A sample of iron was covered with an excess of powdered elemental sulfur. The mixture was heated to a temperature where a reaction occurred and the excess sulfur was volatilized. Using the following information, what is the mass of iron? Mass of crucible and lid:22.87 grams Mass of crucible, lid, and iron:26.68

Q: An unknown pentahydrate salt is known to release water when heated according to the following…

A: Given: Mass crucible = 24.3365 g Mass crucible + hydrate = 29.6115 g Mass crucible + residue after…

Q: A 25.0 mL aqueous solution of 1.32 M K₂SO4 is necessary for a particular reaction. How many grams of…

A: Molarity of substance is the number of moles present in one litre of solution.

Q: For the following reaction, 126 grams of silver nitrate are allowed to react with 27.9 grams of…

A:

Q: For the following reaction, 4.39 grams of iron are mixed with excess hydrochloric acid. The reaction…

A: Reaction involved : Fe(s)+ 2HCl(aq) ------> FeCl2(aq) + H2(g) We have iron(Fe) and Hydrochloric…

Q: costosen 4. In a single replacement reaction, chlorine and sodium bromide react to form sodium…

A:

Q: For the following reaction, 7.97 grams of nitrogen gas are allowed to react with 1.01 grams of…

A:

Q: 27. Aluminum reacts with oxygen gas to form aluminum oxide, as shown in the reaction below. 4Al(s) +…

A: 4 Al (s) + 3 O2(g) → 2Al2O3(s) This is the balanced chemical equation. We know that , Reactants are…

Q: you mix 13.4 mL of 0.320 M solution of K2CrO4 with 44.8 mL of a 0.320 M solution of AgNO3, what mass…

A:

Q: Solutions of sulfuric acid and lead(II) acetate react to form solid lead(II) sulfate and a solution…

A: Given, Mass of sulfuric acid, H2SO4 = 5.00 g Mass of lead (II) acetate, Pb(C2H3O2)2 = 5.00 g   Moles…

Q: For the reaction 2 Mg(s) + O2(g) → 2MgO, a reaction mixture contains 33.7 g Mg and 28.0 g O2. The…

A:

Q: Under certain conditions, the substances zinc oxide and water combine to form zinc hydroxide. If…

A: 1) Mass of Zinc Oxide =24.3 gm2) Mass of Water = 5.4 gm3) Molar mass of ZnO =81.38 g/mol4) Molar…

Q: For the following reaction, 6.65 grams of oxygen gas are mixed with excess hydrogen sulfide. The…

A: The theoretical yield of the reaction can be calculated by calculating the yield of water produced…

Q: For the following reaction, 9.45 grams of nitrogen gas are allowed to react with 5.81 grams of…

A: Given :-  Mass of Nitrogen gas, N2 = 9.45 g  Mass of Oxygen gas, O2 = 5.81 g  Maximum mass of…

Q: molecules to produce 16 carbon dioxide molecules and 18 water molecules. Use of fossil fuels adds…

A:

Q: Gasoline is primarily composed of iso-octane, which has the chemical formula C8H18. When gasoline is…

A: Given  When gasoline is burned, the chemical equation is: 2C8H18  +  25O2  --->  16CO2 + 18H2O…

Q: If 41.9g of oxygen react with 8.7g of hydrogen and experimentally produce 2.3mol of water, what is…

A: The reaction between hydrogen and oxygen produces water. The balanced chemical equation for this…

Q: Use 1 decimal point for all atomic masses. 82.1 g of Ni3C(s) are reacted with 1.80 g of H2(g) by the…

A: The given reaction is shown below.

Q: A student places 1.520 grams of copper wire along with excess sulfur into a crucible (and cover),…

A: A copper wire is used almost  everything electrical related at home because it's a good conductor of…

Q: - Consider a 3.52-g sample of CaCO3 (99.87% pure) in a flask and a 100.0 mL sample of vinegar (5%…

A:

Q: For the reaction 2KClO3(s)→2KCl(s)+3O2(g) calculate how many grams of oxygen form when each…

A: The balanced reaction given is, => 2 KClO3 (s) ------> 2 KCl (s) + 3 O2 (g)  Molar mass of…

Q: Consider the reaction. heat 2 Al(s) + Fe,O3(s) Al,03(s) + 2 Fe(l) If 11.5 kg Al reacts with an…

A: The balanced chemical equation for the reaction of aluminum with Fe2O3 is given as:…

Q: Balance the following chemical equation and determine the number of moles of Fe(s) produced when 1…

A: Given,  The chemical reaction:  Fe2O3(s) + C(s) -------> Fe(s) + CO2(g)

Q: many grams of silver nitrate must react to give 1.00 g of Ag? Cu(s)+2A9NO3(aq)→Cu(NO3),(aq)+2Ag(s)…

A:

Q: For the following reaction, 23.1 grams of sodium chloride are allowed to react with 57.1 grams of…

A: Moles of NaCl = given massmolar mass=23.158.5= 0.395 mol  Moles of AgNO3 = given massmolar…

Q: If excess chlorine gas reacts with a solution containing 20.0 grams of potasium bromide, how many…

A: Given: 1) Reaction: KBr (aq) + Cl2 (aq) → KCl (aq) + Br2(g) 2) Cl2 gas is in excess. 3) KBr is the…

Q: A chemist needs to add 3.5 moles NaClNaClto a reaction. How much NaCl should she measure out in…

A: Given:  No. of mole of NaCl = 3.5 Molar mass of NaCl = 58.44g/mol Number of mole(n) = (mass of…

Q: Use 1 decimal point for all atomic masses. 82.1 g of Ni3C(s) are reacted with 1.80 g of H2(g) by the…

A: Given Reaction is: Ni3C(s) + 2H2(g) --> 3Ni(s) + CH4(g) Mass of  Ni3C(s)=82.1 g  Mass of H2 =1.80…

Q: For the reaction shown, calculate how many moles of NO2 form when each amount of reactant completely…

A:

Q: 3. Table salt (NaCl) is produced when sodium element reacts with chlorine gas. a) Write the balance…

A: Sodium reacts with chlorine gas to form sodium chloride, the equation for the balanced chemical…

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".