Is 0.468 meters exact, or measured?

Q: Use decimal notation to express 4.22 mg in grams?

A: When we convert grams to milligrams, the conversion factor is

Q: When rounding the number 2.348615 to 4 significant figures, what is the correct value?

A:

Q: A chemist has a block of aluminum metal (density is 2.7 g/mL). The block weighs 1.1 g. What is the…

A:

Q: A kilgram is 1000g?

A: The term SI base units refer to the seven units of measure which have been defined by the…

Q: Calculate (2.075 x 0.585)/(8.42 x 0.0045) Correct the answer by rounding off the number to the…

A: Significant Numbers are those numbers or digits in the given number which are used in mathematical…

Q: A computer chip has a width of 0.75 in. What is that distance in millimeters?

A: While converting from one unit to another a conversion factor is to be multiplied.

Q: 1)2347 mm to miles 2)70 nL in to Gallons 3)21367 dg to Mg? 4)1345 dm in to Km? 5) 780 ounces in to…

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Q: How many cubic meters (m³) are in 288 liters (L)? Round to the correct number of significant…

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Q: • If a car travels a distance of 241 km, what is that distance in miles?

A: Given Distance = 241 km

Q: How many centimeters in a millimeter?

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Q: Which answer represents the measurement 0.00569 g rounded to two significant figures?

A: Rules to rounding significant figures :- 1) " If the rightmost digit to be removed is  >5 then…

Q: Which of the following are exact numbers? a. There are 100 cm in 1 m. b. One meter equals 1.094…

A: a is the exact numbers  b is not exact it is approximate value

Q: if 54.9 ml of an oil weighs 52.780 g, what is the density of the oil?

A: The mass (m), density (d) and volume (V) of a substance are related as:

Q: How many significant figures are in the number 9.540x107?

A: The given number is = 9.540×10-7

Q: The density of iron is 7.86 g/cm. What is its density in pounds per cubic inch (Ib/in)?

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

Q: 4)1345 dm in to Km? 5) 780 ounces in to Kg?

A:

Q: you have a rock that displaces a volume of 15 cm (cubed) and a mass of 45 g. what is its density?

A: It is given that a rock displaces a volume of 15 cm3 and has a mass of 45 g.Since, the volume…

Q: An object weighs exactly five grams on an analytical balance that has an accuracy of 0.1 mg. To how…

A: The weight to be measured is 5g Accuracy = 0.1g

Q: The number 1.00430 has ________ significant figures.

A: The given number is 1.00430

Q: If the diameter of a sphere is 6.82 centimeters, what is the volume of the sphere in inches cubed?

A: Diameter = 6.82 cm  Radius = 6.82/2 = 3.41 cm  We have to find volume of sphere

Q: To the correct number of significant figures calculate log(4.399x104).

A: Significant figures are the digits of a number that have meaning in terms of accuracy or precision.

Q: e) 248 cm to millimeters

A: We have to predict the value in millimeters.

Q: how many micrometers are in 1.00 kilometers?

A: It is required to calculate how many micrometers (µm) are there in 1 km.

Q: The back inside cover of the book tells us that there are 5280 ft in1 mile. Does this make the mile…

A: 1 mile is given as equal to 5280 feet. When, 1 foot is converted into (1 / 5280) mile, which is…

Q: If a nanometer is one billionth of a meter (0.000 000 001 m), how many nanometers are there in one…

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Q: An object is determined to have a mass of 0.00180 g . How many significant figures are there in this…

A: Significant figures – calculation rules are as follows,Significant figure is a non-zero number…

Q: How can you tell what numbers are exact, and which are measured? For example, one mile, one meter,…

A: Exact numbers cannot be simplified and have an infinite number of significant figures. Measured…

Q: How many inches is 57.2 inches? You know that 1 in=2.54 cm.

A: Given information, 1 in = 2.54 cm 57.2 in = ?

Q: An object has a mass of exactly 5 g on an analytical balance that has an accuracy of 0.1 mg. To how…

A:

Q: A surveyor measures the length of a surveying chain containing 1000 chain links. The length is 0.096…

A: Answer :-  Length of single Chain link = 9.6 cm…

Q: Given that one inch is equal to 25.4 mm. How many feet equal 21.0 m?

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Q: what determines how many figures are significant in reported measurement values? What would be the…

A: In reporting measured values, the degree of uncertainty of a number read from a measurement…

Q: How many significant figures should be reported on a 25 mL buret?

A:

Q: How many kilometers are in 1.58 * 10^5 feet?

A: Here we are required to convert the following

Q: What are the basic four units of measurements?

A: These are the following basic units:

Q: The mass of a sample is 550 kilograms. Expresses that mass in milligrams? Express your answer in…

A: Convert kilograms to milligram

Q: The mass of premature babies is customarily determined in grams. If a premature baby weighs 1550g,…

A: Given : Mass in grams = 1550 g

Q: The density of bismuth metal is 9.8 g/cm3. What is the mass of a sample of bismuth that displaces…

A:

Q: How many significant figures are there in 0.1010 mm?

A: The significant figures refer to particular digits in a number. According to the measurement rule,…

Q: How many significant figures are in the number 8,600,000?

A: Significant figures are meaningful digits which are known with certainty. The number of significant…

Q: The height of a 100 mL graduated cylinder in cm is 24.0 cm.  what is the height in:  m inches…

A: Centimeter- A metric unit of length which is equal to one hundredth of meter It is unit of length.…

Q: How many significant figures are in the number 6.455x108?

A: Significant figures is termed as the total number of digit in a number including the last digit wose…

Q: what is the mass in miligrams of 567 ml of mercury? The density of mercury is 13.6 g/mL

A: Given: The volume of mercury= 567 mL Density of mercury = 13.6 g/mL Mass of mercury (in mg)=?…

Q: A sample that has a mass of about 21 g is placed on a balance that has a precision of 0.0001 g. How…

A: Precision means degree of reproducibility of the measurement. Precision 0.0001g means (+ or -)…

Q: How many significant figures should your result contain? What is the calculated density? Express…

A: Given calculation : density =68.895 g(23.5 mL -14.7 mL)1cm31 mL

Q: You were asked to determine the perimeter of the cover of your textbook. You measure the length is…

A:

Q: Is a meter about an inch, a foot, a yard, or a mile?

A: Conversion of meter to inch: 1 metre = 39.3701 inch Conversion of meter to feet: 1 metre = 3.28084…

Q: A sample that has a mass of about 25 g is weighed on a balance that has a precisionof 0.001 g. How…

A: The mass of sample with a precision of 0.001 g is in between 24.999 g and 25.001 g

Q: The conversion between inches and cm is 1 inch = 2.54 cm (exact conversion, this is a definition).…

A: Given that, 1 inch = 2.54 cm 12 inch = 1 foot To find: How many cm are in exactly 3 feet?

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.