A micro-syringe holds a volume of 1.3 μL. To the proper number of significant figures, what is the volume of this syringe in pL?

Q: Use significant figures to express the inherent uncertainty in measured quantities and in…

A: The uncertainty in a measurement is an estimate of the amount by which the measurement result may…

Q: A large stone weighs 53.0 kg, how many pounds does it weigh?

A: Given: Mass in Kg = 53.0 Kg.

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

A:

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

A:

Q: Do the following calculation of measured masses from an experiment: 73.4 g - 61.418 g Calculate…

A: Given  73.4 gram - 61.418 gram  Resultant value in correct significant figure = ?

Q: An arctic ecologist measures the thickness of an ice floe. The thickness is 0.241 m. What is the…

A:

Q: The answer to   (315.8 g + 4.52 g)  has how many significant figures?

A: In this question, we will find out the number of significant figures in the final answer.…

Q: A piece of copper has a volume 300 L. What is the mass of the sample, in units of grams? Fill in…

A: the Red box is filled as shown below:

Q: 4. How many significant figures are present in the measurement 0.053402 mm? How many are in…

A: According to the rule of significant figure- If value is less than 1 then digit count start from…

Q: Why does 25000 only contain 2 significant figures?

A: Given that a number 25000 25000 only contains two significant figures.

Q: An atom of a particular element has a volume of 7.8 x 10-31 m3. What is this volume in cubic…

A: An atom is always neutral because of the equal number of electrons and protons. Electrons are…

Q: How many significant figures are in each of the followingmeasurements? (a) 3.549 g, (b) 2.3 * 104…

A: All non zero digits are significant in nature So 3.549 g has 4 significant figure.

Q: What is the mass in grams of a cube of gold (density = 19.32 g/cm3) if the length of the cube is…

A:

Q: An atom of a particular element has a volume of 7.8 x 10-31 m. What is this volume in cubic…

A: We know that, 1 nm= 10-9 m then,

Q: To identify the substance, a chemist determined its density. By pouring a sample of the liquid into…

A: Generally, the density for a substance is determined by dividing the substance mass with the volume.

Q: An optician measures the diameter of her patient's pupil. The diameter is 0.0023 m. What is the…

A: We have to predict the diameter in mm .

Q: 3.32 x 10- g to micrograms Express your answer to three significant figures and include the…

A: Given : Value in grams = 3.32 X 10-5 g

Q: Round each number to two significant figures  233.356       0.002353.   can you please…

A: Interpretation : We have to count number of significant figures.

Q: A student measures 49.2 mL of concentrated nitric acid, which has a density of 1.53 g/mL. Part A…

A: Density ( d ) :- Density is defined as the ratio of mass and volume of solution. Density(d) = mass…

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: What is the volume of an object that displaces water in a graduated cylinder from 10.8 mL to 14.7…

A: Given:The initial volume level of water = 10.8 mLThe final volume level of water = 14.7 mLWe need…

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: An atom of a particular element has a volume of 7.8 × 10⁻³¹ m³ . What is this volume in…

A: Given,Volume = 7.8 × 10-31 m3We can convert m3 to cubic nanometer (nm3) by using conversion factor…

Q: 1. Calculate the area of a circle with a radius of 10.0 m. Express your answer in square centimeters…

A:

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

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: A student estimated that the volume of a crucible was 28.6 mL.  When the volume was accurately…

A: Percent error can be calculated using the following formula.

Q: Jose Altuve is a baseball player for the Houston Astros. An Altuve (unit) is equivalent to his…

A: Given:1 Altuve = 1.65 mConversion from m3 to cubic Altuve:

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

A:

Q: How many picograms are there in 3290 kg?

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: a cube of ice has mass= 0.0051 lb , determine the volume of this cube in mL if the density of ice is…

A: Given,  Mass of a cube of ice = 0.0051 lb.  The density of ice = 0.920 g/cm3  The volume of ice cube…

Q: An atom of a particular element has a volume of 7.8 x 10-" m . What is this volume in cubic…

A: Given: The volume of atom = 7.8 x 10-31 m3  This value of volume has to be converted into cubic…

Q: A solid occupies a volume of 0.0103 cm3 and has a mass of 16.8 mg. To the proper number of…

A: The density of a substance is calculated as shown below: Density=massvolume and its unit is g/cm3…

Q: How many micrograms are there in (5.41x10^4) picograms?

A:

Q: When subtracting 61.45 g from 242.6 g, which value determines the number of significant figures in…

A: Significant figures are the value of a number of digits that add accuracy to the value. There are…

Q: A pharmacist measures the mass of a powdered drug. The mass is  681mg. What is the mass in grams?…

A: We have given that  The mass  of a powdered drug  = 681mg.  mass  of a powdered drug in grams = ?

Q: How many picograms are there in one gram? Enter your answer in scientific notation. For example,…

A: Given Find out 1g =       pg

Q: At room temperature the element bromine, Br2, is a liquid with a density of 3.12g/cm3 . Calculate…

A: Density is defined as the mass of the substance per unit volume. Bromine is a liquid at room…

Q: How would you write 3800000 to only 4 significant figures? О а. 3.800 х 106 O b.3.8 x 106 O c. 3.80…

A:

Q: Do the following calculation of measured masses from an experiment: 5.656 g + 168.435 g + 75.657 g…

A: Ans  5.656 g + 168.435 g + 75.657 g = 200.404 Value will be till six significant value

Q: (2.241 mm )(2.8 mm ) Complete the operation and express the answer with the appropriate number of…

A: The operation expressed and the appropriate number of significant figures:Unit same for both values…

Q: How many significant figures are present in the number 10.450?

A: The total number of digits in a number including the last digit whose value is uncertain is known as…

Q: How many cm3 are there in (6.67x10^0) gallons

A:

Q: Perform the following calculation. How many significant figures should your answer be reported to?…

A: The expression given is,

Q: An atom of a particular element has a volume of 7.8 x 10-31 m. What is this volume in cubic…

A: 1 m = 109 nm 1 m3 = (109)3 nm3 = 1027 nm3

Q: An atom of a particular element has a volume of 7.8 x 10¯31 m3 What is this volume in cubic…

A: The volume of the element is = 7.8×10-31 m3 This volume can be converted into a cubic nanometer by…

Q: If a tiny marble had a radius of 0.25 mm, how many marbles can be lined up across the circumference…

A: Given: Radius = 0.25 mm Circumference of earth distance = 24900 miles

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.