Calculate the density of a substance for which 12 ml of the substance has a mass of 12.35 g Express your answer using the correct number of significant figures, and do not enter yOur answer using scientific notation Demity

Q: A metal cylinder weighs 49.999 mg. How many pounds (lb.) does it weigh? Use scientific notation to…

A: Given, Mass of cylinder = 49.999mg

Q: Use unit analysis to show how to calculate the volume occupied by 16.6 grams of lead. (The density…

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Q: Perform the following calculation, reporting your answer to the correct number of significant…

A: Rules for significant figure All non zero integer are significant Exact number have unlimited…

Q: Use the References to access important values If heeded for this question. Write each of the…

A: Given :-  8.89 × 10-3  7.77 × 104  7.71 × 103  8.06 × 10-5  To write :-  Above value in 3…

Q: percentage of matter

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Q: For each of these problems, set up the calculation as described in your worksheet, using the proper…

A: As we know the conversion factor is  1 inch = 2.54 cm. Using this equation we can easily convert…

Q: The density of lead is 11.35 g/mL. What is the volume of 85 g of lead? Show set-up in dimensional…

A: Density is one of the physical property of the matter.  It gives the relation between mass with the…

Q: Express the number 554,780,000,040 in scientific notation to three significant figures.

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Q: For Questions #6 through #14, perform all of the following for each question: 1. calculate the…

A: Dear student,  As you have asked multiple question but according to guidelines we will solve first…

Q: A chemist determined by measurements that 0.050 moles of iron participated in a chemical reaction.…

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Q: Osmium has a density of 22.6g/mL. What volume would be occupied by a 13.7g sample of osmium? Report…

A: Given that:  density, d = 22.6 g/ml Mass = 13.7 g V =?

Q: Calculate the density for a solid by volume displacement with a mass of 12.0013 g, initial volume of…

A: Density :   Density is a measure of how compact the mass in a substance or object is. It is defined…

Q: Express the number 554,780,000,040 in scientific notation to three significant figures.

A: In scientific notation, we use the form A X 10-B where A is the approximate number with required…

Q: How many significant figures are in the measurement 5000 g? Group of answer choices

A: While doing a big calculation, which digits really give the informtaion on how precise is the…

Q: The unit for density found in many density tables is kg/m cubed. At a certain temperature, the…

A: A numerical problem based on unit conversion, which is to be accomplished.

Q: In the lab, a student measures a teaspoon of an unknown liquid. The teaspoon of liquid has a mass of…

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Q: Convert 460.3 ml to quarts. Express your answer with the correct number of significant digits.

A: Since we know that 1 milliliter (ml) = 0.001056688 quart (qt). Where ,  Milliliter (ml ) is a unit…

Q: When subtracting or adding two numbers in scientific notation, why do the exponents need to be the…

A: To find: The reason for exponent to be same when adding or subtracting two numbers in scientific…

Q: An object measuring 25.0 inches will have a length of _____centimeters.  round your answer to the…

A: We will use the inch-cm relation: 1 inch = 2.54 cm

Q: Calculate the mass of ammonia (NH, ) that contains a million (1.0× 10°) hydrogen atoms. Be sure your…

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Q: Calculate the tare weight for an object placed in a 10.9114 g container with a total mass of 16.4545…

A: Container that when subtracted from gross weight yields the net weight is regarded as tare weight.…

Q: What is the gas mileage in miles per gallon? Express your answer using two significant figures.

A: To convert Kilometre per Litre to miles per gallon (mpg), multiply the Kilometres per litre  value…

Q: How many low-dose 81 mg aspirin tablets can be made from 1.21 kg of aspirin? (do not answer your…

A: Mass of aspirin contained in 1 tablet = 81 mg Total mass of Aspirin available = 1.21 kg

Q: Calculate the density of aluminum if it has a mas of 83.6g and a volume of 23.99 mL. Use correct…

A: Weight of Aluminium = 83.6 gm Volume of aluminium = 23.99 ml

Q: A block of aluminum has a mass of 675.27 g and a volume of 250. mL. Calculate the density of the…

A: A numerical problem based on density determination, which is to be accomplished.

Q: Determine the density of an object that has a mass of 149.8 g and displaces 12.1 mL of water when…

A: Given     mass of object = 149.8 g  Volume of object = 12.1 mL   To find : density of an object

Q: When numbers are very small or very large, it is convenient to either express the value in…

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

Q: A surveyor measures the length of a surveying chain containing 1000 chain links. The length is…

A: Length is first converted from kilometers to centimeters.

Q: Which human error would contribute to an incorrect volume measurement? measuring to an additional…

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Q: The density of silver is 10.49g/mL. What is the volume in milliliters (mL) of 1.52 pounds of silver?…

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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: Convert the following to scientific notation, keeping only 2 significant figures: 0.000892

A: Significant Figures or Numbers: A significant number can be defined as the total number of the…

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: A 3.24 g object is immersed into a graduated cylinder filled with water. Use the following figure to…

A: Given : Mass of object = 3.24 g

Q: Rule: When we multiply or divide numbers, we should round the result to the same number of digits as…

A: Unit conversion is a multi-step process that involves multiplication or division by a numerical…

Q: Convert 54.2 gal to L by using 4 quart = 1 gal. and 1.06 quart = 1L %3D Show set-up in dimensional…

A: In this question, we want to convert one unit to the another volume unit.  You can see below.

Q: The density of a metal is calculated as follows. The weight of 57.4 grams is divided by the volume…

A: We have to calculate density considering the Sig figs.

Q: The label on a box of cereal gives the mass of cereal in two units: 978 grams and 34.5 oz. Use this…

A: For the measurement of units there are two systems English and metric system. In the English system,…

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

A: Significant figure is the count of digits of a number required to interpret degree of accuracy which…

Q: A supposedly gold nugget displaces 21.7 mLmL of water and has a mass of 417 gg. Express your answer…

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Q: A brand new, unopened gallon container strawberry "-Flavored" milk , when weighed in its plastic…

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Q: When you perform the following operations, how many significant figures should your answer have?…

A: The given data contains, 111.1300 kg + 2222 g

Q: Change the following measurement to the appropriate SI unit. The final unit required is shown to the…

A: Given information:The displacement of an automobile engine is 2.47×102 in.3

Q: Calculate the mass of glucose (C,H,,06) that contains a billion (1.0 x 10°) oxygen atoms. Be sure…

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Q: Use the first menu to select the type of measurement represented by the unit. Use the second menu to…

A: Significant figure are used in calculation and to  measure and contribute more accuracy in…

Q: Perform the following metric conversion. How many centiliters are in 0.39 kiloliters?

A: Given that :  0.39 kiloliters  1kl = 105 centiliter

Q: Give the density values you found for gold, lead, foam, ice, iron, wood, rubber and the mystery…

A: Given : Different type of substance or compound  To find : Density of the substance  Solution : As…

Q: (3.0045)(0.003468)(11.07)/(12.3-6.5) Determine the number of significant digits that would be in the…

A: The numerator part consists of five significant figures (3.0045), four significant figures in…

Q: Calculate the mass of an object with a volume of 12.8 mL and a density of 0.644 g/mL. Express the…

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States of Matter

The substance that constitutes everything in the universe is known as matter. Matter comprises atoms which in turn are composed of electrons, protons, and neutrons. Different atoms combine together to give rise to molecules that act as a foundation for all kinds of substances. There are five states of matter based on their energies of attraction, namely solid, liquid, gases, plasma, and BEC (Bose-Einstein condensates). 

Chemical Reactions and Equations

When a chemical species is transformed into another chemical species it is said to have undergone a chemical reaction. It consists of breaking existing bonds and forming new bonds by changing the position of electrons. These reactions are best explained using a chemical equation.