Proactinium is a highly toxic metal and one of the rarest found on Earth. One method for preparing pure proactinium is: 2 PaI5  -----------> 2 Pa  + 5 I2   How many grams of proactinium can be prepared from 15.8 g of PaI5?

Q: In a blast furnace, iron (III) oxide is used to produce iron by the following (unbalanced) reaction:…

A:

Q: Cryolite, Na, AIF, (s), an ore used in the production of aluminum, can be synthesized using aluminum…

A: Al2O3 (s)+NaOH (l) +HF(g)--> Na3AlF6+ H2O(g) To balance the reaction, first balance number of Al…

Q: 8. Assume that the following exchangeable cations are present in a 25 gram sample of a soil Cation…

A: The solution of the question is given below:

Q: How many grams of Fe can be produced when 10.0g of Al is reacted with 10.0g of Fe2O3?

A: 2Al + Fe2O3 ------------> 2Fe  + Al2O3 This is required Balanced chemical equation.

Q: When 14.0 g of calcium metal is reacted with water, 5.00 g of calcium hydroxide is produced. Using…

A: Given: Actual yield = 5g

Q: Muriatic acid, an industrial grade of concentrated HCl, is used to clean masonry and cement. Its…

A: Given , Concentration of muriatic acid = 11.6 M Diluted solution of muriatic acid , concentration =…

Q: Calcium hydroxide undergoes a decomposition reaction a Write a balanced chemical equation for this…

A: Here we have to determine the mass of H2O and CaO produced by the decomposition of  0.56 mole of…

Q: 20. A research supervisor told a chemist to make 100.0 g of chlorobenzene (C6H5CI ) from the…

A:

Q: Urea, CH4N20, is produced by the reaction between ammonia and carbon dioxide, as shown by the…

A: a.

Q: When 6.0 g of aluminum reacts with an excess of molecular bromine (Br2), 50.3 g of aluminum bromide…

A: Balanced Equation of the reaction 2 Al (s) + 3 Br2 (l) -------> 2 AlBr3 (s)

Q: How many grams of solid Ca3(PO4)2 can be formed from a reaction of 51.8 mL of 0.754 M CaCl2 and 21.5…

A:

Q: How many grams of NO will be produced from 80.0 g of NO₂ reacted with excess water in the following…

A: Given, mass of NO2 = 80.0 g  Molar mass of NO2 = 46.0 g/mol Molar mass of NO = 30.01 g/mol

Q: 2/How many grams of aluminum oxide are produced from the synthesis reaction of 32.5 g of Al? Balance…

A: The balanced equation and Amount of Aluminum the oxide formed from 32.5 g of Al is given below

Q: The drug Antabuse is used to treat alcoholism by making patients violently ill if they drink…

A: The neutralization reactions involve the reactions between an acid and a base to produce its…

Q: The first step in the Ostwald process for making nitric acid is the formation of NO according to:…

A: The first step in the Ostwald process for making nitric acid is the formation of NO according to:…

Q: Question5

A: Given data, 100 g of SiO2 gives 51.4 g of SiC It is known that, The molecular weight of SiO2 =60.08…

Q: How many grams are needed to prepare 250.0 mL of 1.0000 M of Potasium Hydrogen phthalate KHP…

A:

Q: What mass of silver nitrate, AgNO3, is requiredto prepar 800 g f350% solution of AgNO3 ? a. 24.6 g…

A: The required mass of Silver nitrate can be calculated as3.50% AgNO3 means 3.50g AgNO3/100 g soln.

Q: 2 NaClO3 → 2 NaCl + 6O2 balanced or not balanced

A: Given  Reaction 2NaClO3   →  2NaCl  + 6O2 Reaction is balanced or not = ?

Q: Please show work

A:

Q: What is the sum of ALL coefficients when the following equation is balanced, using the smallest…

A: The balanced equation can be written as: 4Ag + 2H2S + 1O2 → 2Ag2S + 2H2O When 4 mole Ag reacts with…

Q: 1.ln the preparation of aspirin, 6.0 grams of salicylic acid was made to react with acetic anhydride…

A:

Q: 3. How many grams of copper are required to replace 4.00 g of silver nitrate, which is dissolved in…

A:

Q: n dioxide reacts with elemental carl SiO2(s) + 3 C(s) → Si SiO2 reacts with excess carbon, 7.2 first…

A:

Q: Aluminum content of an alloy; It is determined gravimetrically to form aluminum-8-hydroxyquinoline…

A:

Q: mmonia can be made by reaction of water with magnesium nitride as shown by the following unbalance…

A: Since your question has multiple parts, we will answer the first question for you. If you want…

Q: The aluminium in a 1.2 g sample of impure NH4Al (SO4)2 was precipitated as hydrous Al2O3. The…

A: The number of moles is defined as the ratio of the mass of a substance to its molar mass. Number of…

Q: KMnO4 according to the  following chemical equation: K2C2O4 (aq) +  2 KMnO4 (aq) +  8 H2O  →10 CO2…

A: Based on the balanced chemical equation for the given reaction and following simple unitry method we…

Q: Iron is generally produced from iron ore through the following reaction in a blast furnace. If 400 g…

A:

Q: Vanadium(V) oxide reacts with calcium according to the chemical equation below. When 20.0 moles of…

A:

Q: calculate the percent yield for the reaction?  Ca(s) + 2 H2O(l)  ®  Ca(OH)2(aq) + H2(g)

A: We have to calculate the percent yield for the reaction? Ca(s) + 2 H2O(l)  ®  Ca(OH)2(aq) + H2(g)

Q: If MgCl2·H2O is the limiting reagent with a mole amount of 0.00189 mole. What is the theoretical…

A:

Q: One can prepare homemade lavender perfume by steam distillation. One of the main components in the…

A: The explanation is given below-

Q: 2. Balance the equation and determine how much ammonium sulfate is made from 5 moles of ammonium…

A:

Q: When 24.0 g of calcium metal is reacted with water, 5.00 g of calcium hydroxide is produced. Using…

A: Given dataMass of calcium = 24.0gMass of calcium hydroxide= 5.0g

Q: In the production of printed circuit boards for the electronics industry, a 0.765 mm layer of copper…

A: Area of one board = 7.55 cm x 18 cm = 135.9 cm2.Area of 8700 board = 8700 x 135.9 cm2 = 1182330…

Q: What mass of NO could be produced from 2.5 G of oxygen gas in the presence of excess ammonia ?…

A: The balanced Chemical Reaction given in the question -   4NH3(g) + 5O2(g) ---> 4NO(g) + 6H2O(I)…

Q: A chemist adds 3g of zinc to a solution containing an excess of silver nitrate  Only 7.2g of silver…

A: Given information: Mass of zinc = 3 g Actual yield of silver metal = 7.2 g

Q: All ch 1. Balance the equation and determine how much ammonium Hydroxide is needed to react 5 moles…

A: H2SO4 + 2NH4OH → 2H2O + (NH4)2SO4

Q: 5. Write the balanced equations for following reactions. Identify which product is (aq) and which is…

A: To find: the balanced chemical equations. An equation for a chemical reaction is said to be balanced…

Q: Which of the following can be said true about the reaction below? (Can select multiple)  2Fe(OH)3(s)…

A:

Q: Aluminum content of an alloy; It is determined gravimetrically to form aluminum-8-hydroxyquinoline…

A: Percentage of an element in an alloy can be calculated as: Percentage of element=mass of element…

Q: What mass (g) of AgBr is formed when 57.8 mL of 0.316 M AgNO_3 is treated with an excess of aqueous…

A: The given data contains, Volume of AgNO3 = 57.8 mlMolarity = 0.316 M

Q: Calculate the mass of limestone () that must be decomposed to produce 425 g of lime (). The equation…

A: Mass of lime stone (CaCO3) produced = 758.93 g

Q: 5. A 0.5664 g ore sample is dissolved in nitric acid and then filtered. The aluminum is present in…

A:

Q: Calculate the percent purity of copper in an ore in terms of Cu2O from the given data: Weight of…

A: Given that: mass of copper ore = 1.20 g Volume of Na2S2O3 = 40.00 mL 1.00 mL Na2S2O3 ≈ 0.004175 g…

Q: What is the balanced equation of 3m? What is the balance equation of Ksp= [Ag+]²[CrO4²-]

A: We have to just write the balanced equation.

Q: "Native," or elemental copper can be found in nature, but most copper is mined as oxide or sulfide…

A: (a) As specified by the question - one copper penny has a mass of 3g. therefore, 100 copper penny…

Q: 4. A mixture of KC1O3 and MnO2 weighing 1.75g was heated to 3000C until decomposition was complete.…

A: Number of Mole- Ratio of given mass of substance to the molar mass of substance is called number of…

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".