The volume of a single potassium atom is 5.16×10-23 cm³. What is the volume of a potassium atom in microliters?

Q: An atom of rhodium (RhRh) has a diameter of about  2.7×10−8cm2.7×10−8cm. What is the radius of a…

A: The radius of an atom is half of its diameter. 1 Å = 10−8 cm

Q: A student is measuring a sample of sodium bicarbonate on an electronic balance that measures to the…

A: Introduction to electronic balance- An equipment used to measure material weight accurately is an…

Q: Take the mass measurement with nitrogen (28 dalton or atomic mass units per molecule) and the mass…

A:

Q: the total mass of these atoms?

A:

Q: Calculate the number of hydrogen atoms in a 70.0 g sample of ammonia (NH3). Be sure your answer has…

A: Given: Mass of NH3 is 70.0 g Molar mass of NH3  is 17 g/mol Atoms in 1 mole is 6.022×1023  To find:…

Q: What is the mass of 0.207 moles of C3H9O4? Note: Express your answer in proper significant figures.…

A: Given, moles of C8H9O4 = 0.207 mol mass of 0.207 moles of C8H9O4 = ? Note: molar mass of C8H9O4 =…

Q: In a 1.196E2 g sample of iron(III) oxide, how many grams of iron are present

A:

Q: In heavy water, each of the hydrogen atoms is replaced by a deuterium atom. If the density of…

A: Heavy water is the deuterium oxide, which is another form of water containing heavier isotope of…

Q: Liquid octane (CH₂(CH₂) CH3) will react with gaseous oxygen (0₂) to produce gaseous carbon dioxide…

A: Liquid octane will react with gaseous oxygen to give gaseous carbon dioxide and gaseous water. The…

Q: Methanol (CH3OH) is a liquid at room temperature with a density of 7.91 *10² kg/m³. In a certain…

A: Methanol has a variety of uses as a fuel, laboratory reagent, solvent, etc. In the given reaction,…

Q: An antacid tablet weighing 0.938 g contained calcium carbonate as the active ingredient, in addition…

A: We know that, according to the law of conservation of mass in a chemical reaction, the mass of the…

Q: The volume of a single barium atom is 4.29 x 10 μL cm³. What is the volume of a barium atom in…

A: We know that the relationship between cubic centimeter (cm3) and microliter(µL) is :1 cm3 = 1000 µL

Q: Be sure to answer all parts. (a) Calculate the number of oxygen molecules and the number of oxygen…

A: Given39.5 g of OxygenNo of moles

Q: The radius of a aluminum atom is 143 pm. How many aluminum atoms would have to be laid side by side…

A: Given : Radius of Aluminium atom = 143 pm And length of line to be made = 4.38 mm  Since 1 pm =…

Q: Mercury is commonly supplied in flasks containing 34.5 kg (about 76 lb) of the element, which has a…

A:

Q: As an environmental scientist, you take a sample of soil from a farm field intentionally polluted…

A: The mass of solute in gram present in 100 g solution is known as the mass percent concentration of a…

Q: The volume of a metal bar can be determined by immersing it in water in a graduated cylinder and…

A:

Q: A student reported the mass of ten glass beads as 2.507 ± 0.015 g. What should the student report as…

A:

Q: A student is trying to identify the composition of a pure metal block by determining its density.…

A: Given that: Mass of block = 30.0 g Rectangular block = 2.00 cm × 3.00 cm × 1.40 cm Density of block…

Q: Calculate the mass of scheelite CaWO4 that contains a billion ×1.0109 oxygen atoms. Be sure your…

A:

Q: What is the mass in grams of 9.35 x 1024 molecules of CO2 ? Please express in decimal form, not…

A: Given- Molecules of CO2 = 9.35 x 1024 To find - Mass of CO2 in grams

Q: A chemist weighed out 22.5 g of calcium. Calculate the number of moles of calcium she weighed out.…

A: In the realm of chemistry, precise measurements and calculations are fundamental to understanding…

Q: If the price of gold is $1,318.61 per troy ounce (1 troy ounce is exactly 31.1035 grams), what is…

A: Given   The price of gold is $1,318.61 per troy ounce. The second given price is $1,000,000. The…

Q: In the area of nano-chemistry, particles defined as nanoparticles range in size from 1-2500 nm.  1…

A:

Q: Calculate the mass of dinitrogen tetroxide (N2O4) that contains a million (1.0x10^6) oxygen atoms.Be…

A: Given values: No of atoms of N2O4 = 1.6 × 106molar mass of N2O4 = 92.011 g/mol In N2O4 there are 2…

Q: How many neon atoms are contained in (6.89x10^2) grams of neon? Use at least two decimal places for…

A: Given -> Weight of neon = 6.89 × 102 gram

Q: There are 3.76 × 1022 atoms in 1 gram of oxygen. How many atoms are there in 700 grams of oxygen?…

A: Given  Mass of Oxygen  = 1 gram  Number of atom =  3.76 × 1022 atom  Number of atom in 700 gram of…

Q: Calculate the edge length in m and the volume in L for a cubical box that will “exactly” contain…

A: Given that: Number of Argon atoms present  = 4.32 x 1023 Diameter of Argon (D)= 3.4A° = 3.4×10-10m…

Q: Earth’s surface area is 5.1 x 108 km2, its crust has an average thickness of 35 km and an average…

A: Since the volume of earth will be = surface are of earth X thickness of earth = 5.1 X 108 X 35 =…

Q: Liquid octane (CH3(CH2)6CH3) will react with gaseous oxygen (O2) to produce gaseous carbon dioxide…

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Q: When a mixture of aluminum powder and iron(III) oxide is ignited, it produces molten iron and…

A: According to law of conservation of mass, mass can neither be created nor be destroyed in any…

Q: The volume of a metal bar can be determined by immersing it in water in a graduated cylinder and…

A: Density of a substance is given by  Rearranging it becomes and density=

Q: The chemical formula for hydrogen fluoride is HF. A chemist determined by measurements that 0.0450…

A:

Q: The speed of light is 2.998x10^8 m/s. How long does it take light to travel 40.cm? Set the math up.…

A: Given that,    Speed of light, s = 2.998×108 m/s   Distance travel by light, l = 40.0 cm  Time taken…

Q: The shattered glass case at the scene of a jewelry store robbery was determined to be made of potash…

A:

Q: - 22 A copper atom has a mass of 1.06 × 10 g and a penny has a mass of 2.5 g. Use this information…

A: Number of atoms in 1 mole of copper = 6.022 × 1023 atoms  Mass of one atom of copper = 1.06 x 10-22…

Q: A chemist measures the amount of fluorine gas produced during an experiment. He finds that 3.1 g of…

A:

Q: How many cubic centimeters are in 12.60 cubic feet? (2.54 cm = 1 inch).

A: The unit conversion from feet to cm is shown below.

Mole Concept

Mole concept is a method to determine the amount of any substance that consists of some elemental particles using a grouping unit called ‘mole’. The mole concept enables one to handle the large amount of small elementary particles. The mole concept can be used in many calculations related to mole calculation, molar amount, mole ratio, and so on, which are significant in chemistry.