the Irukandji jellyfish and the brazlian wandering spider are the two most venomous animals in the world. a researcher recorded the size of an irukandji jellyfish as 3.472 x 10^-5 cubic feet, the researcher also recorded the size of a brazilian wandering spider as 3.09 x 10^-3 cubic feet. what is the difference between the size of the spider and the size of the jellyfish, expressed using the significant digits?

Q: The concentration of mercury in a polluted lake is 0.33 micrograms per liter of water. What is the…

A: Given,Volume of the lake = 1.5 x 1012cm30.33 micrograms per liter of water

Q: student gently drops an object weighing 15.8 g into an open vessel that is full of ethanol. A volume…

A: The volume of ethanol displaced from the vessel is equal to the volume of the pject. Let, the volume…

Q: A chemistry student needs 25.0 mL of ethanolamine for an experiment. By consulting the CRC Handbook…

A: The objective of this question is to calculate the mass of ethanolamine that the student should…

Q: Osmium has a density of 22.6 g/cm^3. What volume (in cm^3) would be occupied by a 23.7 gram sample…

A: density(d)=M/V  Units gr/cm3 M=mass V=volume

Q: A marble ball is placed on a scale and is found to have a mass of 32.2 g. If the radius of the…

A: Given: Mass of the marble ball (m) = 32.2 g, radius of the marble ball (r) = 1.2 cm, π = 3.14…

Q: Your calculator gives you the number 1761.2868 as the volume (in cm^ 3) of a box 2.0 ft by 6.5 cm by…

A: When rounding off the result of a multiplication, the number of significant figures in the final…

Q: An electric current of 284.0 mA transports 680. µC of charge. Calculate the time this took. Be sure…

A: The current flow in unit time is known as current. The calculation of the current can be done by…

Q: If the radius of the sun is 7.001×105  km, what is the average density of the sun in units of grams…

A: Density can be calculated as: Density=MassVolume

Q: A sample of liquid rocket fuel is stored in a sphere-shaped fuel tank that has an inner diameter of…

A: Solution Light metals have high heat unharness, creating them enticing as fuels or fuel elements. As…

Q: A meteor has a volume of 9235 ft3 , what is the mass in kg of the meteor if the density is 0.92…

A:

Q: V=(4/3)(pi)(r)^3, where r=19.136. What is the answer in correct significant figures?

A: The digits having a meaning in a given number are called as significant figures.

Q: The volume of water in large scale reservoirs is often measured in units of an acre-foot, which is…

A: 1 acre-foot = 43,560 ft³ 1 US liquid gallon = 231 cubic inches 1 US liquid gallon = 3.785 liters 1…

Q: Calculate the density of the coin from your measurements, and determine how many significant figures…

A: Given :- mass of coin = 84.6419 g               Initial volume of water = 105.53 mL…

Q: Convert (3.706x10^9) feet to zulbars (Zb).  Some conversions: 5280 feet = 1 mile; 1 furlong = 10…

A:

Q: the density of mercury, the only metal to exist as a liquid at room temperature, is 13.6 g/cm^3.…

A: The density of mercury is given as 13.6 g/cm3 and it is required to convert this in pounds per cubic…

Q: A parsec is an astronomical unit of distance where 1 parsec = 3.26 light years (1 light year equals…

A: Given, 1 parsec= 3.26 light years speed of light = 186000 mi/s

Q: what mass (in g) of solid lead would displace exactly 234.6 liters of water? The density of the lead…

A: Given : density of lead = 11.4 g/cm3                                                 Volume of water…

Q: The specific gravity of iron is 7.87 in the density of water at 4.00°C is 1.00 g/cm^3. You can use…

A: Specific gravity=(density of substance) ÷ (density of water @4° C) Given : density of water @ 4°C is…

Q: a marble is placed on a scale and is found to has a mass of 22.2g.if the radius of the marble ball…

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

Q: A geo student places and irregularly shaped rock with a mass of 28.63 in a standard cylinder…

A:

Q: A chemistry student needs  10.0g  of methyl acetate for an experiment. By consulting the CRC…

A: Density is a mass per volume ratio. The average density is similar to the total volume of an object.…

Q: Perform the following calculations and express the answer with the appropriate number of significant…

A:

Q: The metric system uses prefixes to represent larger or smaller amounts based on the number ten. What…

A:

Q: The density of mercury, the only metal to exist as a liquid at room temperature, is 104g/cm^3. What…

A:

Q: The density of bromine is 3.1g/cm^3. What is the mass of 17.20cm^3 of bromine with the correct…

A:

Q: Chlorine is used to disinfect swimming pools. The accepted concentration for this purpose is 1 ppm…

A: The values are given as follows:

Q: A general chemistry student found a chunk of metal in the basement of a friend's house. To figure…

A: First we will calculate density of metal, then estimate the unknown metal by comparing density of…

Q: Calculate the mass of iron(III) oxide (Fe₂O3) that contains a million (1.0 × 106) oxygen atoms. Be…

A:

Q: You have three objects of varying shapes and sizes: Object 1 is a rectangular block of tin. Object 2…

A: Given: Volume of aluminum = 436 in3  And density of aluminum i.e. object 2 = 2.70 g/cm3.

Q: You've been asked to prepare a saline (NaCl) solution that is 80 mEq/L in sodium ions. You have…

A: In the given question we have to calculate the final volume of the saline solution after dilution.…

Q: A chemistry student needs 30.0 mL of ethanolamine for an experiment. By consulting the CRC Handbook…

A: The objective of this question is to calculate the mass of ethanolamine that the student should…

Q: Magnesium is used in alloys, in batteries, and in the manufacturing of chemicals. It is obtained…

A:

Q: A student wants to determine the density of a metal object. They weigh it and find that its mass is…

A:

Q: A chemistry student needs 65.0 mL of diethylamine for an experiment. By consulting the CRC Handbook…

A: The relation between mass and volume is given by: Density = mass / volume so, mass = density x…

Q: She measured the mass of the metal to be 197 grams. Then she dropped the metal into a measuring cup…

A:

Q: A chemistry student needs 90.0 mL of carbon tetrachloride for an experiment. By consulting the CRC…

A: Given, Note: 1 mL = 1 cm3 Volume of Carbon tetrachloride = 90.0 mL = 90.0 cm3 Density of Carbon…

Q: Calculate the mass of gold (III) chloride (Au₂Cl) that contains a million (1.000 × 106) gold atoms.…

A:

Q: What is the minimum mass of galena (PbS), a lead ore, from which 90.0 g of pure lead could be…

A: mass of lead = 90.0 gatomic mass of lead = 207.2 g/molmolar mass of PbS = 239.26 g/mol

Q: general chemistry student found a chunk of metal in the basement of a friend's house. To figure out…

A: Density = mass/volumeVolume of substance = volume of water displaced by substance

Q: A student is given the following question: "What is the mass of a gold bar that is 7.379 × 10–4 m3…

A: We know,Mass = Density x Volume

Q: if a plot of weight in g vs volume in ml for a metal gave the equation y=13.41x and R^2= 0.9981 what…

A: Density, mass and volume of a metal are related as:

Q: The average person eliminates 25.5 g of urea per day. What mass of potassium hydroxide is needed to…

A:

Q: A chemist prepares a solution of nickel(II) chloride (NiCl₂) by measuring out 2.1 × 10² μmol of…

A: Concentration - It is the amount of solute present in per unit volume of solution  Concentration =…

Q: A Part A Planet X rotates in the same manner as the earth, around an axis through its north and…

A: Step 1:Weight of the astronaut is 943NWeight of the earth at north pole on the planet X is…

Q: An iceberg has a volume of 8365 ft^3 What is the mass in kilograms of the iceberg? The density of…

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

Q: The speed of light is 2.998 × 108 m/s. How long does it take light to travel 100. cm? Set the math…

A: The speed of light= 2.998 × 108 m/s distance travelled= 100. cmTime =?

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.