How many oxygen atoms are in each chemical formula? (a) H3PO4                                  (b) Na2HPO4(c) Ca(HCO3)2                            (d) Ba(C2H3O2)2 How many hydrogen atoms are in each of the formulas ?

Q: Why is the atomic weight of carbon reported as 12.011 in the table of elements and the periodic…

A: Mass of carbon is 12 amu

Q: How many atoms are there in formula AL2O3? (aluminum oxide

A: SOLUTION:Step 1: In the given Formula Al2O3 (aluminum oxide), there are two aluminum atoms and 3…

Q: An ionic compound forms when calcium (Z = 20) reacts with iodine (Z = 53). If a sample of the…

A: The given data contains, number of calcium ions = 7.4×10-1

Q: Which of the following are poor conductors of heat and electricity? O Transition elements O Halogens…

A: Elements can be classified into 3 forms, that is metals, non-metals, and metalloids. Metals are the…

Q: How many Atoms are there in 6CO2

A: We know that atoms are the smallest unit of matter.

Q: The chemical formula for calcium bicarbonate is: Ca(HCO,), Са How many carbon atoms are in each…

A:

Q: Which of the following compounds are likely to be ionic? Which are likely to be molecular? SiCl4,…

A: Ionic compounds are formed by the bonding of two oppositely charged ions. This type of bond is…

Q: Verify that the atomic weight of lithium is 6.94, given the following information: 6 Li, mass =…

A: Given,  Percent abundance of 6Li = 7.50% Mass of 6Li = 6.015121 amu Percent abundance of 7Li =…

Q: A sample of Fe(H2PO4)3 that contains 12 000 oxygen atoms must also contain how many phosphorus…

A: Given Number of oxygen atoms = 12000 To find number of phosphorus atoms

Q: Calculate the molecular mass or formula mass (in amu)of each of the following substances: (a) CH4,…

A: Since you have posted question with multiple subparts, we will solve first three subparts for you.…

Q: Write the chemical formula for a compound containing the following elements: arsenic and oxygen; 4:6…

A:

Q: 2C,H6 How many atoms each element are in the formula shown? c= H=

A: • Given Molecule:-   2C2H6How many atoms each element are in the formula shown:-   C = 4, H = 12

Q: How many protons are in 60Co2+ ?

A: Given  Symbol of element =  60Co2+ Number of proton  = ?

Q: Complete the following table. Put the full symbol, e.g. 37^Cl- symbol 605^W^8+ 37^Cl-   protons…

A: To complete the table, symbol 605W8+ 37Cl-   protons     5 neutrons     5 electrons      5…

Q: How many of each type of atom are there in the formula Ca3(PO4)2?

A: Ionic compounds get generated when various atoms combined in definite ratios. This ratio remains…

Q: Vitamin E has the chemical formula C29H50O2. How many hydrogen atoms are in one molecule of vitamin…

A: The chemical formula of Vitamin E is given as C29H50O2.

Q: How many atoms of hydrogen are found in 3.92 mol of hexane, C6H14?

A:

Q: Glycine, one of the essential amino acids, has two carbon atoms, five hydrogen atoms, twO oxygen…

A: From given  Gylcine has 2 carbons (C2), five hydrogen (H5) 1 Nitrogen (N) and 2 Oxygens (O2) atoms.

Q: How many grams of K2C2O4, potassium oxalate, would containe 182 grams of pure potassium?

A: The molar mass of potassium oxalate can be calculated as:

Q: (a) What is the mass in amu of a carbon-12 atom? (b) Why is the atomic weight of carbon reported as…

A: Carbon is an element having atomic number 6. It belongs to 14th group and 2nd period. The valency of…

Q: How many atoms of sulfur are in this molecule? Fe,(SO,), 4/3 O 1 O 2 O 3 O 4

A: Given molecules,     Fe2(SO4)3  and 4H2O

Q: The water found on Earth is almost entirely made up of the 'H and 160 isotopes for a formula of H2O…

A: The element which contains the same number of protons and different number of neutron is known as…

Q: How many carbon atoms are there in CH3(CH2)12CH3?

A:

Q: In the compound Fe3(PO4)2, the subscripts indicate: O the charge on Fe is +3, on O is -4, on PO4 is…

A: Molecular Formula Fe3 (PO4 )2  So, it means there are 3 Fe atom and two phosphate(PO4 3- ) ion in…

Q: How many atoms are there of each element in the compound Fe(NO3)3?

A: Given:  Compound Fe(NO3)3. To calculate : Number of atoms of each element that are  Fe, N and O.…

Q: 3. What type of substances are magnesium chloride, sodium chloride, and calcium chloride?

A: The question is based on the concept of chemical bonding. we have to identify the nature of…

Q: If a sample of a difference compound decomposes into 0.429g of carbon and 0.57g of oxygen,what is…

A: The mass of carbon and oxygen are given as 0.429 g and 0.57 g. The ratio of mass of Oxygen and…

Q: Which of the following compounds is a nonelectrolyte? Select one: O a. acetic acid, CH3COOH b.…

A: A nonelectrolyte is a substance that will not form ions when dissolved in water and therefore the…

Q: Give the number of atoms of the specified element in aformula unit of each of the following…

A:

Q: Iron ii nitrate formula fe(no3)2 . what is ratio ot iron atoms to oxygen atoms?

A: The formula of Iron (II) Nitrate is Fe(NO3)2

Q: The chemical formula for calcium bicarbonate is: Ca(HCO,), How many carbon atoms are in each formula…

A: Chemical formula represents each compound with a symbol for each element present in it followed by a…

Q: Identify as true (T) or false (F): | Minerals separating from flowing water as stony deposits…

A: Since you have posted questions with multiple sub-parts, we are entitled to answer the first 3 only.…

Q: How many atoms of hydrogen are there in 1 kg of methane (CH4)?

A:

Q: Calculate the exact masses of the ions C5H8O1 and C6H12 1, both of which have a nominal mass of 84.…

A: The organic compounds can be identified by various characterisation techniques. For example, NMR,…

Q: Determine the empirical formulas for the following compounds:(a) caffeine, C8H10N4O2(b) fructose,…

A: The empirical formula for the given compounds has to be given.

Q: How many atoms of hydrogen are found in 7.12 mol of pentane, C5H12?

A:

Q: Which of the following are ionic, and which are molecular?(a) PF5, (b) NaI, (c) SCl2, (d) Ca1NO322,…

A: The compounds which are formed by its respective cations and anions  through electrostatic…

Q: For what type of compound are we unable to write a molecu-lar formula?

A: The representation of actual number of atoms found in a molecule of a substance are referred as…

Q: B. Write the empirical formulas of the following compounds: 1. C₂N2 2. Na₂S₂04 3. K₂Cr207 4. C6H6

A:

Q: An element, X. forms a compound with Carbon for which the formula is XC₂. If 37.48% of the compound…

A: An element, X. forms a compound with Carbon for which the formula is XC₂. If 37.48% of the compound…

Q: What are the molecular (formula) masses of the following substances? (a) Hg Cl2 (calomel, used at…

A: Molecular mass of a compound is equal to the sum of the atomic masses of all its elements.

Q: toms are there in 400.5 grams of Silicon? A V-M. G a. b. 6.77 X 1027 atoms 8.58 X 1024 atoms С.…

A:

Q: 2. How many moles would there be in 500 atoms of Silver? - 3. What is the mass of exactly 230 Sodium…

A:

Q: 2. How many ions of metal are in 5 molecules of Na;PO4? How many atoms of metal?

A: Answer:- This question is answered by using the simple concept of calculation of number of atoms in…

Q: Since 1983, pennies have been made with zinc and plated with copper. Prior to 1983, pennies were…

A: Since from 1793-1837 pennies were made up of pure copper therefore, if you had a penny from 1800…

Q: How many Hydrogen atoms are there? 4H,0

A: We have given that  No. Of mole of H2O = 4  1 mole water contain 2 mole hydrogen atom and 1mole of…

Q: alculate (to the nearest 0.1 u) the formula mass of these compounds. (a) rubidium nitrate, RbNO3…

A: Following are the formula mass of the given compounds. Since it is a type of multiple questions with…

Q: Determine the empirical formulas for the following compounds:(a) acetic acid, C2H4O2(b) citric acid,…

A: The objective of the question is to calculate the empirical formula of the given compounds fro their…

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.