2. Express each of the following measurements in scientific notation. a. speed of light in a vacuum, 299 792 458 m/s b. number of seconds in a day, 86 400 s c. mean radius of Earth, 6378 km d. density of oxygen gas at 0°C and pressure of 101 kPa, 0.001 42 g/mL e. radius of an argon atom, 0.000 000 000 098 m Math Handbook Transparency

Q: Express each number in decimal notation (i.e., express thenumber without using scientific…

A: Since you have posted multiple sub-parts, the answer for first three sub-parts are given below.…

Q: What is 841,000 W when written in scientific notation? Pay attention to significant figures. O…

A: The number 841,000 has 3 significant figures. So, the scientific notation must also have 3…

Q: 125. An aluminum sphere has a mass of 25.8 g. Find the radius of the sphere. (The density of…

A: Given : Mass of Aluminum = 25.8 g Density of Aluminum = 2.7 g/cm3 Volume = 43πr3

Q: A student is measuring the density of a liquid and gets the following results: 0.658 g/mL, 0.656g/mL…

A: Accuracy refers to the closeness of the standard value to the actual value.  Precision refers how…

Q: Determine the number of the following:(a) square meters in 1 square kilometer(b) cubic centimeters…

A: (a) Conversion factor is a formula which defined the relation between one set of units of a…

Q: What is the correct scientific notation for 0.00541cm? Use "E" to indicate the base (x10).

A: Given, 0.00541 cm = 541/ 100000 cm = 5.41 * 10-3  cm = 5.41E-3 cm

Q: 2. A nurse measured the average heart beats of a patient and reported to the doctor in terms of time…

A: The time period of patient patient heart beats = 0.8 s  Number of heart beats formed in a minute = ?

Q: Suppose that, from measurements in a microscope, you determine that a certain layer of graphene…

A:

Q: Assume that the total volume of seawater on Earth is 1.96 ×1021 L. Also, assume that seawater…

A: Given,Volume of seawater = 1.96 ×1021 L = 1.96 ×1024 mL     (1L = 103 mL)Density of seawater = 1.03…

Q: 1) The weight of a rock is measured to be 0.075 lbs. After placing the rock in a graduated cylinder…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: Which of the following observations are qualitative and which are quantitative? a. I wear a size…

A: Quantitative data represents the amount or quantity of the material. It is a numerical value that is…

Q: 15. Which of the following measurements is most precise? O 85 kg O 85 g O 75.7 m O 1.2 mm O none of…

A: Accuracy tell us closeness between true value and experimental value. Precision is how repeatable a…

Q: A racetrack measures 1.0000 x 103 meters. A racecar completes a lap of this track in 20.4 seconds.…

A: Given: Distance = 1.0000×103 meters Time = 20.4 seconds

Q: 55R) The density of lead is 11.4 g/cm3. The mass of a lead ball with a radius of 0.50 mm is g. 4nr.…

A: Using the relation  Mass = density * volume .                           We can find mass of lead…

Q: The density of gold is 19.32g/cm^3 at 20 degrees C. If 25.75g of pure gold nuggets is added to a…

A:

Q: An Aluminum foil weighs 0.500g and measures 10.00cm by 10.00cm Given destiny of Aluminum is…

A:

Q: 35. Express each number in decimal notation (i.e., express thenumber without using scientific…

A: The quantities which come across during the scientific studies are named as physical quantities.…

Q: An under-inflated volleyball is pumped full of air so that its radius increases by 10%. Ignoring the…

A: Given, An under-inflated volleyball is pumped full of air so that its radius increases by 10%.…

Q: Pheromones are compounds secreted by females of many insect species to attract mates. Typically,…

A:

Q: 5. The Handbook of Chemistry and Physics lists the density of a certain liquid to be 07988 g/mL.…

A: Fred did not get "A" in the exam

Q: Convert 43.3 ft into km Express your answer in scientific notation and sig figs.  You must show your…

A: Given, 1 ft =12 in1 in=2.54 cm1cm=10-2 m1 km=103 m

Q: A pipet delivers 7.52 gg  of water at 21 oCoC . What volume (in mL) does the pipet deliver? Use the…

A:

Q: A Gold refinery produces a gold nugget weighing 170lbs. The Density of gold is 19.32g/cm^3. A)…

A: Given- Mass of nugget 170lbs = 77110.7 g    (Since 1 lbs = 453.592 g) Density of gold = 19.32 g/cm3…

Q: In an engineering reference book, you find that thedensity of iron is 0.284 lb/in3. What is the…

A: Given density of iron in g/cm3 is 7.86112 g/cm3.

Q: 11. A student finds that the mass of a flask is 95.451 g. Her lab partner places a 10.00 mL sample…

A:

Q: Complete the table below. 20 dg =   g   cL = 2 L   Mm = 3000000 m 6000 ms =   s

A: Given that : We have to complete the table given below : 20 dg=  g cL=2 L Mm=3000000 m6000 ms=s…

Q: Calculate the mass of each of these objects. (a) How much mercury, with a density of 13.5939 g/cm3,…

A: The mass per unit volume of a substance is known as the density of the substance. The density of a…

Q: Calculate the density of a spherical metal, in with a diameter of 4.77 in and a ст- mass of 2.41…

A: Given: Diameter of spherical metal = 4.77 in Or diameter of spherical metal = 4.77 × 2.54 cm Or…

Q: 8.7 Q: What is the acceleration due to gravity at a location where a 15-kilogram mass weighs 45…

A: The answer is given as follows  C option is correct  3.00 m/s2

Q: The specific gravity of iron is 7.87, and the density of water at 4.00 ∘C∘C is 1.00 g/cm3g/cm3. You…

A: Given data, Density of water is 1,Weight of Iron is 4g.

Q: An irregularly shaped piece of metal with a mass of 47.8g is placed into a graduated cylinder…

A: Solution -

Q: A prescription for an oral liquid medication states that the dose for a patient is 0.05 mg/kg.…

A: Given: Concentration of durg = 150 mcg/0.1 mL = 0.150 mg/0.1 mL = 1.50 mg/mL…

Q: Density is a physical property of a molecule that's measured as mass per unit volume. (a) Given that…

A: 2. (a) Given that : Mass of cube of plastic (m) = 2.331 g The edge length of the cube (l) = 1.500 cm…

Q: How would you determine the density of an irregular object? O measure the mass of the object using a…

A: Density :-  The ratio of mass of an object to volume of the object is defined as its density Density…

Q: 85.  Solve these problems about lumber dimensions. (a) To describe to a European how houses are…

A:

Q: Liquid diethyl ether (C,H,0) has a density of 0.7138 g/mL at 20 °C. Find the true mass (mrue) of…

A: Given  density of liquid diethyl ether, d = 0.7138 g/mL mass weighed in air, Wair = 18.850 g air…

Q: 5. The Handbook of Chemistry and Physics lists the density of a certain liquid to be 07988 g/mL.…

A: Given:  True density value = 0.7988 g/mL Error allowed = +/- 0.500 %   Therefore, error in density…

Q: An empty container with a volume of150.0 cm3is weighed and found to have a mass of 72.5 g. The…

A: The mass of a substance present in one unit volume is known as its density. Thus, it may be written…

Q: A 76.00 pound flask of mercury costs $133.50. The density of mercury is 13.534 g/cm3. Find the…

A:

Q: + e Mn2+ E = +0.32 - - 2e → V E = -0.49 answer should be entered with 3 DIGITS; do not enter units;…

A: In electrochemical cell,  Standard cell potential is given by E°cell = E°c - E°a = -0.49 -(0.32) =…

Q: The proper scientific notation for 0.004050 is:      a. 4.05 x 10-4                b. 4.05 x 104…

A: Scientific notation: The scientific notation of a number is nothing but expressing a number in the…

Q: 5. An irregularly shaped piece of metal is placed in a graduated cylinder containing 15.0mL of…

A: We have to predict the density of metal .

Q: Find the Volume of 6.28 times 102g of a metal having a density of 8.462 g/cm3

A: Density of a substance is the ratio of its mass and volume. It is a measure of mass per unit volume.…

Q: Chemistry There are 2.55 1015 short tons of oxygen in the atmosphere (1 short ton = 2000 lb). How…

A: Oxygen in the atmosphere = 2.55 × 1015 short tons.  1short ton = 2000 Ib  1metric Ton = 1000 kg…

Q: )A piece of sodium metal is submerged in mineral oil for storage. The sodium displaces 10.7 cubic…

A: “Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: Pheromones are compounds secreted by females of many insect species to attract mates. Typically,…

A: Given that: Mass of pheromone = 1.00 ×10-8 g. It is kept in a cylindrical air space for which radius…

Q: 1. The weight of a rock is measured to be 0.074 lbs. After placing the rock in a graduated cylinder…

A: Here we have given a rock with its mass and volume.  Density = mass/volume

Q: The density of water is 1 g/c m 3 . Use your answer from Question 107 to compare the densities of…

A: Given: Density of water = 1 g/cm3            Mass of sun = 1.9891 x 1030 kg Mass of black hole = 500…

Q: a. Convert 3.5 weeks to milliseconds b.Convert 554 m/(day.kg) to cm'/(hr.g) c. Convert 920 lbm/ft'…

A: a. The conversion of weeks into milliseconds is shown below:  3.5 weeks×168 hrs1 week×60 min1 hr×60…

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.