A 1.25-mL flask and stopper have a mass of 79.310 g. A 25.0-mL sample of an unknown organic liquid is pipetted in the flask, and the flask, stopper and liquid have a total mass of 97.010g. Find the density of the unknown liquid and express the answer in the correct number of significant figures

Q: Another empty container with an unknownvolume is weighed and found to have a mass of 81.2 g. The…

A: Given data mass of empty cylinder = 81.2 g density of liquid = 1.015 g/cm3  mass of (cylinder +…

Q: length, I = 2.20 in width, w = 2.91 in height, h = 10.4 in +1 in Calculate the height, h, of the…

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Q: A 38.6 kg marble slab is shown above what is its density give your answer to the nearest tenth _…

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Q: Part 2. Significant Figures of log measurements. Perform the following calculations and report each…

A: For calculating the significant figures of log measurements, at first, the number of significant…

Q: I’m having trouble with a homework problem.A graduated cylinder contains 155mL of water. A 15.0-g…

A: The problem asks for the final level (volume) of water in the cyllinder after addition of iron and…

Q: A flask containing 7.50 mL of a liquid weighs 168.1 g with the liquid in the flask and 160.1 g when…

A: Density :-  It is defined as the ratio of mass of a substance to volume of that substance under the…

Q: A flask containing 9.55 mL of a liquid weighs 157.2 g with the liquid in the flask and 148.4 g when…

A: Given: Weight of liquid containing flask=157.2 g Weight of empty flask= 148.4 g  Volume of the…

Q: What is the mass of 1000cm^3 of gold? The density of gold is 19.3grams/cm^3.

A: The mass of gold is calculated in step two.

Q: Indicate the number of significant figures in each number. If thenumber is an exact number, indicate…

A: a) 305,435,087 (2008 U.S. population) - unlimited number of significant figures This is the…

Q: Calculate the total mass of sodium chloride in the world's seawater. The total volume of seawater is…

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Q: Determining the Number of Significant Figures in a Calculated QuantityThe width, length, and height…

A: Width of the box (b) = 15.5 cm Length of the box (l) = 27.3 cm Height of the box (h) = 5.4 cm Volume…

Q: A chemistry student needs 40.0 mL of glycerol for an experiment. By consulting the CRC Handbook of…

A: Given  Volume of glycerol = 40 mL  density of glycerol  = 1.26 gram cm-3 or 1.26 gram/cm3 Mass of…

Q: Two students measure and record the volume of the same sample of water in the graduated cylinder…

A: The reading of the volume of the graduated cylinder depends on the distance between the two nearest…

Q: What is the volume of iodine if it has a mass of 2.5kg and a density of 4.93/cm to the 3rd power?…

A: Answer of this question :-

Q: Mass (g) Height (cm) Diameter (cm) Cylinder A 15.560 5.11 1.20 Cylinder B 35.536 5.90 1.30 In…

A: Volume can be calculated using the following equation.

Q: Decide which of the earlier measurements was the most accurate, and which was the most precise.

A: Accuracy determines that how close a measurement to the accepted value or true value. Precision is…

Q: A sheet of aluminum (Al) foil has a total area of 1.000 ft^2 and a mass of 3.806g.  What is the…

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Q: A bedroom has a volume of 115 m³. What is the volume in units of cm³? Complete the blanks to show…

A: In order to convert a measurement from one unit to another unit, we need to know the conversion…

Q: liquid density dimethyl sulfoxide -1 1.1 g-mL tetrahydrofuran -1 0.89 g mL diethylamine -1 0.71 g-mL…

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Q: A chemistry student needs 55.0 mL of tetrahydrofuran for an experiment. By consulting the CRC…

A:

Q: Horse height is measured in hands, one hand equaling exactly 4 inches. If a horse is 15.5 hands…

A: The unit conversion method can be used here.

Q: An empty container with an unknown volume is weighed and found to have a mass of  84.7 g.  The…

A: Given that,Mass of the empty container is 84.7 g and the mass of the filled container is 150.9…

Q: A chemistry student needs 75.0 mL of tetrahydrofuran for an experiment. By consulting the CRC…

A: Density (d) tells us how much mass is present in given volume of solution. It is calculated by…

Q: Perform the operation and express your answer in scientific notation with the correct number of…

A: Since we only answer up to 3 sub-parts, we’ll answer the first 3. Please resubmit the question and…

Q: hree students (A, B, and C) are asked to determine the volume of a sample of ethanol. Each student…

A: Precision refers to the closeness of the measured value to each other, while accuracy is how close…

Q: 1.40 A small cube of aluminum measures 15.6 mm on a side and weighs 10.25 g. What is the density of…

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Q: Carry out the following operations and express the answer with the appropriate number of significant…

A: For multiplication and division: Check the LEAST number of significant figures. For addition and…

Q: Which numbers are exact (and therefore have an unlimited number of significant figures)?a. p =…

A: The number that has an unlimited number of significant figure is an exact number.

Q: Subtraction - express all answers in the correct significant figures - be sure to include units…

A: Significant Figures -  They indicate the reliability of a number that tells us how many digits are…

Q: If I have these values and need to calculate percentage, what are the significant figures I need?…

A:

Q: Calculate the following answer and round to proper significant figures, Don't forget units. 2.22g x…

A: Calculate the answer and rounding off---

Q: A chemist prepares a mixture of ethanol and water at a temperature of 23.0 °C. He measures out 38.5…

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Q: Carry out the following calculations, making sure that youranswer has the correct number of…

A: Significant figures:   Significant figures /digits are the numbers that have proper significance to…

Q: How many significant figures should be retained in the result of the following calculation? 12.00000…

A:

Q: liquid density methyl acetate 0.93 mL pentane 0.63 mL acetone 0.79 mL g tetrahydrofuran 0.89 mL…

A: Density is a physical properly that defines mass of a substance present per unit volume of it. Its…

Q: 1. A wooden square block is placed on an analytical balance giving a mass of 5.1977 g. The square…

A:

Q: 4- Perform the following calculation and report the result to the correct number of significant…

A: The correct option is D i.e 2.8  as we significant upto 2 decimal places then 2.81690 = 2.8

Q: A chemistry student needs 55.0 g of dimethyl sulfoxide for an experiment. By consulting the CRC…

A: Given data: The mass of dimethyl sulfoxide = 55.0. g. The density of dimethyl sulfoxide = 1.10…

Q: The product of 2.35 x 10 and 6.435 x 103 (multiplied together) to the correct number of significant…

A: The given values are - 2.35×105  6.435×10-3   On multiplying above values - Thus, after rounding it…

Q: The mass of fuel in an airplane must be determined before takeoff. A jet contains 18695 L of fuel…

A: The density and volume of fuel is given which can be used to determined the mass of fuel by using…

Q: A rectangular solid has a mass of 1.490 kilograms.The solid measures 4.3cm by 10.6cm by…

A: Mass and volume are extensive property while the ratio of both this extensive property is an…

Q: Suppose you have two 100-mL graduated cylinders. In each cylinder, there is 20.0 mL of water. You…

A: Volume of water = 20.0 ml  Density of lead cube = 11.3 g/ml  Density of aluminium cube = 2.70 g/ml…

Q: How many significant figures should be retained in the result of the following calculation? Co…

A: Given information,  12.00000 × 0.9893 + 13.00335 × 0.0107

Q: A liquid has a density of 1.27g/mL. What is the mass of 20.0mL of this liquid? Show all required…

A: A liquid has a density of 1.27g/ml. A liquid has a volume of 20.0mL. Mass=?

Q: A cylindrical tube 13.7 cm high and 1.20 cm in diameter is used to collect blood samples. How many…

A: The expression for finding volume of cylinder having radius of r and height of h is as follows,…

Q: Sulfuric acid is used in car batteries. A driver needs to add 1.4 kilograms of sulfuric acid to his…

A: Driver needs 1.44 kg (1440 g) sulfuric aciddensity = mass/volumegiven, density of sulfuric acid =…

Q: A chemistry student needs 70.0 g of dimethyl sulfoxide for an experiment. By consulting the CRC…

A: Given  Mass of dimethyl sulfoxide = 70 gram   density = 1.10 gram.cm-3 or 1.10 gram/cm3 Volume = ?

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.