un o 8u described in this laboratory. After heating, the sample is found to weigh 2.245 grams. How moles of H20 were present in the sample? How many moles of Fe(NO3)3 were present?

Q: CaI2+2AgNO3⟶2AgI+Ca(NO3)2 how many moles of silver iodide will be produced from 217 g217 g of…

A: Reaction is given below. CaI2+2 AgNO3⟶ 2 AgI + Ca(NO3)2

Q: What is the minimum amount of KCN in moles needed to extract 30.0 g (about an ounce) of gold? Au +…

A: What is the minimum amount of KCN needed to extract 30 g of gold ?

Q: Most fertilizers consist of nitrogen-containing compounds such as NH3, CO(NH2)2, NH4NO3, and…

A: Mass percent composition is calculated by the formula, Mass % = mass of element in 1 mole of…

Q: if hydrogen gas and nitrogen gas react as shown what must be the chemical formula of the product? 3…

A:

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 Al are necessary to form 76.8 g of AIBR3 from this reaction: 2 Al(s) + 3 Br2(1) →…

A: The question is based on the concept of Reaction Stoichiometry.         We have to identify the…

Q: CH3COCH3 + O2 = CO2 + H2O a. How many moles of carbon dioxide ( CO2) are produced in the reaction…

A: CH3COCH3 + O2 ---> CO2 + H2O  Molar mass of H2O = 18 g/mol  Moles of CO2 produced =?  Mass of H2…

Q: According to the following reaction, how many grams of oxygen gas are required for the complete…

A: Given that : Mass of ammonia = 25.2 g The molar mass of ammonia is 17.03 g/mol So, Number of…

Q: What mass, in grams, of NO2 is needed to form 132.9 g of NO? A 3NO2(g) + H20() → 2HNO3(aq) + NO(g) x…

A:

Q: A: What is the correct chemical formula when Co4+ combines with S2- ?  B:  How many ATOMS of OXYGEN…

A: A: What is the correct chemical formula when Co4+ combines with S2-?

Q: How many grams of manganese(II) hydroxide contain 2.80 grams of Mn2+?

A: The formula for manganese hydroxide is Mn(OH)2  The molar mass of Mn = 54.93g/mol The molar mass of…

Q: What is the weight of nitric acid in 12.5N HNO3 solution? Use the following atomic weights H - 1…

A:

Q: A student is conducting a laboratory experiment with sulfur hexafluoride (SF6) with a molar mass of…

A: Given data, Mass of SF6 = 235.7 g Molecular weight of SF6 = 146.07g/mol

Q: 2 Fe203 + 3 C → 4 Fe + 3 CO2 how many moles of Carbon (C) are needed to produce 1.9 moles of Iron…

A: The given equation is as follows 2Fe2O3 +  3C ----------->>> 4Fe + 3CO2  According to…

Q: Suppose that a device is using a 10.0-mg sample of silicon that is doped with 1 x 10-5% (by mass)…

A:

Q: Given 6Li + N2 0 2 Lİ3N, Determine the number of moles of lithium required to make 46.4 g of lithium…

A: 6Li + N2 = 2Li3N  Atomic mass of Li is 6.94 g. Molar mass of Li3N is [ (3×6.94)+14] = 34.83 g. 2…

Q: Question is attached

A: Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for…

Q: hat are the percentages of carbon, hydrogen, and nitrogen in the compound? What is the empirical…

A: Solution: So this question is from the stoichiometry. We  have general knowledge of formulae for…

Q: A chemist weighs 50.0 grams of solid NaOH. a) How many moles of NaOH are in the sample? [ Select ]…

A:

Q: 1. How many GRAMS of manganese(II) are present in 1.89 grams of manganese(II) hydroxide, Mn(OH)2 ?…

A: Number of moles = mass/molar mass  Molar mass of Mn(OH)2 = 88.95 g/mol  Molar mass of Mn(II) =…

Q: How many moles of phosphate ions are present in a sample that contains 2.13 moles of iron(II)…

A:

Q: The complete combustion of a hydrocarbon produced 352 mg of CO2 and 216 mg of H2O. What is the…

A:

Q: Sodium hydroxide reacts with carbon dioxide as follows: 2NaOH(s)+CO2(g)→Na2CO3(s)+H2O(l)   How…

A: Given, Chemical Reaction:  2NaOH(s)+CO2(g)→Na2CO3(s)+H2O(l) Moles of NaOH = 2.30 moles  NaOH is…

Q: Ca(s) + 2HCI(ag)--> CaClalaq) + H2(g) What is the mass of CaCl, that can be produced from 0.621 g of…

A:

Q: 2.49 g CuO + 5.05 g H2SO4 which reactant would limit the quantity of copper (II) sulfate that could…

A: Limiting reagent is the reagent which is consumed in the chemical reaction completely. It decides…

Q: According to the following reaction, how many grams of oxygen gas are required for the complete…

A: Ammonia reacts with oxygen gas to form nitrogen monoxide and water. The equation for the balanced…

Q: If you have 6 moles of Al(OH)3, how many moles of Cu(OH)3 will be produced?

A: Note : Formula for copperhydroxide is written wrong. Cu(OH)3 is wrong formula. Correct formula is…

Q: Sodium hydrogencarbonate undergoes thermal decomposition as shown. 2NaHCO, → NażCO3 + CO2 + H20 What…

A: Thermal decomposition reaction :-            In this reaction the amount heat energy required to…

Q: How many grams of water could be made from 5.19 mol H2 and 3.86 mol O2?

A: Since you have posted more than one question,we can solve only first question for you. If you want…

Q: For the chemical reaction below, determine the amount of HI produced when 3.29E+0 g of hydrogen is…

A:

Q: In the following chemical reaction, determine the number of moles of NH3 from 2.50 moles of H2.…

A: Given reaction,             Moles of H2 is 2.50.

Q: Consider the following balanced reaction: N2(g) + 3 H2(g) 2 NH3(g) What mass of NH3 can be formed…

A: Given: Moles of H2 = 9.02 x 10-4  molesWe know that,molar mass of NH3 = 17 gThe balanced eqn…

Q: A cylinder of nitrogen gas (N2) weighs 550 grams. How many moles of nitrogen are present in the…

A: Molar mass of N2 = 28.0 g/ mol

Q: 2 C8H10 + 21 O2 ------------> 16 CO2 + 10 H2O   How many grams of O2 are required to produce 7.00…

A:

Q: Given 6Li + N2 0 2 LI3N, Determine the number of moles of lithium required to make 46.4 g of lithium…

A: As per our company guidelines we are supposed to answer only one question. kindly repost other…

Q: 2. How many grams of chocolate are there in 84.0 X 102 molecules of chocolate, C,H,N,0,?…

A: To determine the grams of chocolate in 84.0×1022 molecules of chocolate C7H8N4O2

Q: 3Al + 3NH4ClO4 → Al2O3 + AlCl3 + 3NO + 6H2O what mass of ammonium perchlorate (in kg) should be…

A: Given,  3Al + 3NH4ClO4 → Al2O3 + AlCl3 + 3NO + 6H2O The mass of aluminum = 5.00 Kg  The mass of…

Q: 1. N + 3H How many moles of hydrogen are needed to completely react wiih two moles of nitrogen? 2NH,

A: Note: According to our guidelines we are supposed to answer only one question.

Q: How many moles of Al are necessary to form 71.2 g of AIBR, from this reaction: 2 Al(s) + 3 Br,(1) –→…

A:

Q: In a reaction, 1 mole of silver nitrate combines with 1 mole of sodium chloride. AgNO3 + NaCl…

A: This is an example of Inorganic reaction where precipitation of AgCl takes place . Details…

Q: 2. A synthesis reaction produces ammonia: 3H2(g) + N2(g) -> 2NH3(g). What is the maximum amount of…

A: The amount of product can be determined by the limiting reagent of the reaction. The limiting…

Q: The density of carbon tetrachloride is 1.59 g/mL. How many moles are present in 50.0 mL of carbon…

A:

Q: For many years, the extraction of gold - that is, the separation of gold from other materials -…

A: Given,

Q: If 4.22 x 10-4 moles of Ca2+ were in a 5.00 mL sample of water, how many grams of CaCO3 are in the…

A: Moles of Ca^2+ = 4.22×10^-4mole Volume = 5.00ml = 5× 10^-3litere

Q: Which one of the following is not equivalent to one mol of the substance? O 65.39 g Zn O 55.85 g Fe…

A:

Q: 3I2 + 6KOH → 5KI + KIO3 + 3H2O Is this a Balanced Chemical Reaction?

A: Yes it is a balanced equation. LHS = RHS.

Q: 1)_CsHs +, _02 > _CO2 +_H20 6.003g of oxygen, makes how many moles of water?

A:

Q: What is the molar mass of Mg3(PO4)2 ? O 150.3 g/mole O 71.28 g/mole O 214.3 g/mole MacBook A

A: The answer is given as follows

Q: In an amazingly violent reaction, water can be synthesized from hydrogen gas a oxygen gas. What is…

A: In water synthesis from hydrogen gas and Oxygen gas, hydrogen gas and Oxygen gas should in molecular…

Q: 25.If 0.274 moles of a substance weighs 62.5 g, what is the molar mass of the substance, in units of…

A: Given data Moles of substance = 0.274 mol weight of substance = 62.5 g find out the molar mass of…

Mole Concept

Mole concept is a method to determine the amount of any substance that consists of some elemental particles using a grouping unit called ‘mole’. The mole concept enables one to handle the large amount of small elementary particles. The mole concept can be used in many calculations related to mole calculation, molar amount, mole ratio, and so on, which are significant in chemistry.