Assuming that the shape of atoms is spherical, what is the diameter (in angstroms) of an atom that has a volume of 1.3 x 1023 cm2? Note: Don't use significant figures in this question. Select one: OA. 3.475 OB. 1.737 OC. 1.091 OD. 1.459 OE 2.917

Q: The density of carbon tetrachloride is 1.59 g/mL. How many chlorine atoms are present in 55 mL of…

A:

Q: If 2 moles of water decomposes, the products that will form are 2 moles of hydrogen gas and one mole…

A: Given, Moles of water decomposed = 2 moles.

Q: 6. Another student created a model for the following balanced equation as shown below. The student's…

A: In a balanced chemical reaction number of each atom is same in reactant side with that of the…

Q: The diameter of a zirconium atom is 3.10 Å3.10 Å. Express the radius of a zirconium atom in both…

A: Given The diameter of a zirconium atom is 3.10 Å

Q: Suppose you are given 2.50x 104 pg of aluminum sulfate, Al(SO4)ls (s) (density = 2.672 g/cm³) a. How…

A: a) In the first problem we need to find out the number of oxygen atoms present in the given sample.…

Q: A 1/20 inch thick lead sheet is used for protection from medical X-rays. If a single lead atom has a…

A: To find out how many lead atoms thick the sheet is, we need to convert the thickness of the lead…

Q: Bismuth has a density of 9.808 g/cm3 at 25 degrees Celsius. Calculate the number of atoms of Bismuth…

A: To calculate number of atoms, we first need to calculate number of moles as follows,

Q: The radius of a platinum atom is 139 pm. How many platinum atoms would have to be laid side by side…

A:

Q: A sample of mercury(I) nitride weighs 3.33 dg.  How many nitrogen atoms are in this sample?The…

A:

Q: Two samples of calcium fluoride are decomposed into their constituent elements. The first sample…

A: The first sample produced, mass of calcium =0.154 g Mass of fluorine = 0.146 g Second sample…

Q: Consider these compounds: A. Zn3(PO4)2 B. Ag₂CO3 C. Ca3(PO4)2 D. Ag₂SO4 Complete the following…

A: The question is based on the concept of solubility product principle. It states that when a weak…

Q: A scientist has two samples of gas: The first sample contains one mole of argon atoms and has a mass…

A: 1 mole of any gas has equal no. Of atoms i.e., avogadro no. of atoms 6.023*1023 atoms. Or Equal…

Q: In a laboratory, a 16.1 g of solid aluminum reacts with oxygen gas to produce 37.5 g of Al2O3. After…

A: First balance  the chemical equation All step given in Handwritten  solution.

Q: An alloy contains 10.8 % titanium by mass and has a density of 13.98 g/cm3. Titanium-49 has an…

A: Number of atoms = 8,926,980,280,926,177,000,000 atoms. Avogadro’s constant = 6.023 × 1023 atoms.…

Q: There are 1.699 x 1022 atoms in 1.000 g of chlorine.  Assume that chlorine atoms are spheres of…

A: Number of atoms in 1 g chlorine = 1.699 × 1022 atoms Number of atoms in 0.5 g chlorine = 0.5 × 1.699…

Q: A 4.450 g sample of hydrated lithium iodide, LiI·xH2O, is dried in an oven. When the anhydrous salt…

A: The water of crystallization is having a fixed number of water molecules present in one formula unit…

Q: The atomic mass of chlorine on a three-decimal-place periodic table is 35.453 u. Cl has two natural…

A:

Q: There are two gas compounds that are made out of element  A and B. This is the mass percentage of…

A: Given: Mass percentage: Compound 1: 30.43% A, 69.57% B Compound 2: 63.64% A, 36.36% B

Q: POSSIBLE POINTS: 3 Imagine you start with an atom that has 7 protons, 7 neutrons, and 7 electrons.…

A: The element containing 7-electrons, 7 protons, and 7 neutrons is nitrogen(atomic number-7)

Q: The density of aluminum is 2.70g/cm^3. For a block of 275g of aluminum calculate the density in…

A: The volume of aluminium and the number of aluminium atoms present in 275 g aluminium is needed to…

Q: Consider these compounds: A. Ca3(PO4)2 В. Ваз (РОд)2 C. Cuco3 D. PbSo4 Complete the following…

A: A question based on solution that is to be accomplished.

Q: A sample of a gaseous binary compound of boron and chlorine weighing 2.842 g occupies 0.153 L. This…

A: The number of atoms of boron and the number of atoms of chlorine in a molecule of this compound has…

Q: A meteorite found in central Indiana contains traces of the noble gas neon picked up from the solar…

A: The average mass of an element can be defined as the sum of each individual isotope's mass…

Q: Chemistry An element consists of 4.35% of an isotope with mass 49.946 u, 83.79% of an isotope with…

A: calculate the average atomic mass- firstly multiply the fraction by the mass number for each…

Q: A 5.05 g sample of quartz (SiO2) contains 2.36 g of silicon. What are the percentages of silicon and…

A: The mass of sample of quartz is 5.05 g. The mass of silicon in quartz is 2.36 g.

Q: 10. Copper has two naturally occurring isotopes, 6Cu (isotopic mass = 62.9296 amu) and 6Cu (isotopic…

A: Atoms of the same element having same atomic number but different mass number are called as…

Q: A balanced chemical equation contains the term "2Ba(OH)2-8H₂O", which is used as a lubricating…

A: Given: The coefficient of  is 2.

Q: A student measured a 6.790 g sample of a hydrated salt. After heating, the mass of anhydrous salt…

A: a) Given that weight of hydrated salt is 6.790 g and mass of anhydrous salt is found to be 4.501 g.…

Q: 6. This Magnesium top by ForeverspinTM weighs merely 6g. a) Write the weight of this top in…

A: The question is based on mole concept. We have to determine number of particles present in 6 gram of…

Q: How many grams would 4.904 x 10^22 atoms of Lithium weigh? Show all work and report your answer to…

A: Given atoms of lithium is 4.904 × 10^22 * first we have to convert atoms of lithium into…

Q: 5. A student created a model for the following balanced equation as shown below. What color or…

A: Answer :- White color circle (shaded with black lines)  In student's model, element Sulfur is…

Q: In Alice's Wonderland, every element is different from those in our world. There is a pure unknown…

A: to find out, the empirical and molecular formula, first we need to moles of each element present in…

Q: Variations in average atomic mass may be observed for elements obtained from different sources.…

A:

Q: Using the balanced equation from Question #8, how many grams of lead will be produced if 2.54 grams…

A:

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.