What is the percentage by mass of sodium (Na) in a formula unit of sodium hydrogen carbonate (NaHCO3)? 44.2% O 37.7% 27.4% 16.7%

Q: - Cucl(aq) H2S(g) How many moles of copper(l) sulfide could be produced from 12.6 moles of copper(I)…

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Q: How many moles of Na3AlO3 can be formed from 90.0 g of sodium hydroxide?

A: Given that , Weight of NaOH = 90 gram Molar mass of NaOH = 40 gram Now no. Of moles of NaOH = 90/40=…

Q: Assuming one mole of compound, calculate the theoretical percentage composition of P₂O3. O P: 56.4%…

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Q: CH4(g) + 2 O2ie) CO2(g) + 2 H2O(g) What mass of water is produced by the complete reaction of 10. g…

A: Given the balanced reaction, CH4(g) + 2O2(g) → CO2(g) + 2 H2O(g) mass of methane = 10. g

Q: Aluminum carbide (Al4C3) reacts with water to produce gaseous methane (CH4). Calculate the mass of…

A: Record the given data, Weight of aluminum carbide = 63.2 g The balanced equation for the reaction…

Q: Calculate the molar mass of a transition metal oxalate with the formula XC,04•6H2O. The molar mass…

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Q: What is the theoretical yield of CaO if 24.8 g of CaCO3 is heated? O 9.65 g Cao O 16.13 g CaO O…

A: Given data : Mass of CaCO3 = 24.8 g MMolar mass of CaCO3 = 100.08 g/mol Molar mass of CaO = 56.08…

Q: How may moles of Al2O3 would be produced from the complete reaction of 17 moles of Al in the…

A: We have to compare the stoichiometric coefficient of desired reactant and products to have a…

Q: Calculate the theoretical number of moles of sulfate that could be produced from 0.1 g of sulfur, if…

A: Given mass of sulphur = 0.1 g  Molar mass of sulphur = 32 g.mol-

Q: How many metal atoms are present in the compound represented as Al203? O 1 O 2 O 3 O 5

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Q: Calculate the mass percent composition of each element in a potassium ferricyanide, K3Fe(CN)6…

A: Ratio of mass of particular element in the molecule to the mass of molecule multiply by 100 is known…

Q: What is Angas for the following equation? N2O4 (g) =2 NO2 (g) 2 O -1 O -2 O 3 O 1

A: ∆ngas = gas product moles - gas reactant moles. Product moles = 2, Reactant moles = 1. Therefore…

Q: Is the following chemical equation balanced? Does it follow the Law of Conservation of Mass? 2Fe…

A: In a balanced chemical reaction all the atoms of each element is same in reactants side with that of…

Q: How many grams of KClO3 are required to form 7.09 g of O2?

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Q: 12KOH + 6I2 -> 10KI + 2KIO3 + 6H2O   calculate the number of moles of KOH to produce potassium…

A: Given 12KOH + 6I2 -> 10KI + 2KIO3 + 6H2O calculate the number of moles of KOH to produce…

Q: Calculate the percent composition of sodium in borax ,Na2 B2 O7 used in commercial laundry process.…

A: The given data is as follows: The atomic mass of Na = 23 The atomic mass of B = 10.81  The atomic…

Q: What is Angas for the following equation? 2 SO2 (g) + O2 (g) =2 SO3 (g) O 2 O 1 O -2 O 3 O -1

A: Sulfur dioxide reacts with oxygen to form sulfur trioxide. The equation for the balanced chemical…

Q: When the follow equation is balanced, what coefficient would fall before the formula "O2"? O2 + FeS…

A: Given O2  + FeS → Fe2O3  + SO2

Q: A 100 mg sample of Epsomite (MgSO4·7H2O) was heated in a crucible. After cooling to room…

A: It is given that:Mass of Epsomite (MgSO4.7H2O) = 100 mgMass of anhydrous salt (MgSO4) = 49 mg

Q: What is the mole ratio of Hydrogen (H2) to Ammonia (NH3) in this balanced equation? N2(g) + 3H2(g)…

A: N2(g) + 3H2(g) -> 2NH3(g)

Q: Calculate the mass of 3.62 x 1024 molecules of Vitamin A which has a molar mass of 180g/mole. O 1.08…

A: Given,the number of molecules of vitamin A =3.62×1024 moleculesmolar mass of vitamin A =180 gmolwe…

Q: 1. How many moles of sulfur will you need to react with 1.42 moles of iron? Given the following…

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Q: How many grams of NaOH is produced from 120 grams of Na2O?

A: Since you have posted multiple questions, we are entitled to answer the first only. Please repost…

Q: Calculate the empirical formula for the compound found to have the following elemental composition…

A: Empirical formula is the simplest ratio of the number of elements present in the given molecular…

Q: Calculate mass (in grams) of sodium in 8.5 g of sodium-containing food additive. Na3PO4 (sodium…

A: To calculate the mass of sodium in 8.5 g of  Na3PO4 (sodium phosphate)

Q: Calculate the mass percent of H2O2

A: To solve this problem first we calculate the mass of Hydrogen peroxide .then mass Percent is…

Q: What is the mass (in kg) of 6.89 × 1025 molecules of CO2? The molar mass of CO2 is 44.01 g/mol. O…

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Q: Theoretical mole ratio from formula: moles of Cu per moles of CuCO3 Cu(OH)2 = 1.97.

A: Mole ratio =molar mass of particular compound /molar mass of whole compound.

Q: Determine the number of moles in 8.73 x 1023 formula units of CaCl2.

A: We can used the equation for calculating the moles of given formula unit.  Equation is :  Number of…

Q: What is Angas for the following equation? 4 NH3 (g) + 3 O2 (g)=2 N2 (g) + 6 H,O (g) O 2 O 1 O 3 O -1…

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Q: • What mass of carbon dioxide is emitted by an automobile per 5.0 x 102 g pure octane used?

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Q: What does Na3PO4 + Cu(NO3)2 yield? What is the total ionic equation? What is the net ionic equation?

A: A chemical equation in which the electrolytes of aqueous solution are represented as dissociated…

Q: How many moles of lithium hydroxide would be required to produce 83.5 g of Li:COs in the following…

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Q: determine the mass percent hydroxide, oh^-, in cu(h2o)4(oh)2

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Q: What is the maximum amount (in grams) of sulfur dioxide that can be produced by the reaction of 1880…

A: the answer is as follows:

Q: Peroxyacylnitrate (PAN) is one of the components of smog. It is a compound of C, H N and O.…

A: Empirical formula :-  The formula which shows only relative number of atoms of different elements…

Q: What is the mass percent of hydrogen in the following compound? C4H8O4

A: C4H8O4 molecules contain 4 carbon, 8 Hydrogen and 4 oxygen atoms.   The mass of 1 mole of C4H8O4 is…

Q: Calculate the percentage composition of Ca in CaSO4.

A: Molecular weight of CaSO4 = 136.14g/mol Molecular mass of calcium = 40.078g

Q: 12KOH + 6I2 -> 10KI + 2KIO3 + 6H2O calculate the number of moles of iodine (elemental) to produce…

A: We have to find out the number of Mole of I2 to formed 10 mole of KI

Q: Upon decomposition, a sample of sodium bicarbonate produces 0.0118 g of sodium carbonate, Na2CO3.…

A: First of all, balance the chemical equation NaHCO3   →            Na2CO3+H2O+CO22NaHCO3  →…

Q: When the follow equation is balanced, what coefficient would fall before the formula "P4"? P4 + O2 →…

A: A chemical reaction will be a balanced chemical reaction if it contains an equal number of atoms on…

Q: When the follow equation is balanced, what coefficient would fall before the formula "Pb(NO3)2"?…

A: When the following equation is balanced, what coefficient would fall before the formula Pb(NO3)2.…

Q: Balance the chemical equation below using the smallest possible whole number stoichiometric…

A: The Chemical reaction follows the law of conservation of mass. According to the law of conservation…

Q: Calculate the percentage by mass of magnesium in magnesium sulphate (MGSO4). 24 +32 +16 ×4 = 120 .

A: Introduction The percentage by mass of any element that is available in any particular compound can…

Q: You have a container with a mass of 559 grams of Clorox disinfection wipes, that contain by mass…

A: First we are Calculate mass of substance using total mass and mass percent .  Then using molar mass…

Q: Calculate the percent composition of oxygen in N2O4

A: The mass percent composition of Oxygen in N2O4 is given by

Q: How many grams of aluminum oxide (Al2O3) will be formed from 12.1 grams of oxygen (O2)

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Q: What is the percent composition by mass of nitrogen in a 52.2 g sample of trimethylenediamine,…

A: given Mass of sample = 52.2 g = mMolar mass of molecule = 74.13 g/mol = MMoles of triethylenediamine…