suppose a student reacts 1.57 g Ca with O2 gas. In his/her calculations however S/he mistakenly calculate the theoretical yield with 1.97 g Ca. Will the theoretical yield of CaO be  too high, too low, or unaffected?

Q: 4. How many grams of magnesium oxide can be produced by reacting 0.643 g magnesium that is 94.5%…

A: Please note- As per our company guidelines we are supposed to answer only one question. Kindly…

Q: Vanadium (V) oxide is decomposed into the elements sodium and chlorine by means of electrical…

A: 2V2O5 --> 4V  + 5O2 this oxygen oxidises sulphur to sulphur dioxide 5S  +   5O2 --> 5SO2  five…

Q: Write the balanced chemical equations for (a) the complete combustion of acetic acid 1CH3COOH2, the…

A: all the balanced equations are given below

Q: How many moles of lithium hydroxide would be required to produce 41.5 g of Li,CO, in the following…

A: The balanced chemical reaction taking place is given as, => 2 LiOH (s) + CO2 (g) ---------->…

Q: 4. Write the balanced chemical equation for the reaction between magnesium metal and hydro- chloric…

A: A balanced chemical equation is an equation in which no. of atoms on the reactant side and product…

Q: How many moles of lithium hydroxide would be required to produce 38.5 g of Li,CO3 in the following…

A: The molar ratio expresses the relation between the amount of reactants used and amount of products…

Q: Is the decomposition of CuSO4· 5 H2O a physical or a chemical change? Why?

A: The copper sulfate penthydrate dehydrates to form the clear, anhydrous copper sulfate.

Q: 4. What mass of hydrogen sulphate can be prepared from 50.0 g sulphur dioxide, 15.0 g oxygen, and…

A: We have given,  Mass of sulphur dioxide = 50.0g Mass of oxygen = 15.0 g  Mass of water = 980.0g

Q: Reacting water with magnesium nitride produces ammonia (NH3) and magnesium hydroxide. If this…

A: The reaction of magnesium nitride and water to produce ammonia and magnesium hydroxide is given by:

Q: 1. Calculate the amount of moles of oxygen that is needed to react with 2.4 mol of ammonia to…

A: 1)  Given, 2NH3 + 3O2 + 2CH4  ➝ 2HCN + 6H2O moles of ammonia (NH3) react = 2.4 mol moles of oxygen…

Q: 5. Potassium superoxide is used to generate oxygen in confined places, such as submarines and…

A: We have to calculate the mass of oxygen produced.

Q: The percent yield in the direct reaction of silicon with Cl2 to form SiCl₄ is 62%. Calculate the…

A: The formation of SiCl4 from silicon and chlorine takes place by the following chemical reaction…

Q: A mixed with extraneous matter sample containing aluminum (Al) weighs 1.35 g. the sample a was…

A: Wt. Of Sample = 1.35 g Mass of Al2O3 ppt. = 255.00 mg = 255 * 10-3 g Molar Mass of aluminum = 27.00…

Q: C4H10S(l) + O2(g)= complete and balance the combustion reaction.

A: Due to combustion reaction oxidation of the compound takes place.

Q: A sample of cesium metal reacted completely with water, evolving 2.028 mmol of dry H 2 at 19 degrees…

A:

Q: Write a balanced chemical equation based on the following description: solid cesium reacts with…

A: 6Cs (s) + 2 CsNO (s) -------> 4Cs2O (aq) + N2(g)

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

A:

Q: In the direct reaction of silicon with Cl 2 the yield of SICI 4 is 50 percent. How many grams of…

A:

Q: How many moles of boron will be produced if 400.0 g of B2O3 react completely with excess magnesium?…

A: In the given equation: 3 Mg(k) + B2O3(k) ------> 2B(k) + 3 MgO(k) Given that 400 g of B2O3…

Q: 2Pb(s)+O2(g)⟶2PbO(s) How much oxygen is needed to react with 400 grams of lead?

A:

Q: Lithium faces an increasing demand since the alkali metal is a key component in a lithium- ion…

A: Given  Number of moles of lithium = 5.40 mol we have to calculate the weight of lithium. Molar mass…

Q: Tungsten metal, used in light bulb filaments, is produced from the reaction between tungsten (VI)…

A: Given, Mass of tungsten (VI) oxide, WO3 = 34.5 kg = 34500 g % yield = 75 %

Q: What is the theoretical yield of SO 3  SO3 produced by 5.66 g g of S S ?

A:

Q: The reaction of barium with sulfur is similar to that of magnesium with sulfur. Write the balanced…

A: A balanced chemical equation is the one in which the elements of the reactants becomes equal to the…

Q: 1.600 g of aluminum sulfate sample was dissolved in water and aluminum was precipitated as Al(OH)3.…

A: The mass % of the substance is equal to the ratio of mass to the molar mass of the substance…

Q: 2) How many moles of sodium will react with water to produce 4.0mol of hydrogen in the following…

A: Sodium metal is a highly reactive metal and it reacts with water readily to form the base and…

Q: Consider the following reaction at 25 °C: 3 Ni(s) + N2(g) + 3 H,0(g) → 3 NiO(s) + 2 NH3(g) Given the…

A: ∆H = 391.3 kJ/mol

Q: For the reaction N, + 3H, 2NH, what is the Mole ratio of nitrogen to hydrogen? t. Mole ratio of…

A: In a balanced chemical equation , the stoichiometric coefficients of reactants and products…

Q: What is the maximum possible yield (in grams) of the NaN3?

A: Number of moles = mass/molar mass  Ideal gas equation;-  PV= nRT  Molar mass of NaN3 = 65.009 g/mol…

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

A:

Q: 5. How from 45.1 grams of cadmium with excess sulfur? many moles of cadmium chloride can be produced…

A:

Q: What mass of oxygen gas is produced in the electrolysis of water, for every gram of hydrogen gas…

A:

Q: How many moles of electrons are required to produce 18.1 g of potassium metal from a sample of…

A: We are hereby asked that how many moles of electrons are required to produce 18.1 g of potassium…

Q: What weight in kg of H2O will be produced if 12.3 moles of C3H8 are used?

A: Combustion reactions are reactions in which a substance reacts with an excess of air or oxygen to…

Q: Write a balanced chemical equation for the reaction of propane (C 3H 8) with oxygen (O 2) to form…

A: Given: Reaction of propane (C3H8) with oxygen (O2) to form carbon dioxide (CO2) and water (H2O)

Q: Solid silver oxide, Ag2O(s), decomposes at temperatures in excess of 300 ∘C, yielding metallic…

A: The balanced decomposition reaction of silver oxide (Ag2O) at temperature in excess of 3000C can be…

Q: Complete and balance the following equations: (a) CO,(8) + OH (aq) → (b) NaHCO,(s) + H*(aq) (c)…

A: Since your question contains multiple subparts we will solve only the first three subparts. For the…

Q: II. Consider the given for nos. 5 to 7: SnO2(s) + 2 H2(g) → Sn(s) + 2 H2O(1) Determine: _5) the mass…

A: Hey, since there are multiple questions posted, we will answer first question. If you want any…

Q: What mass of hydrogen peroxide (H202) must decompose to produce (oxygen and) 0.77 g of water?

A:

Q: suppose 1.57 g of Ca is heated in the air. what is the theoretical amount of CaO that will be…

A: The number of moles of a given chemical species refers to the ratio of mass to the molar mass. The…

Q: What is the enthalpy change (in kJ) if 10.0 g of CaO reacts with an excess of C?

A: Since enthalpy of reaction is not given. It can be calculated using writing the equation and using…

Q: theoretical yield

A:

Q: Automotive air bags inflate when a sample of sodium azide, NaN3, is very rapidly decomposed. 2NAN,…

A: The balanced reaction taking place is given as, => 2 NaN3 (s) -------> 2 Na (s) + 3 N2 (g)…

Q: Consider the series of reactions to synthesize the alum (KAl(SO4 )2 · xH2O(s)) Assuming an excess of…

A: Alum having general formula KAl(SO4 )2 · 12H2O(s) to synthesis alum reaction is

Q: mass

A:

Q: 6. Consider the following reaction Cas(PO.)2 + 3 H,so, → 3 Caso, + 2 H;PO, a. What masses of calcium…

A: Limiting reagent It is a reagent that will be consumed completely in a reaction and determines the…

Q: Consider this reaction, which occurs in the atmosphere and contributes to photochemical smog: N2(g)…

A: The reaction taking place is  N2(g) + O2(g) →2NO(g) Hence from the above reaction, we can say that 1…

Q: How many grams of Al2O3 can be produced from 9.5 g Al?

A: Given, Mass of Al = 9.5g. The reaction of Al2O3 formation from Al is given as follows:

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".