Click to see additional instructions Write 20.05 x 101 mL in decimal form. mL OMark for Review What's This?

Q: A student calculated the density of isopropyl alcohol to be 0.688 g/mL. The accepted density for…

A: Given data: Experimental density value = 0.688 g/mL, Accepted density value = 0.786 g/mL. The…

Q: 8)200cm3→ dm3 9)3.5 x 105 ng → mg 0)8.43 x 1012 mg Gg

A:

Q: (e) (83.145 m - 83.142 m)/(4.52 sx 2.208 s) = i Units m/s^2 Hint Assis

A: Calculation can be done by use of addition/substraction,  multiplication or division to solve for…

Q: Complete the following table. kilograms 17.0 grams milligrams 57.9

A: Given, Complete the following table, Kilograms grams milligrams 17.0         57.9 Note: 1…

Q: scientific notation of 50.031

A: Scientific notation is a convenient way to express very large or very small numbers. A number which…

Q: Calculate the mass in grams of 256 mL of acetone ( density =0.791g/mL).

A:

Q: What is the numerical value of a conversion factor ?why must this be true ?

A: Numerical value of a conversion factor is answered in the next step.

Q: Describe how scientific notation makes it easier to work with very large or very small numbers

A: Scientific notation means to express a value in the multiples of 10 or an exponential notation where…

Q: Suppose that you find in a reference book that the volume of all the oceans is 1.4 x 10° km. To find…

A: Answer

Q: How many squares are in this 2 x 2 grid (Figure 1)? Note that the figure link lets you know that a…

A: Given: Figure showing 2 x2 grid

Q: 0.0225 milligrams per cubic decimeter (dm³) to micrograms per fluid ounce. Solution Map: Work:

A: Given that:  Value = 0.0225 milligram per cubic decimeter = 0.0225 mg/dm3 1 mg = 1000 microgram  1…

Q: DATA SHEET QUESTIONS FOR PART 2 1. If you had a 50-mL graduated cylinder containing 25.0 mL of…

A: volume of cylinder after adding block= 32.81 mL

Q: Express 3.78 m³ in units of cm³.

A:

Q: How you you convert 5 months to seconds?  what would the conversion equation look like for this?

A:

Q: 23.14 mg to grams

A: We have to convert 23.14 mg to grams

Q: Click to see additional instructions An irregular shaped sample of zinc has a mass of 47.3 g. This…

A:

Q: Convert 2.554 mg/mLmg/mL into pg/mLpg/mL.

A: Density is defined as the mass per unit volume. It is represented by. The relation for density is…

Q: Convert 2.0 decades to milliseconds. Use 1 year = 365.25 days. (2 sig fig applies)

A:

Q: Round 0.03982 to 3 significant figures and put in scientific notation.

A: Since we know that significant figures are the digits of a number that are meaningful in terms of…

Q: 1. 100 mg= ......... g = ... ug 201 = .. ml .... %3D 3. 2.5 kg = g= ..mg

A:

Q: Water has a known density of 0.997 g/mL at room temperature. Calculate the percent error in the…

A:

Q: Convert 5910 mg/cm³ to ng/mm3 :

A:

Q: how many seconds old are you at the moment of your 21st birthday? Note: consider 21 years to be an…

A: We have to calculate the age in seconds at 21 yrs.

Q: For the image attached Make a graph of the average mass vs year. Please label y and x axes

A: The graph to be plotted is Average Mass Versus Year.  Hence we have to take "Average Mass" on…

Q: List all pictograms that are not hazard symbols but are seen in the laboratory

A: A pictogram is a chart which uses pictures to represent data in a simple way. The list is as…

Q: 2. Direct measurement of solid density Glass Сopper Wire Solid Beads Form 0.597cm Diameter:…

A: Copper wire is looks like cylindrical shape. Therefore, Volume of copper wire = 3.14×(D/2)2(L) Where…

Q: [(2.82 × 10®) ÷ 50.882] + 154.08

A:

Q: Can a set of data be accurate but not precise? Please explain why

A: Precision can either be the number of decimal places to which you are sure, or the consistency of…

Q: 19. The density of gold (Au) near room temperature is approximately 19.32 . How many mL micrograms…

A: Density is defined as the ratio of  mass and volume.  To find density in g/mL  mass should be…

Q: How should a 10 mL graduated cylinder be read and why?

A: Graduated cylinders are widely used to measure liquids/solvents. Small graduated cylinders such as…

Q: 1. Convert 37.8 kg into mg. (Express this in scientific notation and SHOW YOUR WORK)

A: Both kg and mg are two units of weight. These are used to expressed the weight of substance.  When a…

Q: Determine the mass in grams of a liquid with volume of 163.9 mL and a density of 0.139 g/mL.

A:

Q: Please

A: We will use neutralisation concept

Q: Complete the following problems using correct significant figures. pKb = 10.35 kb = Please…

A: Kb is the base dissociation constant and pKb = -log Kb. So, pKb is used to determine the strength of…

Q: Determine the volume, in mL, of a piece of aluminum foil if it has a mass of 1.3 cg. The density of…

A:

Q: al Reading NaOH = rial Reading al reading HCI ial Reading HCI 39.47 ml 0.02 mL 0.32 mL 0.01 ml ImL…

A:

Q: Express 25.234kg in scientist notation

A: There are some rules for writing a scientific notation . Given mass = 25.234 kg

Q: b) the mass of used acetylene in pounds 0.734 0.434 0.299

A: 40 inches long and 6 inches diameter a drum contains acetylene at a initial pressure of 250 psia…

Q: Water Volume Water Volume Object Volume Without Object (mL) With Object (mL) Object (mL) Nut 20 23

A: Volume of object can be calculated as  = Water volume with object - water volume without object

Q: Convert 73.9 kg-m2/s² to g•cm²/s².

A:

Q: Aluminum has a density of 2.0 g ml calculate the mass in grams of a piece of aluminum have any…

A: Density of aluminum = 2.0 g / ml volume = 398 ml

Q: How many grams Fin 584.8 g Br2F6? Put the answer in the box in regular (non-scientific) notation.…

A:

Q: Show how you would convert 34,212 mg to grams : 1 : 10 : 34,212 : 34,212,000 : 34.212 : mg

A:

Q: how many significant figures are there in 15.00120? please provide detailed explanation. Thanks

A:

Q: 10. ( IL Y How many millimeters are in 176.0 inches? How many picograms (pg) are in 1.46 x 10³…

A: Given, 10) how many millimetres are in 176.0 inches = ? 11) how many picograms (pg) are in 1.46 ×…

Q: Round 19,320.411 to 3 significant figures. Please express in decimal form, not scientific notation.

A: The rules for the significant figure are: Numbers other than zero with a decimal point are…

Q: You have a 100.0mL graduated cylinder containing 50.0 mL of  water. You carefully place a 111-g…

A: When we add brass, volume of water increases as some volume is occupied by brass. Using this we will…

Q: A sample containing 20.30 g of metal pellets is poured into a graduated cylinder initially…

A: The density (D) of the metal is obtained as the ratio of the mass (m) to its volume (V) as follows:…

Q: What is the advantage of using scientific notation overdecimal notation?

A:

Q: 15 mg = grams

A: The given conversions can be solved as follows:

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.