2. Determine the formula for the hydrate from the given information: b. 76.9 % CaSO3, 23.1 % H20

Q: a sample of ammonia (NH3) Liberates 5.59 KJOF heat as it solidifies at its meining point Whar is the…

A: Given : Amount of heat liberated = 5.59 KJ And the heat of fusion of ammonia = 5.66 KJ/mol.

Q: How many formula units of CaCO3 are contained in 350. g CaCO3?

A: The given data contains, mass of CaCO3 = 350 g

Q: Determine the number of moles in 6.80 × 10²³ formula units of MgCl₂

A:

Q: 1. Complete the table below: Name Formula Molar Mass (include units!) sodium sulfate C3N4 magnesium…

A: This question is related to nomenclature part of chemistry. The name of compound is written using…

Q: Calculate the number of mol corresponding to:a. 20.0 g He b. 0.040 kg Na c. 3.0 g Cl2

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

Q: Analysis of a 29.1 g sample of water revealed a mass percent for lead of 4.35%. Calculate the number…

A: Mass percent of lead is equal to the mass of lead divided by the mass of water multiplied by 100.

Q: 16. I a) How many atoms of hydrogen are present in 2.69 moles of water? b) How many moles of oxygen…

A: a) The relation between number of atoms of any substance and number of moles of a substance is…

Q: Calculate the number of molecules in 6.00 molesmoles H2SH2S.

A: • The values provided in the question are:-    i) Number of moles of H2S = 6.00 mol    • We need to…

Q: Determine the number of moles in 1.19 × 10²³ formula units of MgCl₂.

A: It is known that one mole of a substance is equal to 6.022×1023 formula units of that substance…

Q: Calculate the number of moles in a)2.25 g of KBr b) 60 mg of MgNH4PO4.

A: Calculate the number of moles in ---//

Q: Determine the number of formula units in 3.15 mol CaBr2

A:

Q: Calculate the percent by mass of water. 54. Na2CO3 · 10H2O(s)

A:

Q: 5. What is the molecular mass of CH,COONA? C. 70g/mole d. ) 82g/mole 60g/mole b. 66g/mole a.

A: As per regulations only the first question can be answered. So the answer for question 5 is being…

Q: mercury (I) iodide --> write formula no blanacing

A: Mercury(I) iodide is a chemical compound of mercury and iodine.

Q: formula units

A: Formula unit in chemistry is the empirical formula of any ionic or covalent solid network. It is the…

Q: Calculate the number of mol corresponding to:a. 15.0 g NaCl b. 15.0 g Na2SO4

A: Given, Mass is given. Formula Used, moles (n)=Given MassMolar Mass

Q: Write the formula for Plumbous Acetate  (enter all subscripts as numbers, for example Al2O3 would be…

A: Formula for plumbous acetate.

Q: How does the boiling point change as the formula mass of compound increases?

A: To solve this problem we have to know about boiling point of organic compounds.

Q: Calculate the percent by mass of water. 53. Ca(SO4)2 · 2H2O(s)

A: We are given a hydrated salt  Ca(SO4)2 · 2H2O. The total mass of the hydrated salt = 172.17 g/mol.…

Q: What is the percent (by mass) water CaSO4.2H22O?

A: Here, we have calculate % by mass of H2O in CaSO4.2H2O.

Q: sample of waterer (density is 0.998 g/mL) is measured to be 25.7mL.  How many mole of water are in…

A: Given: The density of water is 0.998 g/mL. The volume of the solution is 25.7mL. The molar mass of…

Q: a) How many mols do we have in 1 liter of H2O ? (water) b)How many molecules is found in the answer…

A: The amount of substance can be expressed in grams or the number of atoms. The number of particles,…

Q: Given 11.6g of LigPO4. Calculate the following The molar mass of LigPO, in g/mol [Select] Number of…

A: Given: Mass of Li3PO4 = 11.6 g

Q: 10. What is the molar mass of diphosphorus pentaoxide? * this is incorrect 80 g/mole 284 g/mole 150…

A:

Q: How mony moles are Dresent in 250g BalOH)a:

A: Given, Mass of Ba(OH)2 = 250 g Moles of Ba(OH)2 = ? Note: Molar mass of Ba(OH)2 = (137.34 + 2×16 +…

Q: Determine the number of moles in 5.57 × 10²³ formula units of BaBr₂.

A: in one avegadro number is equal to 6.022 × 1023 formula unit.

Q: What is the percent Xenon in Xe(OH),? Show your work.

A: Data: The molar mass of Xe(OH)2= 165.307 g/mol The mass of Xe= 131.293 g To find: The percent of…

Q: Determine the number of moles in 4.99 × 10²³ formula units of BaBr₂.

A: Given :- number of formula units of BaBr2 = 4.99 × 1023 formula units  To determine :- number of…

Q: Question 40

A: The given molecules are, CaSO4, Al2(SO4)3 and K2SO4

Q: Determine the percent composition of potassium in K2Cr2O7.   Give your answer as a percentage…

A: Given Compound is K2Cr2O7

Q: What is the percent composition of sodium in 72g of Na3PO4

A: The compound given is Na3PO4

Q: Label the diagram to correctly convert 1.6 mol Fe203 to mol CaO as per the below Fe203 + Ca3 (PO4)2…

A: Given chemical reaction Fe2O3  +  Ca3(PO4)2 ------> 2 Fe(PO4) + 3 CaO The stoichiometric…

Q: How many formula units are in 9.6 mol.

A: Number of formula units = 6.0224 x 1023 x number of mols

Q: A 30.5 gram sample of glucose (C6H12O6) contains ________ mol of glucose.

A: Molar mass of Glucose i.e C6H12O6 is given by  Molar mass = Atomic mass of C X 6 + Atomic mass of H…

Q: 8) How many moles of NO will contain 7.89 × 1020 m

A: One mole of any compound contain Avagadro number of molecules. Avagadro No. (Na) = 6.022 × 1023

Q: What amout (moles) is represented in 20.0mg caffeine C8 H10 N4 O2

A: The number of moles is the ratio of given mass by molecular mass. It is represented by equation (1),…

Q: Determine the number of moles in 5.31 × 10²³ formula units of BaBr₂.

A: No of formula units of BaBr2 = 5.31 × 10e23 Number of moles = ?

Q: Calculate the percent water (by mass) in iron (II) iodide tetrahydrate, Fel2-4H2O

A: The compound given is FeI2.4H2O. Assuming 1 mole of FeI2.4H2O. Molar mass of FeI2.4H2O = Atomic mass…

Q: Answer the following problems and show complete solution 1. Phosphoric acid (H;PO,) is a colorless,…

A:

Q: What is the mass of 7.24x10 to the 23rd formula units of barium oxide?

A:

Q: Determine the number of moles in 4.50 × 10²³ formula units of CaBr₂

A: Given: Formula units of CaBr2 = 4.50 × 10²³  To determine: The number of moles in 4.50 × 10²³…

Q: Calculate the percent by mass of CC in glucose  (C6H12O6).

A: Given that : We have to determine the % mass of C in glucose(C6H12O6).

Q: number of moles in 5.50 × 10²³ formula units of MgBr₂

A: Given, 5.50 × 10²³ formula units of MgBr₂ We know, 1 mole = 6.023×1023

Q: Determine the number of moles in 3.50 × 10²³ formula units of BaCl₂

A: We have to find the number of moles present in 3.50*1023 formula units of BaCl2.

Q: Determine the formula for the hydrate from the given information: 0.391 g Li2SiF6, 0.0903 g H2O

A: Chemical formula is the notation used by the scientist to present the information about the chemical…

Q: 10. Ratio of moles of water to moles of hydrate (Show calculations.) 11. Formula of hydrate MgSO4…

A: Given data is- Mass of Crucible = 23.43 g Mass of crucible and hydrate = 29.24 g Mass of Crucible…

Q: Freon _12 (ccl2Fe) is used  as a refrigerant in air conditioners and as a proppellant in aerosol…

A: First, the given mass in mg is converted into g. 1g =1000mg 1mg = 1/1000 g Then, 7.56 mg = 0.00756g.

Q: Determine the number of moles in 1.30 × 10²³ formula units of MgCl₂.

A: Applying concept of moles and avogadro concept.

Q: 63.5 mol of P0, contains how many moles of P? moles of P: mol P Incorrect

A: