I 19 of Identify which of the following oxide of nitrogen will have 1.513 mol in 114.95 grams of its compound. O A NO2 O B. N2O3 O C NO O D. N20

Q: Which of the following is an empirical formula? P309 C2H6 N204 C2H5

A: C2H5 is an example of an empirical formula. It represents the relative number of atoms in the…

Q: A 71.46-gram sample of magnesium hydrogen sulfate [Mg(HSO4)2] would contain how many moles? Is it…

A: Formula used :- Number of moles(n) = given mass (g)/molar mass(g/mol)

Q: Which of the following is an empirical formula? A. N₂O4 B. N₂H6 C. N₂O5 D. CsH₂4

A: An empirical formula is the simplest representation of a chemical compound in terms of the relative…

Q: A mole of molecules (96.0281023 molecules) has a mass in grams numerically equal to the atomic mass…

A: Given, mass of CO2 = 54 g moles of CO2 = ? Note:  molar mass of CO2 = 44.01 g/mol

Q: Which of the following could only be an empirical formula? N2H4 N2O4 .N2H6. N2O5

A: Empirical formula of a compound is defined as the formula of a chemical compound in which atoms are…

Q: How many atoms of hydrogen are contained in each of the following? a) 23 molecules CH3CH2COOH b) 7.4…

A: First calculate the no. of moles using the following formulae, then no. atoms of hydrogens in the…

Q: 15. How many O atoms are in 4.25 moles of sucrose (table sugar), C11H22O11? Space for calculations:

A: Step 1:Number of moles of O  = (Number of moles of sucrose) ×      (Number of O atoms per molecule…

Q: Be sure to answer all parts. The interhalogen compound CIF3 reacts with NH3 to produce three…

A: Given, 2NH3 + 2ClF3 → 6HF + N2 + Cl2 mass of NH3 react = 29.0g mass of ClF3 react = 170.4 g mass of…

Q: A sample is found to contain 0.650 mole of a chemical substance. a. How many atoms are present if…

A:

Q: The number of moles in 37.80 g of C2H6O (molar mass = 46.1 g/mol) is?

A: Given information,       Mass of C2H6O is 37.80 g.     Molar mass of C2H6O is 46.1 g/mol.

Q: mass

A:

Q: A sample of N20 contains 1.10x1024 molecules. How many moles of N20 are present? mol Find the mass…

A: Molecules of N2O = 1.10×1024 Molar mass of N2O = 44g/mol  Avogadro number = 6.023×1023

Q: How many grams of nitrogen are in a .10g sample C8H10N4O2?

A: Step : 1            The mass of caffeine ( C8H10N4O2 ) is not clear, so we consider as two cases  :…

Q: What is the molar mass of the following compounds?     N2H4                                     b.…

A: The molar mass of a substance can be defined as the mass of that substance present in one mole. It…

Q: How many atoms are in 5.80 moles of H O 6.02 x 1023 O 1.03 x 1023 4.00 3.49 × 1024 O

A: Mole can be defines as a standard unit for measuring large quantities of very small entities such as…

Q: In N2O , 28 g N combines with 16  g O. Determine grams of O and N in NO2

A: Mole can be defined as a standard unit for measuring large quantities of very small entities such as…

Q: A sample of an unknown compound containing 3.46 g C, 0.39 g H, and 6.15 g O. Determine the empirical…

A:

Q: ow many particles are in 0.630 moles of calcium? 01.05 x 10-24 3.79 x 1022 6.3 x 1022 9.56 x 1023

A: To convert moles to the number of particles, you need to use Avogadro's number, which is a constant…

Q: A sample contains 0.687 mol H3PO3. What is the mass of H3PO3in the sample?

A: Given that, Moles of H3PO3 = 0.687 mol  Molar mass of H3PO3 = 82 g mol-1 Then,

Q: Which one of the following molecular formulas is also an empirical formula?

A:

Q: What is the molar mass of the following compounds?     N2H4…

A: Molar mass of compounds depand molar mass of atom

Q: What is the advantage of expressing mass in moles?

A: Expressing mass in moles offers several advantages in chemistry. It simplifies calculations,…

Q: Determine the mass, in grams, of 0.400 moles of Pb (1 mol of Pb has a mass of 207.2 g).

A: => Mole = Mass ÷ Molar Mass      Mass = Mole × Molar Mass

Q: 43.5 mol of P010 contains how many moles of P? mol P

A:

Q: If the student used 3.103 g of MoOs, how many moles of MoO3 were present?

A:

Q: How many atoms of nitrogen are in 56.3g N2O4? molar mass of N2O4 is 92.0g/mol

A: This question is based on mole concept. 1mole = 6.022 * 1023 particle = Molar mass = 22.4L

Q: How many moles would contain 12.0 g of P?

A: Introduction: As per the International system of units (SI), the moles is the unit of measurement…

Q: How many moles of CaCO3 are there in an antacid tablet containing 0.514  g CaCO3?  How many formula…

A:

Q: What is the formula weight of magnesium hydroxide, an ingredient found in antacid? A. 72.0 u C. 58.3…

A: The mass of one formula unit of a substance is known as formula mass. The formula mass of the sum of…

Q: How many total atoms are in 0.360 g0.360 g of P2O5?

A: Molar mass of P2O5 is:

Q: When Oxygen is bubbled through a solution of sodium polysulfide, photographic hypo is produced. If…

A: answer is option a

Q: How many moles of atoms are contained in each of the following? a.) 7.50 x 10^24 I2 Molecules b.)…

A:

Q: How many grams of CaBr2 are there in 0.31 moles of CaBr2? A 24 g B 0.002 g c 7.3 g D 62 g

A: Given moles of CaBr2 = 0.31  Molar mass of CaBr2 = 199.89 g/mole Required  formula  moles =Mass/…

Q: Which of the following represents an empirical formula? a. C3H6O3 b. N2O2 c. CH4 d. C2H2Br2 e.…

A: The simplest ratio of the elements in the chemical compound is called empirical formula.The ratio…

Q: How many moles of carbon in 70.43 grams of C6X12Y4? (Assume the molar mass of C6X12Y4 is 295.8)

A: Mole concept: The number of molecules or atoms present in the one mole of the substance is equal to…

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.