip of 60 mL per hour for a patient in ward B,  while the correct dose of  62…

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Q: A solution of F is prepared by dissolving 0.0827 ± 0.0006 g NaF (molar mass = 41.989 + 0.001 g/mol)…

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Q: If a large marshmallow has a volume of 3.00 in3in3 and density of 0.242 g/cm3g/cm3, how much would…

A: Given :-  density = 0.242 g/cm3  volume = 3.00 in3  To be calculated :-  mass (in grams)

Q: 3. A student is using a 10 mL volumetric pipet to dispense water and wants to test how accurate the…

A: A numerical problem based on uncertainty measurements, which is to be accomplished.

Q: 1. The true value of a particular measurement is 131.0 µg/L. Four chemists (A, B, C and D) each…

A: We need the answers of Q.1 to solve Q.3. So let's start from Q.1 #1:  Given the true value of the…

Q: The following data was reported for the density of a soft drink (pop). The true density of the pop…

A: In the question, the true value , the average value and the different set of data collected for the…

Q: A pycnometer is a glass flask with a tight fitting glass stopper that can be used to determine the…

A: The ratio of mass to the volume is known as density.

Q: Your laboratory instructor has given you two metal cylinders. The mass of each sample was determined…

A: The number of significant figures in a measurement decided by the least count of instrument or…

Q: Give an example from which the difference of Accuracy and Precision is described and explain why it…

A: Accuracy is the degree of closeness of measurements to the true value or reference value Precision…

Q: The mass unit associated with density is usually grams. If the volume (in mL or cm) is multiplied by…

A: Volume and density of marshmallow are given whose mass is to be determined in grams.

Q: Using the calculated experimental average density of the liquid samples as reference, what is the…

A: Density = (Mass ÷ Volume)

Q: A volumetric flask that is to be used to measure volume is supposed to be marked at 10.00 ml but is…

A: A volumetric flask is a type of laboratory glassware designed to measure a specific volume of liquid…

Matter and Measurement

In the universe, there is matter, energy, and void space. The universe contains energy and void space. The definition of matter can be considered as something which possesses mass and consumes space. Chemistry is that branch of science which deals with the study of matter. Under chemistry, nature, composition, and the changes occurring to matter are discussed.