When you perform the following operations, how many significant figures should your answer have?    (15.000 meters per hour x 10.5000 hours)  +  51 meters hint: units must match hint: First, do the operation in parentheses.  How many places past the decimal does the answer have? hint: What are the units of answer in parentheses?

Q: How many significant figures are in the number 0.0062500?

A: The meaningful digits which are known with certainty plus one digit which is estimated or uncertain…

Q: Indicate how many significant figures there are in (a) 0.305 0 (b) 0.003 050 (c) 1.003 X 104

A: a.  0.3050 Number of significant figure:  4   b.  0.003050 Number of significant figure:  4

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: How many significant figures are there in the answer for the following problem? [(143.7 - 121) x…

A: The given calculation is: [(143.7-121)*2.06]0.600 The above calculation has more than one operation…

Q: A liquid has a density of 0.870 g/mL.  What volume will 10.5 g of the liquid occupy?Report the…

A:

Q: what is the distance traveled in meters of a car traveling at 3.0 x 101 km/hr after 3.0 x 101…

A:

Q: Write the numbers 10, 100, and 1000 in scientific notation with two, three, and four significant…

A: Rules for significant figures are: 1.All non-zero numbers ARE significant.  2.Zeros between two…

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

A: The given number is = 9.540×10-7

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

A:

Q: How can I use scientific notation to convert the following expression into an "ordinary" decimal? By…

A: Scientific notations are used to express the very large or very small numbers in more convenient…

Q: Given that there are 2.2 lbs per I kg and 16 ounces per I pound, how many oz are there in 13 g?…

A: Given: Mass in g = 13 g.

Q: Solve with correct significant figures and units

A: As there are only 2 significant figures in both the valve

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

A: In multiplication or division involving significant figures, the final answer should be reported as…

Q: Add 2.23 x 10^4 and 2.7 x 10^3 Give the answer in the correct format with the correct number of…

A:

Q: A material has a mass of 7.0980E1 grams and a volume of 4.401E1 milliliters. What is the density in…

A:

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: A student sets up the following equation to convert a measurement. (The ? stands for a number the…

A: To convert 90 kg.m/s to g.m/s.

Q: An object has a density of 2.47 g/mL. What is the density in pounds/ft3?  Report your answer with…

A: Density is categorized under intrinsic property that remains unchanged for solids. It is obtained by…

Q: The average adult has approximately 77.0 milliliters (mL) of blood per kilogram (kg) of body mass.…

A: The amount of blood per kilogram (kg) of body mass is = 77.0 mL The body mass of the person is =…

Q: Division - express all answers in the correct significant figures - be sure to include units 2…

A: Significant figures are those digits which are absolutely necessary while indicating the quantity of…

Q: A student sets up the following equation to convert a measurement. (The ? stands for a number the…

A: we need to convert from ml to dl  i.e. millilitre to decilitre

Q: Evaluate to the appropriate number of significant figures and express in scientific notation: (4.791…

A: Given:

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 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: How many significant figures are in the number 9.540x10*7?

A: Significant figures in 9.540*10^-7  = 4(four significant figures are there) . 0.00000009540 =…

Q: How many pm are there in  4.60x10 m? Enter the appropriate exponent as a number and not a word.

A:

Q: converting 64400 to scientific notation with 3 significant figures

A: Converting a number to its scientific notationHere we have to convert 64400 to its scientific…

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: Two undefined numbers expressed in regular notationare s hown below, along with the number of places…

A: Scientific Notation: In science when the number is too large or too small to perform any…

Q: Division - express all answers in the correct significant figures - be sure to include units 653.987…

A: The question is about division .

Q: A student sets up the following equation to convert a measurement. (The ? stands for a number the…

A: Since, we know that ;  1 kg = 103 g  1 m = 102 cm

Q: How many significant figures does the number 5.0000 have

A: Significant figures can be defined as the number of required digits to show the required level of…

Q: A student sets up the following equation to convert a measurement. (The ? stands for a number the…

A: Unit conversions involve conversion of a unit of a physical quantity into another unit of same…

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: 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: Water hardness is expressed as parts per million calcium carbonate. If there are 850 ppm of calcium…

A: 1 ppm = 1 mg/mL ; ( 1mg of solute is present in 1 mL of solution) If water is the solvent then: 1…

Q: After carrying out the following operations, how many significant figures are appropriate to show in…

A: We have to predict the number of Sig figs in result.

Q: How many significant figures are in the number 0.0032?

A:

Q: When you see this number: 4 000 --- or four thousand, how do we mathematically and scientifically…

A: Significant figures or numbers are defined as the number of meaningful digits in a measured…

Q: A solution containing an unknown chemical has a density of 5.71 kg/L, what is the mass (in pounds)…

A:

Q: how many significant figures should my answer have when I do the problem 35.0 mL/ 80.0 mL *100%?…

A: In the case of multiplication or division, the answer contains an equal number of significant…

Q: How many miles in 1.2 x 104 yards? Along with the conversions from your equation sheet, you will…

A: Number of miles in 1.2 x 104 yards =? 3 ft = 1 yard We know that, 1 yard = 0.000568182 mile

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

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

Q: Perform the calculation shown. What is the answer rounded to the correct number of significant…

A: The division operation to be solved is: 3.336*108 g1.1*10-1 mL We have to solve the above operation…

Q: How many significant figures are there in 0.003840? ( give a numerical answer)

A: Introduction- Significant figures are the digits that have meaning and are non-zero integers. To…

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.