4. Why do you determine a mass by difference? "You use this because its typically accurate. more

Q: 50. Round each number to three significant figures.(a) 10,776.522 (b) 4.999902 * 106(c) 1.3499999995…

A: Significant numbers are the digits in a number which is important and provide reliability about the…

Q: What equals inches divided by inches, if we treat them like numbers o, why do you divide by the unit…

A: When we divide two same numbers or units, they cancel out to give 1.  When we multiply two same…

Q: 2 21. dL 0.70 L = ?

A: The "Multiplication and Division Rule" is a concept used in dimensional analysis or unit conversions…

Q: what is the literature value for the density of water to four significant figures?

A: Density is a physical quantity that can be determined with the help of the mass and volume of the…

Q: 1. What is the sum of 89.332 g and 1.1 g? a. 90.4g b. 90.432g C. 90.0g d. 90.43g

A: The significant figures of a given number are those significant digits, which express the meaning…

Q: 5. Complete the following conversions 10.68 g to mg e. 2.00 in? to cm? b. 6.8 x 10* mg to kg c. 25.0…

A: According to our policy we should solve one question ( If any subpart present then we solve  first…

Q: (1.678x10^3m^2)/(1.6267x10^2m) ...I just need help with the sig figs and units

A: (1.678 X 103 m2 ) / (1.6267 X 102 m)Calculate the above problem with correct significant and unit.

Q: Mass of picnometer + liquid, mass of liquid is 30.708g, mass of picnometer + liquid is 61.005g, what…

A:

Q: How can we use the properties of matter to identify a certain substance?

A:

Q: 17. Explain why units are important in calculations.

A: Units can act as a guide in a calculation and are ready to show if the calculation is off track.…

Q: Mass is the measure of what property of matter?

A: Properties of matter are mainly two types such as physical properties of matter and chemical…

Q: A sample of metal weighing 4.28 g is combined with oxygen; the metal oxide weighs 40.9 g. The mass…

A: Mass percentage is one way of representing the concentration of an elements or components in…

Q: Why does knowing the mass of an object not help you identify what material the object is made from?

A: Mass is not always the same for objects made from same material.

Q: Density of Unknown  Liquid, mass of picnometer + liquid is 61.005, mass  of  empty picnometer…

A:

Q: In which state of matter are the particles least tightly arranged?

A: Given, which state particles are least tight arranged-  Basically, three states of matter- Solid,…

Q: Why are intensive properties useful for identifying a substance?

A: Intensive properties and extensive properties are classified as the types of physical properties of…

Q: Calculate the mass of 65.0 cm3 of mercury.

A: Ans

Q: 3. Is object E or object F more dense? [Assume the particles are uniformly distributed throughout…

A: Density of a substance is defined as the ratio of mass and volume. Density = Mass / Volume

Q: Determine the mass (in g) of each NaCl solution that contains 1.6 g of NáCl.

A:

Q: Gold (Au) has a density of 10.046 g/cm3. What is the mass in kg of 1.89 m3 of Au? ***Be sure to show…

A: given , density of gold = 10.046 g/cm3 volume of gold = 1.89 m3

Q: How many grams of methanol should be massed on a scale if an experiment requires 5.25 mL of…

A:

Q: Which is a correct statement about methods for separating mixtures?A. Distillation results in the…

A: Separation of mixtures involves various techniques and methods used to segregate the mixtures based…

Q: The density of pure copper is 8.89 gram/centimiter cube (at 20 degree celcius). a. Calculate the…

A: Density of a substance is related to mass and volume of the substance as shown by the equation given…

Q: Let a triangle represent atoms of element A and a circle represent atoms of element B.a. Draw an…

A: A homogeneous mixture is a mixture in which the composition is uniform throughout the mixture.…

Q: Is this calculation correct? See image below. ...

A: The percentage error is to be determined given: Measured value = 20.0 mL Actual value = 20.01

Q: The mass of water in gm is always .... its volume in cm3

A: Given statement is : The mass of water in gm is always .... its volume in cm3

Q: The density of a material can be used to calculate the volume of an object if its mass is known.…

A: Given Mass of quarter = 6.25 Density = 10.5 g/ml  Unknown Volume of quarter??

Q: ii) How many significant figures are present in number 05.105? a. 3 b. 4 c. 5 d. 6

A:

Q: A student is try to calculate the density of a can . He already knows the mass but he needs to…

A: This question can be solved on the basic formula that describes the relationship between the mass…

Q: Calculate the density Mass 100g volume40 cm³ Mass 250g. Volume 56cm³ Mass 50 g. Volume 1cm³

A:

Q: 7. What kind of a compound is KN and how do you know this? Draw a representation of three units of…

A:

Q: D Question 4 Consider an object that is in the shape of a cube with a mass of 45.8 grams. If the…

A: Answer:Density of an object is the ratio of its mass and volume as shown below:Here:

Q: How many significant figures would be in the answer to the problem 1.562-1.51?

A: The 0 in a number at last which has no decimal point is not considered significant. For example, 500…

Q: anything that has gravity and occupies space. anything that has weight and occupies space. anything…

A: Mass is a fundamental property of matter. The matter is any substance that has mass and occupies…

Q: What the correct answer. Calculate the number of miles in 4.95 g of nickel. For this question you…

A:

Q: Attached question

A: Density: It is the mass of the substance present for unit volume. The SI unit for density is g/cm3.…

Q: 4. Perform the following operation and express the answer using the correct number of sig figs: 6.53…

A: A numerical problem based on significant figure calculation. A fraction involving multiplication…

Q: 3. Solve the following. Express the answers in appropriate number of significant figures. Show your…

A: Significant digit is defined as any of the digits of a number beginning with the digit that is not…

Q: A bouquet of flowers has 11.76 red roses, 7.62 pink carnations, and 25.97 white daisies in it. What…

A:

Q: The SI standard unit for mass is the gallon Newton kilogram mole

A: The SI standard unit for mass is the

Mass Spectrometry

This process is an instrumental method in which a sample is changed to fast moving positive ions by electron bombardment. The charged particles vary due to their different mass to charge ratio and are estimated with the help of this difference. It is also called mass spectroscopy.