Add or subtract the following measurements. Be sure each answer you enter contains the correct number of significant digits. 15.800 mL - 1.9 mL mL %3D O mi. 3.7 mL + 15.67 mL O ml. 11.90 mL + 5.777 mL %3D

Q: Select the answer to the following subtraction using the proper number of significant figures: 16.82…

A: When we add or substract  significant figures then our answer should have same number of significant…

Q: Which has the smallest density? 1.) 1.5 g/mL 2.) 1.5 g/L 3.) 1.5 mg/L 4.) 1.5 g/cm3

A: To compare the given densities first of all we convert the unit of density in g/mL unit.

Q: Which value is NOT equivalent to the others?A. 500 m      C. 5000 cmB. 0.5 km      D. 5 × 1 0 11 nm

A: Given values, A. 500 m      C. 5000 cmB. 0.5 km      D. 5 × 1 0 11 nm

Q: 1. Convert each of the following to the indicated unit and express your answers in scientific…

A: To convert from one unit to another , multiply by a conversion factor.

Q: Perform these operations in scientific notation with the appropriate number of significant figures.…

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Q: Add or subtract the following measurements. Be sure each answer you enter contains the correct…

A: Calculations Involving Significant Figures The results of various measurements are to be added,…

Q: 18. In the diagram below, label the substance layers based on their density values. Water: 1.00g/mL…

A: A substance with higher density than other lies below. So,if there are 3 substances with no…

Q: Read the buret (burette) volume and report your reading with the proper number of digits. O mL 5 41…

A: The burette is used to measure the volume of liquid/solution used in a titration. It is measured…

Q: EMENT AND MATTER Counting significant digits when measurements are added or... Add or subtract the…

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Q: Calculate the percent error of the density of ethanol is measured to be 0.73 g/mL (true value is…

A: The formula for percent error (PE) is - PE = (| MV - TV |)/ | TV | Where, MV = measured value…

Q: 4. A student is asked to measure 30.0g of methanol (d = 0.7914 g/ ml at 25°C) but only has a…

A: Given that the mass of methanol is 30.0 g. The density of methanol is 0.7914 g/mL. To find the…

Q: Add or subtract the following measurements and round off your answer: (a) 106.7 g + 0.25 g + 0.195 g…

A: Significant figures are the figures in a number that expresses the value and the magnitude of a…

Q: An atom of Hydrogen has a diameter that is 1.5 × 10-10 m. Convert this measurement to cm O 1.5 x 107…

A: 1.5 * 10-10 m  = How many cm ?????

Q: Add or subtract the following measurements. Be sure each answer you enter contains the correct…

A: The given measurements are: 18.72 mL-3.6 mL9.727 mL+3.80 mL17.670 mL+14.8 mL

Q: Which of the following pieces of glassware CANNOT be used to measure volumes of liquids accurately?…

A: Interpretation- To determine that which of the given glassware cannot be used to measure volume of…

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: The weight of a rock is measured to be 0.072 lbs. After placing the rock in a graduated cylinder…

A: * Mass of a rock = 0.072 lbs ( lbs = 453.592 g ) = 32.65 g * Initial volume of graduated cylinder =…

Q: Convert the following measurement. 4 1.7 x 10 2 cm %3D ms Help

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Q: The density of a pure substance is its mass per unit volume. The density of hexane has been measured…

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Q: If 1in=2.54cm, how many centimeters are in 12.5? Be sure to answer the correct number of sig figs.

A: The required conversion factor is: 1 in = 2.54 cm  We have to convert 12.5 in into cm.

Q: 5. Write down a volume reading for each graduated cylinder below. Be sure to determine the last…

A: In the graduated cylinder, the bottom of meniscus is used to determine the volume of a liquid.

Q: Solve the following problems. Make sure to express your answers in scientific notation and end with…

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Q: You are asked to determine the mass of a piece of copper using itsreported density, 8.96 g/mL, and a…

A: Given Initial volume of water in a cylinder is 105 mL. The final volume of water in a cylinder is…

Q: The volume indicated by the figure is mL 1 -2 Select one: 0.22 2.78 O 3.05 O 2.20

A: While indicating volume in volumetric burette, always go for the lower maniscus.

Q: .5 mL/min. A) 2.1 min B) 1.1 min C) 1.2 min D) 2.2 min

A: Coreect option is B  1.1mint

Q: 14.37 mL + 251.5 mL

A: In any measured quantity, digits known with certain along with one last uncertain (or inexact) digit…

Q: How would I set up this problem. A graduated cylinder contains 19.0mL of water. What is the new…

A: The density tells you how many grams are equal to 1mlDensity = ρ = mass/volume The density of silver…

Q: Round off to three significant figures and express in scientific Part A notation. 4700000 L 4.70 x…

A: In scientific notation, a number can be expressed as :  N × 10n Where N is the number with a single…

Q: -3 -2 2.6 2.70 2.65 2.650

A: A graduated cylinder is used in a laboratory to deliver an exact volume of liquid in a reaction…

Q: |. A student is asked to measure 30.0g of methanol (d = 0.7914 g' ml at 25°C) but only has a…

A:

Q: 80. Perform the following calculations and report your answer with the proper number of significant…

A: Significant figures are the number of digits used to express a measured quantity. The number of…

Q: Give the measurements for the 10 and 100 ml graduated cylinders shown. 60 50 10 ml 40 30 20 10

A: In the measurement for the cylinder, we consider only the lower line of the filling substance.

Q: Convert 4.39 µm to inches. 4.39 um 3.94 x10-4 in %3D

A: First of all you should convert this micrometer to meter, and then you know that 1 meter = 39.37…

Q: Add or subtract the following measurements. Be sure each answer you enter contains the correct…

A: Addition and substraction of significant figures :- The result of addition or substraction of…

Q: Convert the measurements into its equivalent value as indicated by the unit   38oC…

A: The unit conversion table is as follows: 1 Milliliter(mL) 0.001 Liter(L) 1 centimeter(cm) 10…

Q: A 72.0g sphere of manganese (density = 7.20 x 103g/L) is dropped into a graduated cylinder…

A: Given: Mass of sphere of Manganese=72.0g Density = 7.20 x 103g/L Volume of water in graduated…

Q: Add or subtract the following measurements. Be sure each answer you enter contains the correct…

A: Rules for significant figure   1)All non zero integer are significant    2)Exact number have…

Q: Height of a 100 mL graduate cylinder in cm 23.42 cm height in m inches km feet

A: Given : Height of cylinder in cm = 23.42 cm

Q: 50 ml 4790 mL 16.9 mL 851 mL

A: We will use ideal gas equation

Q: d or subtract the following measurements. Be sure each answer you enter contains the correct number…

A: In addition or substraction answer got the least decimal places.

Q: calculate the mass of a liquid with a density of 3.20 g/ml and a volume of 25.0 ml

A: Density is the ratio of mass to the volume.   The mathematical expression of density is given by

Q: The following measurements of the volume of an object were made by different technicians in a lab.…

A: The question is based on the concept of analytical chemistry. we have to identify which set of…

Q: Add or subtract the following measurements. Be sure each answer you enter contains the correct…

A: In order to find the solution to the given problems, we need to perform the given operation and…

Q: 108 mm2 = __________km2   A. 10-6        B. 10-4   C. 102   D. 106   E. 104

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Q: Solve the problem below and select the choice that expresses the answer using correct scientific…

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Q: What is the specific gravity of a substance that has a density of 0.782 g/ml? a. 0.782 g/mL b. 0782…

A: We know that, specific gravity of a substance obtain from divide the density of water in density of…

Q: What is the correct measurement on this graduated cylinder? 60 50 53.0 mL 52.0 mL 55.0 mL

A: Measurement of image shown in question

Q: Multiply or divide the following measurements. g 502.42 g 0.87 mL = %3D mL mol 0.934 L X 3.40 L…

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Q: Which instrument would be used to measure the volume of a diamond? 1. graduated cylinder…

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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.