QUESTION 4 How many grams of NH4NO3 (80.05 g/mol) are present in a 2.68 mol sample? O 346 g NH4NO3 O 215 g NH4NO3 0.250 g NH4NO3 O 0.375 g NH4NO3

Q: Question 2 A compound A; containing only carbon, hydrogen and oxygen is found to be 78.30% C, 13.04%…

A: Compound A; containing only carbon hydrogen and oxygen% of C = 78.30 % = 78.30 g% of H = 13.04 % =…

Q: Which sample has the greatest mass of atomic oxygen?   Question 8 options:   36.0…

A: The objective of the question is to determine which of the given samples has the greatest mass of…

Q: Name Mass Formula Mass moles Draw Calculations (T Read aloud Ba(OH)₂ + 2Na₂SO4 →BaSO+2NaOH 1200g…

A: The given chemical reaction is  Mass of Ba(OH)2 = 1200 g Molar mass of Ba(OH)2 = 171.34 g/mol Mass…

Q: What is the molar mass of hydrogen phosphate, H3PO4, given the following molar masses? MH = 1.01…

A: What is the molar mass of hydrogen phosphate, H3PO4 ?

Q: A compound contains only C, H, and O. Determine the empirical formula if a sample is found to…

A: From percentage composition , by calculating no. Of moles , furthur we can calculate empirical…

Q: The molar mass of a compound is 92g/mol. Analysis of a sample of the compound indicates that it…

A: Determination of empirical formula  The percentage composition of elements present in given compound…

Q: Name Mass Formula Mass moles Draw v Calculations T Read aloud Ba(OH)₂ + 2Na₂SO4 → BaSO+2NaOH 1200g…

A: The given chemical reaction is  Mass of Ba(OH)2 (Barium hydroxide) = 1200 g Molar mass of Ba(OH)2 =…

Q: The approximate mass of one mole of ammonium carbonate (NH4)2CO3 is O A. 96.0 g O B. 42.0 g OC.72.0…

A:

Q: How many hydrogen atoms are present in 4.5 moles of C6H6? 1.6 x 1025 H atoms 4.5 x 1023 H atoms 27 H…

A: Solution -

Q: How many molecules are in sample? 22.1 g O2

A: 1 molecular mass of gas contains 1 mole molecules for oxygen. Oxygen has 32 g molecular mass. Number…

Q: Calculate the molar mass of Ca(BO2)2·6H2O.   Answer Choices   273.87 g/mol 174.89 g/mol 143.71…

A: The individual molar mass of each element is given byCalcium 40.078g/molBoron 10.81g/molOxygen…

Q: A compound has a molar mass of 44.01 g/mol and an empirical formula of CO2. What is the molecular…

A:

Q: QUESTION 4 How many molecules of Fe2O3 are in 5.00 g of this compound (molar mass = 159.69 g/mol)? O…

A:

Q: Question 3 A 7.300 g sample of aluminum combined quantitatively with elemental selenium to form a…

A: Given Amount of Aluminum combined = 7.300 g Amount of compound = 39.35 g M (Al) = 26.98 g.mol-1 M…

Q: Calculate the number of moles of Fe in 43.6 grams of Fe.

A: Given :- mass of Fe = 43.6 g  To be calculated :- number of moles of Fe

Q: many grams of O2 are in 1.51 x 1023 molecules

A: 1 mole contains molecules equal to avagadro's number  Molar mass of O2= 32 g/mol It means 32 g O2 is…

Q: What is the amount of mol of 0 in 84.4920 g of Na₂SO3?

A: Mass of Na2SO3  given = 84.4920 gMole of Oxygen atom = ?

Q: QUESTION 22 How many grams of Sodium are in 0.250 mole of Sodium? B) 5.80 g A) 23.0 g C) 11.0 g D)…

A:

Q: Question 7 D A 4 g sample of H2 (g) is combined with a 28 g sample of CO (g), and the following…

A: From this reaction we see that 2 mol hydrogen react with 1mol CO formed 1 mol methanol Moleculer…

Q: How many grams are in 4.5 moles of sodium fluoride, NaF? 190 g NaF 0.107 g NaF O 103.50 g NaF 0.23 g…

A: A compound is formed by the combination of different elements. The molar mass of the compound is the…

Q: Sue adds 1.78 grams of sugar, C12H22O11 to her coffee every morning before work. How many moles are…

A: Number of moles of a substance is equal to the mass of substance divided by its molar mass. Write…

Q: QUESTION 18 Analysis of a hydrocarbon shows it to be 94.1% oxygen and 5.9% hydrogen. Determine the…

A: As per the guidelines we are supposed to answer the first question so solve remaining questions…

Q: QUESTION 28 How many variables that indicate the state of gas? 04 6 02 QUESTION 29 Find the shape…

A: As per the guidelines , we are supposed to answer first question , to solve remaining questions…

Q: 20. How many grams are in 1.18 x 1021 HF molecules? H = 1.008 g/mole and F=19.00 g/mole 1.01 g 0.992…

A:

Q: The number of grams of 1.38 x 1022 molecules of C12H22011 is: 0.0229 g 7.84 g 342 g 2.29 g

A: Avogadro's  number gives the number of atoms, molecules or ions in one mole of the substance and it…

Q: Question 11 What is the molar mass of (NH4)2SO4? O 132.02 g/mol O 114.11g/mol O 118.01 g/mol O…

A: Molar mass of the compound can be calculated by summing up masses of all the elements .

Q: QUESTION 28 Determine the empirical formula for a compound that is 70.79% carbon, 8.91% hydrogen,…

A:

Q: QUESTION 28 For a 8.73 g sample of ethanol (shown in the figure), what is the percent composition by…

A: Given, Chemical formula of ethanol= C2H5OH Molar mass of ethanol= 46.08 g/mol

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

A: Molar mass of P2O5 is:

Q: The analysis of a compound shows it contains 5.4 mol C, 7.2 mol H, and 1.8 mol N. What is the…

A: Step 1) Empirical formula: The empirical formula of a compound is defined as the ratio of the simple…

Q: Question 1 1 pts Calculate the number of moles of atoms present in 5.28 g of elemental zinc.…

A: Answer 1:We know that, Number of Moles=Molar MassMass​Given that:Mass of the zinc = 5.28 gWe know…

Q: How many grams of calcium sulfate, CaSO4, are in 0.3 mol? Assume MCaSO4 = 136.1406 g/mol. Question 7…

A: How many grams of calcium sulfate, CaSO4 are in 0.3 mol?

Q: + H2 Nz NH3 > Reaction A: Total Mass Total # of Moles Number of Nitrogen Atoms Number of Hydrogen…

A: REACTION A:            N2 + H2 →NH3                           Number of Nitrogen atoms…

Q: The formula for dextrose is as follows: C6H12O6. If the atomic mass of hydrogen is 1 Da, of carbon…

A: Atomic mass of hydrogen = 1 Da  Atomic mass of carbon = 12 Da Atomic mass of oxygen = 16 Da 1 dalton…

Q: The molar mass of calcium phosphate, Ca3(PO4)2 is: Group of answer choices 278.18 g/mol 215.21 g/mol…

A: Molar mass of a compound is the mass of 1 mole of the compound.It is calculated by the total mass in…

Q: Calculate the molar mass of potassium chloride, KCIO,.

A:

Q: This question has been submitted previously:  Triglycerides are used in the biochemical system to…

A: Given: Compound : C3H8O3  molar mass : 92 g/mol number of O atoms = 3 molar mass of oxygen = 16…

Q: Solve: Counting Atoms 3 H2O 4 Li2O 4 Mg(OH)3

A:

Q: cose has a molecular formula of C6H12O6. Glucose has a molar mass of 180.0 g/mol. How many moles of…

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.