How many grams of sodium fluoride (used in water fluoridation and manufacture of insecticides) are needed to form 485 g of sulfur tetrafluoride? 3SCl2(l) + 4NaF(s) → SF4(g) + S2Cl2(l) + 4NaCl(s)

Q: Consider the balanced reaction of magnesium and oxygen.   2Mg+O2⟶2MgO What mass, in grams, of MgO…

A: number of moles=Given massmolar massGiven mass of Mg=1.89 gmolar mass of Mg=24.3 g/mol∴Number of…

Q: A sample of phosphorous is placed in a 10.05 g crucible and gives 10.24 g then heated red hot to…

A: Mass of empty crucible =10.05g Mass of phosphorus  + crucible =10.24 g Mass of phosphorus oxide +…

Q: Turquoise, CuAl 6 ( P O 4 ) 4 ( OH) 8·5 H 2 O(s), is one of the most valuable non-transparent…

A: Calculate molar mass of both hydrated and anhydrous form of the mineral and then calculate the mass…

Q: For the chemical reaction: 2KI+Pb(NO3)2⟶PbI2+2KNO3 how many moles of lead(II) iodide will be…

A: Given. the balanced chemical equation - We know that the values of the molar mass of the compounds…

Q: How many moles of fluoride ions are present in 11.5 g of NaF?

A: The molar mass of NaF can be calculated as

Q: Over the years, the thermite reaction has been used for welding railroad rails, in incendiary bombs,…

A: The molar mass of Fe is 55.85 g/mol. The molar mass of Al is 26.98 g/mol. The molar mass of Fe2O3 is…

Q: 2. Calculate the mass of hydrogen formed when 25 grams of aluminum reacts with excess hydrochloric…

A:

Q: Iodine is prepared both in the laboratory and commercially by adding Cl2(g) to an aqueous solution…

A: Number of moles of I2 is determined as follows, Molar mass of NaI is 253.8 g/mol 2 moles of NaI…

Q: How many grams of Silicon Tetrafluoride would be formed if 3.63 moles of Sulfuric acid was consumed?…

A: Given; The reaction is as follows: 2CaF2 + 2H2SO4 + SiO2⟶2CaSO4 + SiF4 + 2H2O. The moles of Sulfuric…

Q: What is the molar mass of AuCl3? O 1) 130 g O 2) 303.6 g O 3) 232.5 g O 4) 96 g

A: Atomic mass of Au= 196.97 amu Atomic mass of Cl = 35.45 amu

Q: How many moles of pentane are needed to produce 2.30 x 1023 molecules of carbon dioxide gas?

A: 1st we have to calculate the number of Moles of CO2 from the number of Molecules of CO2. We know , 1…

Q: Over the years, the thermite has been used for welding railroad rails, in incendiary bombs, and to…

A: Given: Mass of iron = 15.0g To find: The masses of iron(III) oxide, aluminium and maximum mass of…

Q: Over the years, the thermite reaction has been used for welding railroad rails, in incendiary bombs,…

A: Mass of Fe = 10.1 g  Atomic mass of Fe = 55.845 g/mol  Number of moles of Fe =  10.1 / 55.845  =…

Q: Elemental phosphorus can be prepared from calcium phosphate via the overall reaction2 Ca3(PO4)2 + 6…

A: The reaction considered is,

Q: What is the minimum mass of sulfur dioxide necessary to produce 200. g of sulfuric acid in the…

A:

Q: What is the mass in grams of Cuo that would be required to produce 21.50 moles of nitrogen gas in…

A:

Q: Iodine is made by the following reaction 2 NaIO3(aq) + 5 NaHSO3(aq) → 3 NaHSO4 (aq) + 2 Na2SO4 (aq)…

A: Given , Reaction : 2NaIO3(aq) +5 NaHSO3(aq) → 3NaHSO4(aq) + 2Na2SO4(aq) +H2O(I) +I2(aq)

Q: If the decomposition of a sample of KClO3 produces 3.29 g of  O2, what was the mass (g) of the…

A: Write balanced equation

Q: What mass, in grams, of NO2 is needed to form 140.4 g of NO? Assume excess water.    3NO2(g) +…

A: The reaction given is  3 NO2(g) + H2O(l)  →  2 HNO3(aq) + NO(g) Given : mass of NO forming = 140.4 g…

Q: 4 NH3 (g) + 5 O2 (g) → 4 NO (g) + 6 H2O (g) What is the maximum mass of water that can be produced…

A: Number of moles of each reactant is calculated.

Q: 2 V2O5 + 5 Si → 4 V + 5 SiO2 Given the above balanced equation, calculate the number of grams…

A:

Q: If 5.7 g of chromium metal reacts with 10.0 g of oxygen, how many grams of chromium (III) oxide (MM…

A:

Q: What is the mass in grams of CuO that would be required to produce 40.50 moles of nitrogen gas in…

A: Ammonia reacts with CuO to form copper, nitrogen, and water. The equation for the balanced chemical…

Q: Phosphorus can be prepared from calcium phosphate by the following reaction: 2Caz (PO4)2 (s) + 6SIO2…

A: Now, as we are given the mass percentage of the phosphorite mineral that is 75% by and the weight is…

Q: calculate the molar mass of a teflon molecule that contains 5.0 x 104 cf2

A: Molar mass is defined as an average mass of atoms present in the chemical formula. It is the sum of…

Q: 32. If 50.0 g of silicon dioxide is heated with an excess of carbon, 27.9 g of silicon carbide is…

A:

Q: How many grams of NO are required to produce 145 g of N 2 in the following reaction? 4NH 3( g)+ 6NO(…

A: Given, the chemical reaction as follows,4NH3(g)+6NO(g)→5N2(g)+6H2O(l)amount of N2 (g) produced =145…

Q: What is the mass in grams of methanol that can be formed from 101 molecules of CO? H₂(g) + CO(g) →…

A: Given equation: H₂(g) + CO(g) → CH₃OH(l) First balance the given equation. 2H₂(g) + CO(g) → CH₃OH(l)…

Q: If 21.6g of carbon dioxide is produced in the reaction below, what mass of water is also produced?…

A: Firstly find the moles of CO2 , then according to mol ratio the moles of water can be found out.

Q: Look at the balanced chemical equation for the reaction between copper and nitric acid: Cu(s) +…

A:

Q: What is the mass in grams of CuO that would be required to produce 22.00 moles of nitrogen gas in…

A: Given data: 22.00 moles of nitrogen gas   The reaction is given as follows:  2 NH₃(g) + 3 CuO(s) →…

Q: Silver sulfide, Ag2S, also called argentite, is an economically important silver ore. If a silver…

A: From the molar masses, we can estimate the amount of silver produced per day from Argentine (Ag2S)…

Q: Cl2(g) + Al(s) AlCl3(s) 70.90 g/mol 26.98 g/mol 133.33 g/mol a. Calculate the theoretical yield of…

A: Given :         2Al (s) + 3Cl2 (g) ->  2AlCl3 (s) 1 mol      3 mol           2 mol Molar masses:…

Q: The balanced chemical equation is P₄(s) + 6 Cl₂(g) → 4 PCl₃(g). What is the mass in grams of…

A:

Q: .a) An oxide of gold (AuxOy) thermally decomposes. A 0.205 g sample of the oxide is heated, forming…

A: a) Given : Mass of AuxOy reacting = 0.205 g And mass of Au formed = 0.183 g Molar mass of Au = 197…

Q: What is the mass in grams of CuO that would be required to produce 38.00 moles of nitrogen gas in…

A: Given , Chemical Reaction : 2 NH₃(g) + 3 CuO(s) → 3 Cu(s) + N₂(g) + 3 H₂O(g) Moles of N2 = 38.0…

Q: What is the maximum number of grams of nickel bromide that can be produced from the reaction of 67.8…

A: Moles = mass / molar mass or atomic mass  Since molar mass of Br2 = 160 g/mol -> moles of Br2 =…

Q: How many grams of Chromium (III) chloride are required to produce 75.0 g of silver chloride? The…

A: By the help of stoichiometric coefficient we can find the amount of unknown substance by the help of…

Q: 2 Fe 2 O 3 (s)+3 CO(g) 3 CO 2 (g)+2 Fe(s) How many grams of carbon monoxide are needed to react with…

A: Given  2 Fe2O3 (s)+3 CO(g)  -----> 3 CO2 (g)+2 Fe(s)  Mass of Solid iron produce = 258.4 g Mass…

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: 2. The reaction of calcium hydride with water can be used to prepare small quantities of hydrogen…

A:

Q: If 5.467 g of KAl(OH)4 was the limiting reagent in the synthesis of Alum, calculate the mass of Alum…

A: Mass of  KAl(OH)4  = 5.467 g  Given that yield of reaction is 98.00 %  We need to find mass of Alum…

Q: Write a balanced chemical equation based on the following description: the reaction of gaseous…

A:

Q: What is the mass in grams of CuO that would be required to produce 42.5 moles of nitrogen gas in the…

A: Ammonia reacts with CuO to form Cu, nitrogen, and water. The equation for the balanced chemical…

Q: What is the chemical formula of a compound with an empirical formula of CH2O and a molar mass of…

A:

Q: What is the molecular formula of a compound which has an empirical formula of CH2 and a molar mass…

A: The empirical formula is CH2​. Therefore, the empirical weight = 14.Given, the molecular weight…

Q: what mass of CO2 is produced by the reaction?

A: Molar mass of carbon is 12.01 g/ mol. Molar mass of CO2= Atomic weight of C + 2× Atomic weight of O…

Q: What mass, in grams, of NO2 is needed to form 182.9 g of NO? Assume excess water.  3NO2(g) + H2O(l)…

A: Mass of NO = 182.9 g Mass of NO2 = ? Molar Mass of NO = 30.01 g mol-1 Molar Mass of NO2 = 46.005 g…

Q: A compound containing only carbon, hydrogen, and oxygen is subjected to elemental analysis. Upon…

A: We have a Compound of 0.2350 g , on combustion give CO2 0.304g , 0.1244 g of H2O. We have to…

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".