A major source of boron is the mineral kernite, Na2[B4O5(OH)4]⋅3H2O. Calculate how many grams of boron...
A major source of boron is the mineral kernite, Na2[B4O5(OH)4]⋅3H2O.
Calculate how many grams of boron can be produced from 1600 kg of a kernite-bearing ore if the ore contains 0.98% kernite by mass and the process has a 70% yield.
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A major source of boron is the mineral kernite,
Na2[B4O5(OH)4]⋅3H2O.
Calculate how many grams of boron...
Lead can be extracted from a mineral call galena(PbS). An ore contains 3.4% galena by mass. How many kg of ore is neede...
Lead can be extracted from a mineral call galena(PbS). An ore contains 3.4% galena by mass. How many kg of ore is needed if you want to extract 100. grams of lead?
1.How many grams of glucose (C6H12O6) are produced if 17.3 mol of H2O are reacted according...
1.How many grams of glucose (C6H12O6) are produced if 17.3 mol of H2O are reacted according to this balanced chemical equation? 6CO2 + 6H2O → C6H12O6 + 6O2 2. Nitroglycerin [C3H5(ONO2)3] is made by reacting nitric acid (HNO3) with glycerol [C3H5(OH)3] according to this reaction: C3H5(OH)3 + 3HNO3 → C3H5(ONO2)3 + 3H2O If 87.4 g of HNO3 is reacted with excess glycerol, what mass of nitroglycerin can be made? 3. Precipitation reactions, in which a solid (called a precipitate) is...
1. Many important metals occur as sulfide, arsenide, and antimonide minerals, especially in the Sudbury mineral...
1. Many important metals occur as sulfide, arsenide, and antimonide minerals, especially in the Sudbury mineral complex. The first step in processing these ores involves “roasting” the ore in air to produce the metal or metal oxide, along with nonmetal oxides that can be serious pollutants if not trapped. Suppose that you roast 2.00 kg of the mineral marcasite, FeS2. The balanced equation for the reaction is: 4 FeS2 + 11 02 → 2 Fe2O3 + 8 SO2 (a) How...
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16. How many grams of steam and iron must react to produce 375 g of magnetic iron oxide, Fe3O4? 3 Fe(s) + 4 H2O(g) Fe3O4(s) + 4 H2(g) 18. Mercury can be isolated from its ore by the reaction 4 HgS + 4 CaO → 4 Hg + 3 CaS + CaSO4 (a) How many moles of CaS are produced from 2.5 mol CaO? (b) How many grams of Hg are produced along with 9.75 mol of CaSO4? (c) How many...
How many grams of calcium phosphate can be produced from 5.00 grams of calculate hydroxide according...
How many grams of calcium phosphate can be produced from 5.00 grams of calculate hydroxide according to the following equation? Ca(OH)_2 (aq) + H_3 PO_4 (aq) rightarrow H_2 O_(l) + Ca(PO_4)_2 (s)
1. In the reaction between glucose and oxygen below, how many grams of glucose is required...
1. In the reaction between glucose and oxygen below, how many grams of glucose is required to produce 12.2 L of carbon dioxide if the density of Carbon dioxide is 1.26 g/L, C2H5OH, is 0.789g/mL. C6H12O6(s) + 6 O2(g) = 6 CO2(g) +6 H2O 2. When 10.6 g of boron trichloride is reacted with water, 5.12 g of Hydrochloric acid is produced. Using the following balanced equation, calculate the percent yield for HCl for the reaction? (BCl3 = 117.17 g/mol,...
How many grams of Na2CO3 are needed to prepare 25.0 mL of a 2.00%(m/v) Na2 CO3...
How many grams of Na2CO3 are needed to prepare 25.0 mL of a 2.00%(m/v) Na2 CO3 solution? 8-49 8-86 Assume that you have identical volumes of two liquids; the first is 0.3 M glucose solution and the second is 0.1 M glucose solution. Based on the diagrams in Problem 8-85, where red is the 0.3 M glucose and blue is the 0.1 M CEglucose, which one of the diagrams best represents the two liquids after they have stood uncovered for...
(Q#1) Hydroxyapatite has the formula Ca5(PO4)3(OH) and is the main mineral component of dental enamel and...
(Q#1) Hydroxyapatite has the formula Ca5(PO4)3(OH) and is the main mineral component of dental enamel and bone, and encourages bone growth when placed as bone graft. Hydroxyapatite is prepared from aqueous acid and dilute calcium hydroxide solution. If you mix 115 g of 80.2 % by mass phosphoric acid solution with 74.8 g of calcium hydroxide, what mass in g of hydroxypatite is formed assuming the reaction goes to completion? (Q#2) Seratonin is a chemical neurotransmitter in the brain and...
DATE 1. How many moles of Na are there in 47.3 g of Na? 2. Calculate...
DATE 1. How many moles of Na are there in 47.3 g of Na? 2. Calculate the number of grams of sulfur in 112.4 moles of sulfur. 3. Calculate number of atoms in 4.6 g of calcium. 4. How many H atoms are in 272.5 g of methanol, CH0? 5. For the given reaction N, (g) +3H,(g)->2NH(g) a. How many moles of NH, are formed by the complete reaction of 0.154 moles of H? b. How many grams of NH,...
Q1 :- For the reaction shown, calculate how many grams of oxygen form when each quantity...
Q1 :- For the reaction shown, calculate how many grams of oxygen form when each quantity of reactant completely reacts. 2HgO(s)→2Hg(l)+O2(g) (C) 1.73 kgHgO (D) 3.60 mgHgO Q2:- For the reaction 2KClO3(s)→2KCl(s)+3O2(g) calculate how many grams of oxygen form when each quantity of reactant completely reacts. You may want to reference (Pages 253 - 256) Section 8.4 while completing this problem. A - 2.66 gKClO3 B- 0.400 gKClO3 C- 80.0 kgKClO3 D- 20.8 mgKClO3 Q3:- Sulfuric acid can dissolve aluminum...
1. Many important metals occur as sulfide, arsenide, and antimonide minerals, especially in the Sudbury mineral complex. The first step in processing these ores involves “roasting” the ore in air to produce the metal or metal oxide, along with nonmetal oxides that can be serious pollutants if not trapped. Suppose that you roast 2.00 kg of the mineral marcasite, FeS2. The balanced equation for the reaction is: 4 FeS2 + 11 02 → 2 Fe2O3 + 8 SO2 (a) How...
How many grams of calcium phosphate can be produced from 5.00 grams of calculate hydroxide according to the following equation? Ca(OH)_2 (aq) + H_3 PO_4 (aq) rightarrow H_2 O_(l) + Ca(PO_4)_2 (s)
How many grams of Na2CO3 are needed to prepare 25.0 mL of a 2.00%(m/v) Na2 CO3 solution? 8-49 8-86 Assume that you have identical volumes of two liquids; the first is 0.3 M glucose solution and the second is 0.1 M glucose solution. Based on the diagrams in Problem 8-85, where red is the 0.3 M glucose and blue is the 0.1 M CEglucose, which one of the diagrams best represents the two liquids after they have stood uncovered for...
DATE 1. How many moles of Na are there in 47.3 g of Na? 2. Calculate the number of grams of sulfur in 112.4 moles of sulfur. 3. Calculate number of atoms in 4.6 g of calcium. 4. How many H atoms are in 272.5 g of methanol, CH0? 5. For the given reaction N, (g) +3H,(g)->2NH(g) a. How many moles of NH, are formed by the complete reaction of 0.154 moles of H? b. How many grams of NH,...
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