Calculate empirical and molecular formulas Classify substances as atomic elements, molecular elements, molecular compounds, or ionic compounds

Q: 1.0g of this compound has .272g of carbon and .727g of oxygen, find the formula and name for this…

A: Given, .272g of carbon and .727g of oxygen Therefore,                  C : O    (.272/12) :…

Q: Gold is a precious metal . how many atoms of gold are in a grainof gold?

A: Given,  Gold is a precious metal . how many atoms of gold are in a grain of gold = ?

Q: An oxide of chromium used in chrome plating has aformula mass of 100.0 u and contains four atoms…

A: Chromium (Cr) is the transition metal that belongs to group -6 and period-4 in the periodic table…

Q: How many oxygen atoms are in 0.68 moles of acetic acid ?

A: The number of moles of acetic acid is = 0.68 mole The number of oxygen atoms in this amount is =?

Q: 5.0g of this compound has 2.2g of Iron and 2.8g of chlorine, what is the formula

A: Given 5.0g of  compound has 2.2g of Iron and 2.8g of chlorine  Molar mass of iron = 55.845 g/mol…

Q: The mass of atom can be found in Periodical Table. If you will be given the Atomic Mass of elements…

A: The atomic mass of an atom is the sum of all protons, neutrons and electrons present in the atom.…

Q: What is the equation for for the mass percent of an element, what is it?

A:

Q: I

A: When you see the compound then this compound is formed from number of atoms they will same or…

Q: ) Al

A: Hey, since there are multiple questions posted, we will answer first question. If you want any…

Q: A 24.8 g sample of water contains how many water molecules?

A: Molar mass of water = 18 gWe have 24.8 g water no of moles of water = 24.8 g18g/mol…

Q: Determine the molecular and empirical formulas for the substance shown in the ball-and-stick model…

A:

Q: How many atoms are in 0.0015 mole of copper

A: In this question, the number of moles of copper is provided. The number of atoms present in the…

Q: Classify each compound as ionic or molecular. Ionic Molecular Answer Bank CH4 KBr SO2

A: Ionic compounds are the compounds which are made due to complete transfer of electrons between atoms…

Q: Theoretically, should the experimental mass percent water values for everyone who used the same…

A: Answer is yes  If everyone is calculating the percent mass of water in the same hydrate the answers…

Q: ▼ Part A Provide an acceptable name for the compound shown below. CI Br Br Spell out the full name…

A: The important rules for the IUPAC nomenclature of organic compounds:-Select the parent chain with…

Q: An Acid is a measure of the quantity of

A: Here the question not properly mentioned what to describe ,so i describe here the  acids, please…

Q: Select all the statements that are TRUE regarding Molecular Formula. SELECT ALL THAT APPLY. A.…

A: Formula weight is the total mass of all atoms present in the formula of the Molecule or compound ,it…

Q: The total number of atoms in NaCI

A: The number of atom of an element in its molecules is known as atomicity. SodiumChloride or NaCl is…

Q: what is the total number of atoms in 263 gram sample of Copper?

A: n=mass/molar mass n=number of moles 1 mole cu contains =6.023 ×1023 atoms

Q: What is the gram formula mass of glucose

A: Glucose having Chemical formula : C6H12O6  Mass of C = 12 g /mol Mass of H = 1.0 g/mol Mass of…

Q: Complete the following table: Cation Formula Anion Formula Compound Formula A3+ OH Na+ CH3COO" Mg²+…

A: Ionic compounds are formed by the transfer of electrons. The cation donates the electrons and the…

Q: determine the number of atoms of 47.56g of Pa

A:

Q: Question 1. Question 2. Please no cursive handwriting, I need to be able to read your response

A: 1) The compound given is MnF2. The compound is having metal Mn and non metal F. Hence the ions will…

Q: A compound is found to contain 43.64 % phosphorus and 56.36 % oxygen by weight. What is the…

A:

Q: Write formula units by combining the following cations and anions. Enter your answer in the answer…

A: A compound is formed by the electrostatic interaction between the cation and the anion. The cation…

Q: States the application of AVOGADRO’S NUMBER and AVOGADRO’S HYPOTHESIS

A: Applying concept of avogadro number and avogadro hypothesis.

Q: What is the formula mass of gold(I) phosphate?     Include the unit in your answer.

A: Multiply subscript of every element in formula by its atomic weight (relative atomic mass) as…

Q: 24. Explain When do you use parentheses in writing a chemical formula?

A: The answer is explained below.

Q: What is the mass of 0.25 mol of water?

A: Mass of water = moles of water x molar mass of water                         = 0.25 mol x 18 g/mol…

Q: 3. Complete the following equation and explain in words how you obtained your answer. 14c -> + °e n…

A: We need to complete the equation in such a way that the sum of atomic numbers and mass numbers on…

Q: None

A: Step 1: The number of formula units of the given compound, FeCl3, can be determined by multiplying…

Q: If you were to find the molecular formula of a compound, you would need the ________ of the…

A: We have to find the possible terms for the blank. If you were to find the molecular formula of a…

Q: 2.6 mol lithium bromide to total number of ions

A: We know that 1 mol of any substance contains Avogadro's number of substances. We can determine…

Q: When would you avogrado’s number?

A: Given: Avogadro's number.

Q: What is the average atomic mass of chlorine in this sample?

A: Answer:

Q: Determine the mass percent STRONTIUM in SrNO3) Be sure to 'shouw a formula. Show Molar Mass…

A: Mass percent is the ratio of mass of that element to that of the molar mass of molecule.

Q: 10g of this compound has 6.1g of tin and 3.9g of fluorine, find the formula and name for this…

A:

Q: One of the negative effects of high carbon dioxide content in the atmosphere is its reaction with…

A: There are many negative effects of carbon dioxide on the atomsphere as well as on the human health.…

Q: Give the name, empirical formula, and molecular mass ofthe molecule depicted in Figure

A: In the given figure the violet color represents Phosphorous atoms and the red color represents…

Q: TNT as shown in figure is used as an explosive in con-struction. Calculate the mass of each element…

A: The molecular formula for TNT is C7H5N3O6 . Given mass of TNT = 1 lb = 453.592 gms Molar mass of TNT…

Q: How many species in Ammonium Chloride?

A: Formula of Ammonium chloride  is NH4Cl