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5. Urea, CO(NH2)2, is manufactured on a large scale for use in producing urea-formaldehyde plastics and...
a mordant is a substance that combines with a dye to produce a stable fixed color...
a mordant is a substance that combines with a dye to produce a stable fixed color in a dyed fabric. Calcium acetate is used as a mordant. It is prepared by the reaction of acetic acid with calcium hydroxide 2CH3CO12H+CA(OH)2 >Ca (CH3CO2)2 +2H2O what mass of Ca(OH)2 is required with the acetic acid in 25.0ml of a solution having a density of 1.065g/ml and containing 58.0%acetic acid by mass
Part A Melamine, C3Ns (NH2)3, is used in adhesives and resins. It is manufactured in a...
Part A Melamine, C3Ns (NH2)3, is used in adhesives and resins. It is manufactured in a two-step process in which urea, CO(NH)2 is the sole starting material, isocyanic acid. HNC0, is an ntermed ate, and ammonia. NHs. and carbon dioxide, CO2. gases are byproducts In the second step of this reaction, isocyanic acid reacts to form melamine and carbon dioxide Balsnce this resction and enter the coefficients below. Enter the coefficients in order separated by commas (e.g, 1,4,5, where 1...
Naphthalene, a hydrocarbon, has an approximate molar mass of 128 g/mole. If the combustion of 64...
Naphthalene, a hydrocarbon, has an approximate molar mass of 128 g/mole. If the combustion of 64 produces 0.3599 g H20 and 2.1977 g CO2, what is the molecular formula of this compound? 3. A mass of 0.4113 g of an unknown acid, HA, is titrated with NaOH. If the acid reacts with 28.10 mL of 0.1055 M NaOH(aq), what is the molar mass of the acid? 4. The amount of calcium in a 15.0-g sample was determined by converting the...
(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...
0/ 1 pts Question 2 During a certain titration, 35.0 mL of 0.175 M aqueous sulfuric...
0/ 1 pts Question 2 During a certain titration, 35.0 mL of 0.175 M aqueous sulfuric acid was required to exactly neutralize 49.0 mL of sodium hydroxide. Determine the molarity of the base. H2SO4 (aq) + 2NaOH(aq) + 2 H2O (0) + Na2SO4 (aq) [balanced] 0.125 M 6.00 x 10 M 0.250 M 0.175 M 0.600 M 2ct Question 6 0/1 pts Calculate the pressure exerted by 5.12 grams of chlorine gas in a 850 mL sealed flask at 27.0°C....
CHM 1210 Final practice Name: Know electrolyte table, 5 solubility rules; 26 polyatomics (name/formula) Write 7...
CHM 1210 Final practice Name: Know electrolyte table, 5 solubility rules; 26 polyatomics (name/formula) Write 7 naturally occurring diatomic molecules (name; formula, phase , charge) Write rite out strong acids and weak acids by name; formula, phase ,charge Write out the molecular, complete, and net-ionic equations for the following reactions The mixing of Cobalt(IlI) chloride and silver nitrate The mixing of acetic acid and sodium hydroxide The mixing of hydrochloric acid and cakcium hydroxide The mixing of barium chloride and...
Part A Melamine, C3Ns (NH2)3, is used in adhesives and resins. It is manufactured in a two-step process in which urea, CO(NH)2 is the sole starting material, isocyanic acid. HNC0, is an ntermed ate, and ammonia. NHs. and carbon dioxide, CO2. gases are byproducts In the second step of this reaction, isocyanic acid reacts to form melamine and carbon dioxide Balsnce this resction and enter the coefficients below. Enter the coefficients in order separated by commas (e.g, 1,4,5, where 1...
Naphthalene, a hydrocarbon, has an approximate molar mass of 128 g/mole. If the combustion of 64 produces 0.3599 g H20 and 2.1977 g CO2, what is the molecular formula of this compound? 3. A mass of 0.4113 g of an unknown acid, HA, is titrated with NaOH. If the acid reacts with 28.10 mL of 0.1055 M NaOH(aq), what is the molar mass of the acid? 4. The amount of calcium in a 15.0-g sample was determined by converting the...
0/ 1 pts Question 2 During a certain titration, 35.0 mL of 0.175 M aqueous sulfuric acid was required to exactly neutralize 49.0 mL of sodium hydroxide. Determine the molarity of the base. H2SO4 (aq) + 2NaOH(aq) + 2 H2O (0) + Na2SO4 (aq) [balanced] 0.125 M 6.00 x 10 M 0.250 M 0.175 M 0.600 M 2ct Question 6 0/1 pts Calculate the pressure exerted by 5.12 grams of chlorine gas in a 850 mL sealed flask at 27.0°C....
CHM 1210 Final practice Name: Know electrolyte table, 5 solubility rules; 26 polyatomics (name/formula) Write 7 naturally occurring diatomic molecules (name; formula, phase , charge) Write rite out strong acids and weak acids by name; formula, phase ,charge Write out the molecular, complete, and net-ionic equations for the following reactions The mixing of Cobalt(IlI) chloride and silver nitrate The mixing of acetic acid and sodium hydroxide The mixing of hydrochloric acid and cakcium hydroxide The mixing of barium chloride and...
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