Ammonium dihydrogen phosphate, formed from the reaction of phosphoric acid with ammonia, is used as a crop fertilizer as well as a component of some fire extinguishers. (a) What are the mass percentages of N and P in the compound? (b) How much ammonia is incorporated into 100. g of the compound?

Q: If 6.750 grams of lithium carbonate was used in the reaction, how many grams of carbon dioxide would…

A: The equation for the decomposition of lithium carbonate is as follows. Li2CO3 → Li2O + CO2 This is a…

Q: Grignard reagents, which contain a C—Mg bond, have thegeneral formula CH₃—(CH₂)ₓ—MgBr and are…

A: GIVEN: General formula CH₃—(CH₂)ₓ—MgBr To Solve: a)mass percentof Mg if x=0 b) mass percent of Mg if…

Q: What is the theoretical yield of MgO from the combustion of 5.25 x 10^23 atoms of Mg and 4.69 x…

A:

Q: The hardness of water (hardness count) is usually expressed in parts per million (by mass) of CaCO3,…

A: Given,The water sample with a hardness count of 175 mg CaCO3/L

Q: Thirteen grams of titanium metal react with sixty grams of bromine. (i) Calculate the mass (in gram)…

A: The balanced chemical reaction is as follows: Ti(s)+2Br2(l)→TiBr4. The mass of Ti=13 g. The mass of…

Q: Write a balanced chemical equation for the photosynthesis reaction in which gaseous carbon dioxide…

A: The process by which the plants make their own food with the aid of sunlight is termed as…

Q: Write the empirical formula of the compound formed by (a) Al3+ and Cl - ions, (b) Al 3+ and O2 -…

A: The empirical formula of the compound formed by (a) Al3+ and Cl- ions, (b) Al3+ and O2- ions, (c)…

Q: (a) A compound MX2 is formed from the M²+ and X ions. The compound contains 86.8% of X by mass. In a…

A: a) Given that,molecular formula of the given =  MX2 The percentage of X in the compound= 86.8% In a…

Q: A crystal of the mineral pharmacosiderite, Fe3(AsO4)2(OH)3•5H2O, contains what percent of  oxygen by…

A: The molecular formula of the crystal pharmacosiderite is = Fe3(AsO4)2(OH)3•5H2O One molecule of the…

Q: Even though lead is toxic, lead compounds were used in ancient times as white pigments in cosmetics.…

A:

Q: Sulfuric acid is made in a three-step process: (1) the combustion of elemental sulfur to produce…

A:

Q: Write a balanced chemical equation based on the following description: the reaction of gaseous C₅H₄…

A: The reactants given are  1) gaseous C5H4 i.e C5H4 (g) 2) Oxygen gas i.e O2 (g) And the 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: What mass of HCl in grams is neturalized by a dose of milk of magnesia containing 3.26g Mg(OH)2?

A: Given :- mass of Mg(OH)2 = 3.26 g  To calculate :- mass of HCl (in g)

Q: A sample of NaCr(SO₂)₂.10H₂O was heated in a crucible, yielding 1.27 g of the corresponding…

A: The molar mass of NaCr(SO4)2 is = 267 g/mol The molar mass of H2O is = 18.0 g The mass of NaCr(SO4)2…

Q: Let's say you are working in a laboratory with a group and you are the only student who has taken…

A: According to given information, Mass of unknown hydrate CoCl2. XH2O = 33.92 g - 32.27 g = 1.65  g…

Q: Calculate the mass (in grams) of 8.336 x 10^16 molecules of Ca5(PO4)3(OH) (Hydroxyapatite)

A: We have been given 8.336 x 1016 molecules of hydroxyapatite.and we have been asked to calculate the…

Q: (a) Based on the following equation, calculate the mass of calcium phosphate required to produce…

A:

Q: In an experiment, 34.8243g of copper (II) nitrate hydrate, Cu(NO3)2•zH2O was heated to a constant…

A: Given, mass of copper (II) nitrate hydrate is 34.8243g and when heated the mass is 27.0351g.

Q: When a sample of solid potassium chlorate is heated strongly, a decomposition reaction occurs. Solid…

A: Mole is calculated by dividing the given mass with molecular mass. When a sample of solid potassium…

Q: 4. Complete, formulate, and balance the following equations: (a) Calcium chloride + lead(II) nitrate…

A: All the above given reactions are double displacement  reaction i.e neutralization and precipitation…

Q: How many grams of nickel(II) nitrate are needed to produce 35.7 g nickel(II) phosphate in the…

A: Given data, mass of nickel(II) phosphate = 35.7 g, molar mass of nickel(II) phosphate=366.02 g mol-1…

Q: Gypsum, CaSO4 · 2 H2O, is used to manufacture cement. What is the mass percent of water in this…

A: Given :-  molecular formula of gypsum =  CaSO4 · 2 H2O  To calculate :-  mass percent of water in…

Q: (a) How many moles of ammonium ions are in 0.642 g of ammonium carbonate? 8.04e21 X mol (b) What is…

A: We have to calculate the required quantities.

Q: (b) Reaction between carbon monoxide and hydrogen produced methanol as the only product. (i) Write a…

A: First we will write balanced chemical equation, then using stoichiometric calculations, find the…

Q: A mixture of CuSO4 · 5H2O and MgSO4 · 7H2O is heated until all the water is lost. If 5.047 g of the…

A: A mixture of CuSO4·5H2O & MgSO4·7H2O is heated until all the water is lost. 5.047 g of the…

Q: 7. Elemental phosphorus is produced by the reaction, 2 Ca3(PO4)2 + 6 SiO₂ + 10 C6 CaSiO3 + 10 CO +…

A: The given reaction is 2Ca3(PO4)2 +6SiO2 +10C→ 6 CaSiO3 +10 CO+P4 moles of Ca3(PO4)2 = 9.00 moles…

Q: Name each ionic compound: (a) NaHCO 3, the active ingredient in baking soda; (b) Al 2(SO 4) 3, an…

A: While naming an ionic compound, first name the cation followed by anion.

Q: Calamine is a naturally occurring zinc silicate that contains the equivalent of 67.5% zinc oxide,…

A: Using mole concept we can easily determine how much reactants  is used or composition of elements in…

Q: Identify each of the following substances as an electrolyte or a nonelectrolyte and predict which…

A: A substance is an electrolyte when it dissociate into ions when dissolved in water and these ions…

Q: Reaction between carbon monoxide and hydrogen produced methanol as the only product.  (i)…

A:

Q: What is the mass percentage of Na in Na2SO3?

A: To calculate the mass percent of an element in a compound, we divide the mass of the element in 1…

Q: d) For the reaction of hydrocarbons in oxygen, C5H12(1) + O2(g) → CO2(g) + H₂O(g) CH3OCH3(g) + O2(g)…

A: A balanced chemical equation contain equal number of atoms of each elements on both sides of the…

Q: 5. What is the theoretical yield of MgO from the combustion of 5.25 x1023 atoms of Mg and 4.69 ×1023…

A: Given that: number of atoms of Mg = 5.25×1023 atoms number of atoms of O2 = 4.69×1023 atoms To find,…

Q: 2) When 4.68 g of iron is reacted with excess oxygen, 6.70 g of product is obtained. Determine the…

A: The concentration of any solution can be given by normality. molality and molarity. For a solution…

Q: What is the mass (in grams) of 5.03*10^22 molecules of CO2 molecules?

A: 1 mole = 6.0226 x 1023 Molar mass of CO2 = 44.01 g/mol Given that: Number of molecules of CO2 = 5.03…

Q: When potassium chlorate is subjected to high temperatures, it decomposes into potassium chloride and…

A:

Q: MgSO, zH2O, is heated to 250 °C, all the water of hydration is lost. OH Heatinga MgSO, remains. How…

A:

Q: Mg(OH)2(s)+2HNO3(aq)→   the balanced chemical formula?

A: Above reaction is double displacement reaction i.e neutralization reaction.

Q: Phosphoric acid, one of the acids used in some cola drinks, is produced by the reaction of…

A: a) The given compound is phosphorous (V) oxide. This suggests that the oxidation state of…

Q: 1) A sample of blue crystals of copper (1I) sulfate pentahydrate was heated to produce the…

A: Copper(II) sulfate consists of five water molecules (pentahydrate) which on heating loses one water…

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.