19-20. The oxidation of phosphine (PH3) to phosphorus pentoxide (P205) is given by the chemical equation: 2PH3 + 402 P2O5 + 3H2O 19. If the reaction gives 64% yield, how many grams of PH3 should be used to give an actual yield of 250 grams of P2O5? A. 188 g C. 187 g B. 189 g D. 186 g 20. How many grams of P2O5 will be produced in the reaction? A. 73.1 g P2O5 C. 74.1 g P2O5 B. 72.1 g P205 D. 75.1 g P20s

Q: Write a complete balanced equation for the following and indicate the type of reaction:  solid…

A: We use the type of reactions.

Q: How many moles of lithium hydroxide would be required to produce 31.5 g of Li₂CO₃ in the following…

A:

Q: Given the chemical equation: 2H₂ + O₂ → 2H₂O, how many moles of H₂O is produced to balance the…

A: When hydrogen (H2) gas burns in oxygen (O2)  water(H2O) is produced.

Q: Balance the following equation and determine how many moles of aluminum oxide can be produced from…

A:

Q: Balance the following chemical equation (if necessary): PbCOa(s)→ PhO(s) + COa(al

A: The question is based on the concept of chemical reactions. We have  to balance the given reaction…

Q: According to the following balanced equation, calculate the mass of needed SiCl4  to produce 3.14 g…

A: Reaction of SiCl4 with H2O to produce HCl and SiO2 . And balanced chemical equation is ,     SiCl4…

Q: 4) Balance the chemical equation: H,S + O2 → SO, + H,O

A: 4) If the number of atoms of elements on both the sides ( reactant side and product side ) of the…

Q: 3. _CHs + 02 > _CO, +_H20 How many grams of propane would be required to produce 15.00g of CO2?

A: The given unbalanced equation is- A balanced equation is the one that has same number of each type…

Q: Balance the following reactions: 1. Complete combustion of acetic acid, C2H4O2 2. Rubidium metal…

A:

Q: In a neutralization reaction, 50.00 mL of 0.8500 M phosphoric acid reacts with 2.500 g of magnesium…

A: The answers to the first three questions can be given as - Given Data -

Q: Water can decompose into H2H2 and O2O2 via electrolysis. How many moles of H2H2 could theoretically…

A: 2.24 moles of H2H2 could theoretically be obtained from 80.6 g water.

Q: Nitric acid is often manufactured from the atmospheric gases nitrogen and oxygen, plus hydrogen…

A: For the net chemical  reaction we have to eliminate the intermediate.

Q: Write the balanced equation to this reaction: 3.142 g of ammonium phosphate reacts with 1.648 g of…

A: In a balanced chemical equation, the number of atoms on both sides of the equation is equal. The law…

Q: Balance the following equation by algebraic method. C2H6 O2 CO2 H20

A: Balancing chemical equations are based on conservation of mass

Q: 8Fe + S8 → 8FeS How many grams of iron are needed to react with 3.00 g of sulfur?

A: Given weight of sulfur is 3 gram

Q: grams

A:

Q: The balanced equation for the decomposition of potassium chlorate is shown below. When carried out…

A: Mass of KClO3 consume in reaction = 0.0039 kg = 3.9 g Mass of KCl produced in reaction = 1.2 g Molar…

Q: How many moles of water could be produced by the reaction of 3.9 moles of methane, CH4, with excess…

A: The balanced chemical equation is CH4 + 2O2  --------> CO2  + 2H2O

Q: For the synthesis of boric acid; 7.94 g of anhydrous borax was taken and 15 mL of water was added…

A: Please find the attached images for answer

Q: Determine the limiting reactant for the reaction. (Hint: Write a balanced equation for the…

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Q: Calcium nitrate and sodium hydroxide produce sodium nitrate and calcium hydroxide. Write the…

A: Write the balanced reaction and classify the reaction--

Q: C₂H4(a) + H₂O(g) → C₂H5OH(a)

A:

Q: Gaseous water (H₂O) and solid calcium oxide (CaO) are formed by the decomposition of solid calcium…

A: A chemical reaction in which a single reactant breaks down into two or more products is called a…

Q: How many grams of methane gas are required to produce 4.00 grams of carbon tetrachloride?

A:

Q: Ammonium perchlorate (NH4ClO4 or AP) is the principal component of solid rocket propellant. Suppose…

A: Given: Mass of NH4ClO4 = 63.3 g Molar mass of NH4ClO4 = 117.49 g/mol Molar mass of H2O = 18.01528…

Q: How much methanol (CH3OH, in grams) can be formed from 60.2 kg of hydrogen? Assume excess CO.…

A:

Q: Give balanced reactions for the following: methane (CH4) reacts with oxygen to give carbon dioxide…

A: Answer:When a hydrocarbon is burned in presence of oxygen, it forms carbon dioxide and water and…

Q: Nitric acid (HNO3) reacts with iodide ions (I-) to form iodine (I2) and nitrogen oxide (NO) in an…

A: In the redox reaction, we balance both half-oxidation and reduction reactions. Then we add both…

Q: Ethane is a gas similar to methane that burns in oxygen to give carbon dioxide gas and steam. The…

A: The balanced chemical reaction is the chemical reaction in which the elements present in the…

Q: How many moles of CO would be needed to reduce 14.5 grams of iron(III) oxide if the equation for the…

A: The molar mass of a compound is calculated by adding up the molar masses of each of the elements in…

Q: Balance the equation below, and use that equation to determine how many molecules of CO₂ are…

A: Given is a combustion reaction of a benzene(C6H6) and combustion reaction is balanced by balancing…

Q: Sodium metal and chlorine gas can be produced by the electrolysis of molten  Sodium chloride as…

A: The reaction taking place is given as => 2 NaCl (l) --------> 2 Na (l) + Cl2 (g) Given : Mass…

Q: 1 mole of PCI3 is isolated from the reaction of solid elemental phosphorus, P(s), with excess…

A: P (s) + Cl2 (excess) ------> PCl3 % yield = 25% 1 mole of PCl3 is isolated

Q: A flame test was carried out on solid sodium carbonate. The flame colour will be A Red O B Lilac C…

A: Sodium carbonate : NaHCO3

Q: Solid barium oxide and carbon dioxide gas are produced by the decomposition of solid barium…

A: We have to write the balanced chemical equation of decomposition of Barium carbonate

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".