Determine the quantity (g) of pure CaCl2 in 7.5 g of CaCl2•9H2O. Show your work.

Q: 15)An unknown compound is composed of 25.24% by mass of sulfur and 74.76% by mass of fluorine. If…

A: Molar mass of compound given= 254.11 g/mol  Let mass of the compound in grams= 100g  Then  mass of…

Q: Determine the number of moles in 1.83 x 1023 formula units of BaCl2.

A:

Q: Calculate mass (in grams) of sodium in 8.5 g of each sodium-containing food additive.a. NaCl (table…

A: Since we only answer up to 3 sub-parts, we’ll answer the first 3. Please resubmit the question and…

Q: Calculate the mass (in grams) of carbon in 1.88 grams of C2F3Cl3.

A: Mass of C2F3Cl3 = 1.88 g Moles of C2F3Cl3 = 1.88 g / (187.376 g/mol) = 1.0033 × 10-2 mol Since 1…

Q: grams of Na+ (23 g/mol) are contained in 25 g of Na2S04 (142 g/mo

A: The question deals with the mole concept. Number of moles of a substance depends upon the amount of…

Q: Determine the empirical formula of a compound that has the following percent composition by mass: K…

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Q: How many grams of Pb2+ are presented in 2.65 grams of lead (II) nitrate?  How many grams of lead…

A: a) Pb2+ are presented in 2.65 grams of lead (II) nitrate = 1.66 gram b) grams of lead (II) nitrate…

Q: What would you need to do to make C14H21O14 an empirical formula?

A: To find emperical formula.

Q: What is the molar mass of N2O4? Na2SO4? C6H10O2?

A: 1. Molar mass is a quantitative method to calculate the total mass of all the atoms associated for…

Q: NaI (aq) + Cl2 (g) → I2 (s) + NaCl (aq) Given this equation calculate how much NaI is required to…

A: Consider the given information is as follows; Mass of I2 produced = 3.44 kg = 3440 g Mass of NaI…

Q: How many equivalents of PO43 are there in 6.00 mol of Mg3(PO4)2 ?

A:

Q: For each of the following samples of ionic substances, calculate the number of moles and mass of the…

A: 4.25 g of ammonium iodide 6.31 moles of ammonium sulfide. 9.71 g of barium phosphide 7.63 moles of…

Q: What is the mass (in grams) of 9.43 x 1023 molecules of sucrose (C12H22O11)? First determine the…

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

Q: What mass of water is contained in a 5.398_g sample of Na22CO3.10H2O?

A: The mass of the sample is 5.398 g.The molar mass of Na2CO3.10H2O is 286 g/mol.The mass of water in…

Q: If you used twice as much copper (II) sulfate 5 hydrate at the beginning of the lab?, would you…

A: Given: If you used twice as much copper (II) sulfate 5 hydrate at the beginning of the lab, would…

Q: Find out the molar mass of C6H6Cl6.

A: The Molar Mass of the given Compound can be calculated as -

Q: Determine the empirical formula of the compound according to its elemental analysis: 38.13% C by…

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Q: Calculate the number of Na atoms in 2.56 g of NaNO3 (Avogadro’s number NA = 6.022 x 1023))

A:

Q: is an impossible formula.  If it were real, determine the molar mass of: Fe2S4O5 Remember that you…

A: Given -> Atomic mass of Fe = 55.85 g/mole Atomic mass of S = 32.06 g/mole  Atomic mass of O =…

Q: 8.95 x 1025 molecules of CCl4 to mol of CC14

A: Given that: Molecules of CCl4 = 8.95×1025 Mol of CCl4 =?

Q: 2 Nacl + Cao → CaCl2 + Naz0 What is my theoretical yield of sodium oxide if I start with 20 grams of…

A: Solution - The balanced equation 2 NaCl + CaO →CaCl2 + Na2O  molar mass of CaO = 56.1 g/ mol   of…

Q: Determine the number of moles in: (a) 100 grams of magnesium hydroxide (Mg=24, O= 16, H=1) (b)1.75 x…

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

Q: determine the mass in grams of 1.6 x 10-3 mol glucose C₆H₁₂O₆

A:

Q: Determine the % composition for each element in Al 2 (SO 4 ) 3 ?

A: To find the percent composition of Al₂(SO₄)₃, you divide the total mass of each atom by the…

Q: What number should be placed in the blank in order for this equation to follow the Law of…

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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: Determine the quantity of moles of hydrogen in 3.06 x 10-3g of glycine , C2HSNO.?

A: Please find your solution below : Mole is a measure of amount of any substance.  It is defined as…

Q: Consider the following chemical reaction: 3Mg + B₂03 → 2B + 3 MgO. What mass in grams of magnesium…

A:

Q: Determine the number of moles of Cl in 2.7 mol CaCl2

A: 1 mole of CaCl2 contains 1 mole of Ca and 2 mole of Cl.

Q: 3. How many grams are in 2.35 moles of calcium phosphate, Ca3(PO3)2?

A: Given - - > No of moles of Ca3(PO3)2= 2.35 mol We know that,  Molar mass of Ca3(PO3)2 = 278.1779…

Q: How many moles of NaOH are needed to create 200 grams of Cu(OH)2? Be sure to include units in your…

A: Given in the question = The complete balanced equation = 2NaOH +CuSO4 →Na2SO4 + Cu(OH)2 Mass of…

Q: You need to make up 500.0 mL's of 0.5750 M NaCl (58.44 g/mol). What mass of NaCl should you measure…

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Q: Calculate mass (in grams) of sodium in 8.5 g of sodium-containing food additive. NaCl (table salt)

A: Solution stoichiometry involves the calculation of concentration of solutions in the given…

Q: Calculate the mass of 3.62 x 104 molecules of glucose (C,H1206).

A: Given that :Molecules of glucose (C6H12O6) = 3.62×1024 molecules Mass of glucose =?

Q: 1. How many grams of Ba" 2+ are present in 4.75 grams of barium nitrite? grams Ba2+

A: Solution Ba(NO3)2 is associate degree chemical compound with chemical name atomic number 56 nitrate.…

Q: Determine the mass in grams of 1.6 x 10-3 mol glucose C6H12O6

A: Glucose : The Chemical formula of Glucose is                         C6H12O6It occurs in nature in…

Q: determin the mass in grams of 1.6 x 10-3 mol glucose, C6H12O6

A:

Q: This is an impossible formula.  If it were real, determine the molar mass of: Cr5(PO4)2 Remember…

A: For the given formula    Cr5(PO4)2  is an impossible formula.  In case it were real then the molar…

Q: Magnesium hydroxide, Mg(OH)2, is a common antacid. Calculate the percent composition by mass of Mg…

A: molar mass of Mg(OH)2  = 58.32 g mol-1 molar mass of Mg = 24.30 g mol-1

Q: Calculate the number of grams in 7.75 x 1014 moles of sodium chloride. A. 4.53 x 1016 g B. 4.53 x…

A: Given : Moles of sodium chloride=7.75 x 1014 mol The molar mass of sodium chloride= 58.44 g/mol The…

Q: Calculate the mass in grams of K in 38.2 g of KCl

A: Given is,  Mass of KCl= 38.2 g We know , Molar masxof KCl = 74.5513 g/mol Molar mass of K= 39.0983…

Q: A 10 gram sample of NaCl will have the same percent composition (percent by mass) of Na and Cl than…

A: Mass ratio of Na/Cl in 10 gram of NaCl Molecular weight = 58.44 (g/mole) Atomic weight of Na = 23.99…

Q: Calculate the mass in grams of sodium in 8.5g of: а) NaзPO4 b) Na2C6H607

A: Given: mass of each compound = 8.5 g molar mass of Na = 23.0 g/mol molar mass of Na3PO4 = 163.94…

Q: Calculate the mass (in kilograms) of chlorine in 25 kg of chlorofluorocarbon (CFC). CFCl3

A: Formula-Stoichimetry :  From the formula of a molecule Stoichimetric amount of molecule will react…

Q: Given the following equation: Na20 + H20 → 2 N2OH How many moles of NaOH is produced from 5.66 moles…

A:

Q: 1. A mixture was found to contain 1.50 g of NH4CI, 0.80 g of NaCI, and 1.20 g of SIO2. What is the…

A: It is  mass percent of individual atoms or individual compound is divided by  total mass of mixture…

Q: Calculate the percentage by mass of nitrogen in PtCl2(NH3)2.

A:

Q: 4. What mass of Cu(10,); can be formed from 0.5000g of Cuso, SH,0?

A:

Q: Enter your answer in the provided box. For many years the extraction of gold-that is, the separation…

A:

Stoichiometry

Stoichiometry is a chemical division that evaluates the quantitative content of the chemical process with the help of the reacting molecules or products taking part in the reaction. The term “stoicheion” in “Stoichiometry”, is an old Greek term for "element" whereas “metron” means "measure".