The black powder used to propel a firework into the sky is made up of 72% by mass potassium nitrate (KNO3), 14% by mass charcoal, and the rest is sulfur. Use this information to calculate an answer to the following question: If you want to make 61 g of black powder, how many grams of potassium nitrate would you need?

Q: Starting with the following equation, BaCl2(aq) + Na,PO.(aq) → Ba3(PO4)2(s) + NaCI(aq) calculate the…

A:

Q: 2. A sample of a substance containing only carbon, hydrogen, and oxygen has mass x in grams. It is…

A: The equation for the burning of carbohydrate is: x12a+b+16c CaHbOc  +  O2   →    y44CO2  +  Z18…

Q: The compound known as butylated hydroxytoluene, abbreviated as BHT, contains carbon, hydrogen, and…

A: Consider the given information is as follows; Mass of sample = 3.751 g Mass of CO2 = 11.24 g Mass of…

Q: The fuel used in many disposable lighters is liquid butane, C4H10. Butane has a molecular weight of…

A: Molar mass of any element is equal to the atomic mass of that element in the unit of grams. Molar…

Q: A 3.000 g sample of a gaseous compound was found to contain 2.560 g of carbon and  0.440 g of…

A: To answer this first of all we have to convert grams into moles and we have to determine the simple…

Q: a. How many ATOMS of boron are present in 7.41 grams of boron trichloride? 3.805x10^21 atoms of…

A: Molecule given = BCl3 1 molecule of BCl3 = 1×6.022 ×1023 Molar mass of BCl3 = 117.3 g/mol 117.3 g of…

Q: e empirical formula of ti

A:

Q: Assume that the molar mass of A is 82.93 grams per mole and the molar mass of E is 24.61 grams per…

A: Atoms are the smallest unit of the matter, anything which occupies space and has mass is known as…

Q: Consider the reaction of solid P₄ and chlorine gas to form gaseous phosphorus trichloride. The…

A: The reaction given is P₄(s) + 6 Cl₂ (g) → 4 PCl₃ (g)

Q: 60. Lithium and bromine combine to form lithium bromide, as shown here. If 30 moles of Li react with…

A: 2Li(s) + Br2(l) ----> 2LiBr(s) ............(equation-1) Moles of Li = 30 mole

Q: A scientist is trying to discover information about an unknown metal in a compound. The formula for…

A: 1- First calculate the moles of compound XBr3  moles of XBr3 = ( moles of Br ) / 3  moles of XBr3 =…

Q: Consider the following reaction: 4 NH3(g) + 5 O2(g) → 4 NO(g) + 6 H2O(g) If 3.60 g NH3 and 5.40 g O2…

A: The answer is as follows:

Q: The reaction of 7.71 x 103 g of titanium (IV) chloride gas with 1.45 x 103 g of oxygen gas produces…

A: Titanium chloride reacts with oxygen to give titanium oxide and two moles of chlorine gas.

Q: A student is running an experiment in which 48.1 grams of MgBr2 is needed, but the only jar of…

A: Given Mass of MgBr2 needed = 48.1 g

Q: The fuel used in many disposable lighters is liquid butane, C4H10 . How many carbon atoms are in…

A:

Q: ? The balanced chemical equation for this reaction is shown in the image below. Enter your answer as…

A: GivenSodium =5 gOxygen = 5 g

Q: What is the maximum amount (in grams) of disodium oxide that can be produced if you react 5.0 grams…

A:

Q: What is the mass percent of silicon dioxide (SiO2) if you are able to separate 2.202g out of a…

A: The mass percentage of a compound in a mixture is equal to the ratio of the mass of that compound…

Q: Maggie filtered out a sample of copper (II) chloride, CuCl2 from a local pond, and found its mass to…

A:

Q: Calculate the mass in grams of aluminum iodide (All3) when 23.40 g of aluminum (Al) reacted…

A:

Q: Gun powder reacts according to the following reaction: 10 KNO3 (s) + 8 C (s) +3 S (s) → 2 K2CO3 (s)…

A: We can solve this problem by using defination of mole  Mole is difine as ratio of mass of substance…

Q: 2. Iron reacts with chlorine gas to form iron(II) chloride: 2 Fe(s) + 3 Cl₂(g) →→2 FeCl,(s) What…

A: Two mole of iron react with three mole of Cl2 and produced two mole of FeCl3

Q: A silvery-white, lightweight malleable metal is used in a huge variety of products including cans,…

A: Given: Mass of Al2O3 reacted=8.25×105 g Mass of Carbon reacted=7.50×105 g Yield=35%

Q: A scientist is trying to discover information about an unknown metal in a compound. The formula for…

A:

Q: Consider the following: 4NH3 + 5O2 → 4NO + 6H2O In an experiment, 5.42 g of NH3 are allowed to…

A: Limiting reagent: It can be defined as by saying that the reagent which used up completely in a…

Q: Convert 9.83 x 1022 grams of X4Z4 into molecules/formula units of the same compound. (Assume that…

A:

Q: of Br2, in grams, is required for complete reaction with 9.56 g of A g Br2 of white, solid Al,Bre is…

A: Given,  Balanced chemical reaction,  2Al + 3Br2 ----> Al2Br3 Mass of Al = 9.56 g Molar mass of Al…

Q: When aluminum metals reacts with HCl(aq), the products formed are AlCl3(aq) and hydrogen. If 6.477…

A: Answer:- This question is answered by using the simple concept of stoichiometry which involves the…

Q: the formula for disulfiram decafluoride is S2F10   A.How many molecules are in 1.35 grams of…

A: A.

Q: A scientist is trying to discover information about an unknown metal in a compound. The formula for…

A: We have to calculate molar mass of metal and it's identity.

Q: Mass =

A:

Q: A scientist is trying to discover information about an unknown metal in a compound. The formula for…

A: Step - 1Formula for the compound = XBr3Means in 1 mol of compound 3 mol of Bromine are…

Q: %3D The mass of 2.21 x 1040 atoms of iron (molar mass = 55.845 g/mol) is O 2.78 x 104 g. 2.05 x 102g…

A:

Q: A scientist is trying to discover information about an unknown metal in a compound. The formula for…

A:

Q: Starting with the following equation, BaCl₂(aq) + Na₃PO₄(aq) → Ba₃(PO₄)₂(s) + NaCl(aq) calculate the…

A: Given :-  BaCl₂(aq) + Na₃PO₄(aq) → Ba₃(PO₄)₂(s) + NaCl(aq)  amount of Ba₃(PO₄)₂ = 41.5 g  To…

Q: solution containing 51.0 grams of hydrochloric acid, HCl. The reaction yields zinc chloride, ZnCl2,…

A: First convert mass into mole by diving molar mass respectively Then Calculate limiting reagent by…

Q: Consider the following balanced chemical reaction: N2 (g) + 3 H2 (g) → 2 NH3 (g) What is the…

A: Given: Mass of N2 = 9.36 g Mass of H2 = 4.92 g Known: Molar mass of N2 = 28 g/mol Molar mass of H2 =…

Q: Part A. What is the mass of 9.50 moles of magnesium chloride, MgCl2? Express your answer with…

A: Part A: Calculation of mass of MgCl2 : The number of moles of MgCl2 = 9.50 moles The mass of a…

Q: The reaction of calcium hydride with water can be used to prepare hydrogen gas:       How many g of…

A:

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.