Very large and very small numbers are easier to write in scientific notation. For example, the number, 0.0000516 would be written 5.16  10-5 in scientific notation. How would you enter this number in WebAssign using scientific notation to 3 significant figures? (WebAssign uses e-notation for entering scientific numbers, for example, 1.23e-4.)

Q: Round off each of the following numbers to three significant digits, and express the result in…

A: Round off each of the following numbers to three significant digits, and express the result in…

Q: A chemistry student needs 60.0 g of tetrahydrofuran for an experiment. By consulting the CRC…

A: The density is an intrinsic property that given the mass of an object per unit volume.…

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

A:

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Q: 1. Express the number = -890,000 in scientific notation; 2. Express the number = 4.239 x 10² in…

A: Since you have posted a question with multiple sub-parts, we will solve the first three subparts for…

Q: A chemist adds 4 drops of hydrochloric acid to a beaker. What kind of number is "4" in this example?…

A: Here the chemist is adding 4 drops of hydrochloric acid so it not a measured number and the…

Q: A cheetah ran 1000.0 meters in 33.27 seconds, how fast is it running in miles per hour (MPH)? Note:…

A: Given information: 1 miles = 1.609 km              = 1609 m 1 hour = 3600 sec

Q: A chemistry student needs 30.0 g of diethylamine for an experiment. By consulting the CRC Handbook…

A: Ans

Q: Using the following form for your answers, solve the following conversion: 1123 cm^3 (cm cubed) is…

A: Given: Value in cm3 = 1123 cm3

Q: The density of vanadium metal is 6.11 g/mL. What is the volume in milliliters of a cube of vanadium…

A:

Q: A chemistry student needs 50.0 g of diethylamine for an experiment. By consulting the CRC Handbook…

A: Given : Mass of diethylamine required = 50.0 g And density of diethylamine = 0.706 g/cm3

Q: A brick of metal has these dimensions: 8.88 in x 7.95 in x 5.41 in. It has mass 17.8 kg. VWhat is…

A:

Q: A chemistry student needs 45.0 mL of diethmylamine for an experiment. By consulting  the CRC…

A: Given,Volume of diethylamine = 45.0 mL = 45.0 cm3         (1mL = 1cm3)Density of diethylamine =…

Q: The diameter of an atom is approximately 1 x 10-10m. What is the diameter in millimeters? (Hint,…

A: Given, the diameter of an atom =1×10-10 mwe are asked to convert this into milimeters.

Q: How many significant figures does 40100 mi has? How many significiant figures does 11 degrees…

A: Calculate number of significant digit in the given data---

Q: A brick of metal has these dimensions: 9.59 in x 6.09 in x 5.79 in. It has mass 11.7 kg. What is the…

A:

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

A: Given,Density = 0.626 g/cm3,Volume = 40.0 ml.

Q: Perform this calculation by first converting the numbers into scientific notation and then…

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Q: Perform the following calculations and report each answer with the correct number of significant…

A: As per our guidelines, we are supposed to give answers for the first three subparts kindly repost…

Q: ) A student measured the volume of a sample and reported the value as 48.93 mL, which digit in the…

A: 1. Volume measured by the student is 48.93 ml . Thus 4, 8 and 9 are the certain numbers where as…

Q: 1. How many significant figures are in the number 0.0840900? Write the following number in standard…

A: Zero between digits is significant Zero left to decimal is non significant Zeroes just after decimal…

Q: How many significant figures would this calculation have if it were completed: (9.04-8.23 +21.954…

A:

Q: 1.7464 x 10° ms Express your answer in scientific notation to three significant figures. | ν ΑΣφ ?…

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Q: A chemistry student needs 80.0 g of dimethyl sulfoxide for an experiment. By consulting the CRC…

A:

Q: Perform the following calculations and be sure to report your answer using correct number of…

A: Since you have posted question with multiple sub-parts, we are entitled to answer the first 3 only.…

Q: 0,0056542  write in scientific notation to two significant figures

A: The number given is 0.0056542.

Q: What is the mass, in grams, of 150 mL of liquid iron if its density is 7.874 g/cm3? Make sure to…

A: The density of a substance is equivalent to the mass of the substance per unit of its volume.

Q: How many significant figures are in the number 0.0204600? Express this number in scientific…

A: Zeroes before 2 are not countable but after 6 are countable. So it has 6 significant figures.

Q: A chemistry student needs 10.0 g of tetrahydrofuran for an experiment. By consulting the CRC…

A: Given that: weight of tetrahydrofuran = 10 g density of tetrahydrofuran = 0.889 g. cm-3

Q: GenAlex Medical, a leading manufacturer of medical laboratory equipment, is designing a new…

A:

Q: 2. For this question you'll need to perform calculations for the data listed below. Imagine you…

A: The solution of the question is given below:

Q: 2. A circle has a radius of 0.58 yd. What is the area in cm2 ? 3. What is the volume of a sphere, in…

A:

Q: How can the number 642,000 g be written to indicate that there are 4 significant figures?

A: The number 642000 has three significant figures.

Q: 1. Given that 1 kilomoeter (km) = 0.6214 miles; calculate the following:       How many miles is 10…

A: 1 kilomoeter (km) = 0.6214 miles  as 0.6214 miles = 1 km  multiply both side by 10  so , 6.214 miles…

Q: 3. An Erlenmeyer flask is placed on an analytical balance giving a reading of 124.2218 g. Exactly…

A: Given: Mass of empty flask = 124.2218 g. Volume of water added = 25.00 mL. And mass of flask with…

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

A:

Q: Express the following numbers in fixed notation (e.g., 1.23 x 102- 123), and give the number of…

A: Given,  Express the following number in fixed notation and give number of significant figures in…

Q: How manny cars are there in a long freight train if it takes the entire train 2.00 min to pass a…

A: Given, the long freight train takes time = 2 min Train travels to station per hour = 40 miles per…

Q: Question 5- Calculate the following and express your answer in scientific notation with the correct…

A: The significant figures of a number written in positional notation are digits that carry meaningful…

Q: Convert the following numbers to 2 significant figures, use scientific notation and use the (lowest/…

A: Significant figures are defined as each of the digit present in a number which is used to express…

Q: Make the given temperature conversions. If the temperature outside is 101.0 °F, what is the…

A: From the formula-->  °F=(°C*9/5)+32   (101°F − 32) × 5/9 = 38.333°C

Q: 0.000000100092 in scientific notation to two significant figures

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Q: 1.-How many significant figures are in the following numbers? 0.70620 a. b. 5010 4548 C. d.…

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Q: Perform the following conversions. You must use dimensional analysis and put your answer in…

A: Here by using unit and dimensional analysis we have to solve the following conversions. For this we…

Q: The number 1960900, when rounded off to 4 significant figures, would appear as _______   a. 1.961…

A: Scientific notation: Scientific notation is a way of expressing numbers to be conveniently written…

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: 1. Perform the following calculations. Answer with the correct number of significant figures. (Pay…

A: Answer 1:

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.