2. What is the true percentage of water in BaCl, 2H 0? 18. 3. Write a balanced equation for the dehydration of MgSO, 4. Why is BaCl, 2H, O not written as BaCl,H 02? 5. A 1.547 g sample of CuSO, xH,O is heated to drive of 4 anhydrous CuSO,. What is the value of x for this hy 4

Q: determine the composition of  the following compounds: MgCl2,SiO2,(NH4)2S?

A:

Q: 8.) Considering the equation 2 NaI (ao) + Cl₂(g) → 1₂ (s) + 2 NOCI (aa) How many grams of Sodium be…

A: 2 NaI (aq) + Cl2(g) ==> I2(s) + 2NaCl (aq)  Given Mass of Iodine = 49.5 g  Molar mass of Iodine =…

Q: How many grams of oxygen is in 9.10 x 1020 molecules of N2O5?

A: Number of molecules of N2O5 = 9.10 × 1020 molecules. Mass of oxygen = ?

Q: CaI2+2AgNO3⟶2AgI+Ca(NO3)2 how many moles of silver iodide will be produced from 217 g217 g of…

A: Reaction is given below. CaI2+2 AgNO3⟶ 2 AgI + Ca(NO3)2

Q: How many grams of Silicon Dioxide would be needed to produce 2.664 kg of Calcium Sulfate?…

A: The given balanced equation for the reaction is : 2CaF2 + 2H2SO4 + SiO2  ⟶  2CaSO4  +  SiF4  +  2H2O…

Q: If 6.750 grams of lithium carbonate was used in the reaction, how many grams of carbon dioxide would…

A: The equation for the decomposition of lithium carbonate is as follows. Li2CO3 → Li2O + CO2 This is a…

Q: What is the theoretical yield of MgO from the combustion of 5.25 x 10^23 atoms of Mg and 4.69 x…

A:

Q: How many moles of oxygen atoms are there in (6.58x10^2) grams of P4O6

A: Molar mass of P4O6= 219.88g/molGiven mass of P4O6 = 6.58×102 gNumber of moles of P4O6= given…

Q: What is the mass percent O in Cuz(PO4)2?

A: The compound given is Cu3(PO4)2. In the above compound, each molecule is having  1) 3 atoms of Cu 2)…

Q: A crystal of the mineral pharmacosiderite, Fe3(AsO4)2(OH)3•5H2O, contains what percent of  oxygen by…

A: The molecular formula of the crystal pharmacosiderite is = Fe3(AsO4)2(OH)3•5H2O One molecule of the…

Q: Two chemists determined the weight of X obtainable from several samples of an organic compound,…

A: Given:  Mass of X(C6H5)3 = 5.341 gm  Mass of X2O3 = = 2.829 gm

Q: How many H atoms are there in (2.22x10^2) grams of NH3?

A: The answer to the following question is given as:

Q: Write a balanced chemical equation based on the following description: the reaction of gaseous C₅H₄…

A: The reactants given are  1) gaseous C5H4 i.e C5H4 (g) 2) Oxygen gas i.e O2 (g) And the products…

Q: When 5.384 g of one of the hydrates of sodium sulfate (Na2SO4) was heated to drive off its water of…

A:

Q: percentage by mass

A:

Q: Write the empirical formula for at least four ionic compounds that could be formed from the…

A:

Q: A sample of NaCr(SO₂)₂.10H₂O was heated in a crucible, yielding 1.27 g of the corresponding…

A: The molar mass of NaCr(SO4)2 is = 267 g/mol The molar mass of H2O is = 18.0 g The mass of NaCr(SO4)2…

Q: For the compound Ca10(PO4)6(OH)2, what is the molar mass? How many atoms of P are in 35.00 grams of…

A: For molar mass of compound, we should know molar mass of its constituents.

Q: What does n= if, 3.764 g CuSO4 · nH2O yields 1.585 g of anhydrous Cu(OH)2 after treatment with…

A:

Q: 12) How many grams of hydrogen are in 22.9 g of C6H12O6?

A: Given information,     Mass of glucose is 22.9 g. There are six moles (or 12 atoms) of hydrogen in…

Q: What mass of ammonia gas (NH3) contains 2.8*10^24 hydrogen atoms?

A:

Q: What is the molar mass of Pb(NO3)4 ?

A: Molar mass is the mass of all atoms present in a given compound. Molecular mass is also defined as…

Q: How many grams of manganese(II) hydroxide contain 2.80 grams of Mn2+?

A: The formula for manganese hydroxide is Mn(OH)2  The molar mass of Mn = 54.93g/mol The molar mass of…

Q: If the decomposition of a sample of KClO3 produces 3.29 g of  O2, what was the mass (g) of the…

A: Write balanced equation

Q: How many grams of cobalt(III) phosphate contain 3.98 grams of Co3+?

A: Given: Mass of Co3+ = 3.98g Molar mass of Co = 59g/mol Molar mass of cobalt(III) phosphate,…

Q: what is the molar mass of Ca3(PO4)2?

A: The molar mass of the compound can be calculated by the addition of the atomic mass of constituent…

Q: When 6.313 g of one of the hydrates of sodium sulfate (Na2SO4) was heated to drive off its water of…

A: Mass of hydrate sodium sulphate = 6.313 g  Mass of anhydrous sodium sulfate = 5.036 g

Q: How many total Cl atoms are in 5.00 g FeCl3?

A: Given that : The mass of FeCl3 = 5.00 g The molar mass of FeCl3 is 162.2 g/mol.

Q: Suppose the reaction Ca 3(PO 4) 2 + 3H 2SO 4 → 3CaSO 4 + 2H 3PO 4 is carried out starting with 149 g…

A:

Q: If the furnace initially contained 22.322.3 kg of solid calcium oxide and 10.510.5 kg…

A: Given: Mass of CaO = 22.3 kg Mass of P4O10 = 10.5 kg  To find: mass of calcium phosphate in kg…

Q: W

A: A mole can be defined as a unit for the amount of substance. Formula for number of moles:

Q: Write the empirical formula for at least four ionic compounds that could be formed from the…

A: Write 4 ionic compound by using the given ions--

Q: 2. What is the mass (in grams) of 7.11 X 102 molecules of tetraphosphorous trisulfide?

A: Given, number of molecules = 7.11×1022 Avogadro's constant = 6.022×1023 molecules.mole-1

Q: What is the molar mass of CuSO4 • 5 H2O?

A: We have to calculate the molar mass of CuSO4 • 5 H2O

Q: Name each ionic compound: (a) NaHCO 3, the active ingredient in baking soda; (b) Al 2(SO 4) 3, an…

A: While naming an ionic compound, first name the cation followed by anion.

Q: Calamine is a naturally occurring zinc silicate that contains the equivalent of 67.5% zinc oxide,…

A: Using mole concept we can easily determine how much reactants  is used or composition of elements in…

Q: KC1O3 (s) +P.(s)P0,(s) + KCl(s) (unbalanced)

A:

Q: What is the molecular weight of Mg (PO4)2

A: Molecular weight determination:By adding the mass number of each atoms present in the given formula…

Q: How many H atoms are there in (3.80x10^2) grams of H2O?

A: Number of moles = Mass/Molar mass Number of atoms in 1 mole = 6.0224 x 1023 Molar mass of water =…

Q: What is the mass percentage of Na in Na2SO3?

A: To calculate the mass percent of an element in a compound, we divide the mass of the element in 1…

Q: Starting with the following equation, Fe2O3(s) + C(s) --> Fe(l) + CO2(g) calculate the mass in…

A:

Q: If the chemical reaction in question #3 only had a 75% yield, then how many grams of nitrogen gas…

A: Hydrogen gas reacts with nitrogen gas to form ammonia. The equation for the balanced chemical…

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.