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Component Ca(OH)2 Water Mass Fraction 0.583 0.417 Total Mass (kg/s) 0.454 0.325 0.779 Ca(OH)2 solubility is...
At 25oC, 0.800g of Ca(OH)2(s) will dissolve in 104.7 mL of water. Write the equation for...
At 25oC, 0.800g of Ca(OH)2(s) will dissolve in 104.7 mL of water. Write the equation for the dissociation of Ca(OH)2(s) in water. Calculate the molar solubility, in mol L–1, of Ca(OH)2(s) in water at 25oC.
1. What effect does a common ion have on the solubility of Ca(OH)2(s)? 2. Prove that...
1. What effect does a common ion have on the solubility of Ca(OH)2(s)? 2. Prove that the no. of moles of NaHCO3 µ (T2‑T1) and the no. of moles of NaOH µ (2T1‑T2). 3. What is the main source of carbonate alkalinity and explain how is it produced? 4. Would you expect the carbonate alkalinity to be higher or lower for temporary hard rather than permanently hard water? Explain your answer. Please help me with questions.
Part A and Part B. Also question #3-post lab. (its circled) A. Molar Solubility and Solubility Product of Calcium Hydroxide Trial I Trial 3 Trial 2 25.0 1. Volume of saturated Ca(OH), solution (m...
Part A and Part B.
Also question #3-post lab. (its circled)
A. Molar Solubility and Solubility Product of Calcium Hydroxide Trial I Trial 3 Trial 2 25.0 1. Volume of saturated Ca(OH), solution (mL) 2. Concentration of standardized HCl solution (molU/L) 3. Buret reading, initial (mL 4. Buret reading, final (mL) 5. Volume of HCI added (mL) 6. Moles of HCI added (mol) 7. Moles of OH" in saturated solution (mol) 8. (OH1, equilibrium (mol/L) 9. (Ca2 ], equilibrium (mol/L)...
3) Calcium hydride, Call, reacts with water to fomm lydrogen gas: CaH2 (s) +2 H2O (l)-Ca(OH)2...
3) Calcium hydride, Call, reacts with water to fomm lydrogen gas: CaH2 (s) +2 H2O (l)-Ca(OH)2 (aq) + 2 H2 (g) This reaction is sometimes used to inflate life rafts, weather balloons, and the like, when a simple, compact means of generating H is desired. How many gram generate 145 L of H2 gas if the pressure of He is 825 torr at 21°C? s of CalH are needed to
Water is the working fluid in an ideal regenerative Rankine cycle with one open feed water heater, Figure 2. Upstream of the high pressure turbine superheated vapour with a mass flow rate of 90 kg/s...
Water is the working fluid in an ideal regenerative Rankine cycle with one open feed water heater, Figure 2. Upstream of the high pressure turbine superheated vapour with a mass flow rate of 90 kg/s entres the first-stage turbine at a pressure of 14 MPa Each turbine stage has an isentropic efficiency of 90%. The temperature of the inlet vapour is 520°C. The steam expands through the first-stage turbine to a pressure of 0.9MPa where some of the steam is...
Process 2 CSTR Using the same CSTR process from week 3's worksheet: Stream 1: A Mass...
Process 2 CSTR Using the same CSTR process from week 3's worksheet: Stream 1: A Mass flow - 100 kg/h Molecular mass = 16 Volumetric flow = 5 m/h Stream 2:8 Mass flow 150 kg/h Molecular mass = 20 Volumetric flow = 10 m/h CSTR A and B undergo the following slow reaction: ABC The reaction is first order with respect to A and has a reaction rate (CA) of 1.2 hand the reactor has a total volume of 20...
1 pts Cold water at 10°C flowing a rate of 2 kg/s is heated to 35°C...
1 pts Cold water at 10°C flowing a rate of 2 kg/s is heated to 35°C inside a heat exchanger by saturated steam. The steam enters the heat exchanger as saturated vapor at 100 kPa and leaves as saturated liquid at the same pressure. The heat exchanger losses heat at a rate of 20 KW. The mass flow rate of the steam is most nearly: 0.185 0.101 0.748 0.548 0.312 0.243 0.443 0.085
clo0 Molor Mass of water 18gmol 0.90849 009 146 - 0:00516 mole 0.0958g - 0.0053amole 188...
clo0 Molor Mass of water 18gmol 0.90849 009 146 - 0:00516 mole 0.0958g - 0.0053amole 188 0,00586mol 5.86X103mol/g 0,00SIomal 0,0 Complete the following table. Show sample calculations for * and ** on next page. [3 pts] 6. Table 11-7 Calculation of Stoichiometric Mole Ratios within the Unknown Compound C20,2- Fen+ K* H20 Moles of component per one gram of compound Mass of component per Fes 1.007 one gram of compound All moles divided by the lowest number of moles Whole...
A. Classify each of the following reactions as decomposition, combination, combustion, 2CH3OH(l)+3O2(g)→2CO2(g)+4H2O(g) 2KClO3(s)→2KCl(s)+3O2(g) S(s)+3F2(g)→SF6(g) CaO(s)+H2O(l)→Ca(OH)2(aq) 2Cu(NO3)2(s)→2CuO(s)+4NO2(g)+O2(g)...
A. Classify each of the following reactions as decomposition, combination, combustion, 2CH3OH(l)+3O2(g)→2CO2(g)+4H2O(g) 2KClO3(s)→2KCl(s)+3O2(g) S(s)+3F2(g)→SF6(g) CaO(s)+H2O(l)→Ca(OH)2(aq) 2Cu(NO3)2(s)→2CuO(s)+4NO2(g)+O2(g) B. Solid aluminum metal and diatomic chlorine gas react spontaneously to form a solid product. Give the balanced chemical equation (including phases) that describes this reaction. Indicate the phases using abbreviation (s), (l), or (g) for solid, liquid, or gas, respectively. Express your answer as a chemical equation. C. When heated, solid copper(II) carbonate decomposes to solid copper(II) oxide and carbon dioxide gas. Give...
Unknown sample no. C Trial I Trial 2 1. Mass of 2. Mass of generator + sample before reaction () ...
help
with remaining calculations please
Unknown sample no. C Trial I Trial 2 1. Mass of 2. Mass of generator + sample before reaction () 3. Inst s approval of apparatus C. Determination of Vol ume, Temperature, and Pressure of the Carbon Dioxide Gas 1. Initial reading of volume of water in CO.-collecting graduated cylinder (mL) 2. Final reading of volume of water in CO-collecting graduated cylinder (mL) 3. Volume of CO,(g) collected (L) 4. Temperature of water C) 5....
Part A and Part B.
Also question #3-post lab. (its circled)
A. Molar Solubility and Solubility Product of Calcium Hydroxide Trial I Trial 3 Trial 2 25.0 1. Volume of saturated Ca(OH), solution (mL) 2. Concentration of standardized HCl solution (molU/L) 3. Buret reading, initial (mL 4. Buret reading, final (mL) 5. Volume of HCI added (mL) 6. Moles of HCI added (mol) 7. Moles of OH" in saturated solution (mol) 8. (OH1, equilibrium (mol/L) 9. (Ca2 ], equilibrium (mol/L)...
3) Calcium hydride, Call, reacts with water to fomm lydrogen gas: CaH2 (s) +2 H2O (l)-Ca(OH)2 (aq) + 2 H2 (g) This reaction is sometimes used to inflate life rafts, weather balloons, and the like, when a simple, compact means of generating H is desired. How many gram generate 145 L of H2 gas if the pressure of He is 825 torr at 21°C? s of CalH are needed to
Water is the working fluid in an ideal regenerative Rankine cycle with one open feed water heater, Figure 2. Upstream of the high pressure turbine superheated vapour with a mass flow rate of 90 kg/s entres the first-stage turbine at a pressure of 14 MPa Each turbine stage has an isentropic efficiency of 90%. The temperature of the inlet vapour is 520°C. The steam expands through the first-stage turbine to a pressure of 0.9MPa where some of the steam is...
Process 2 CSTR Using the same CSTR process from week 3's worksheet: Stream 1: A Mass flow - 100 kg/h Molecular mass = 16 Volumetric flow = 5 m/h Stream 2:8 Mass flow 150 kg/h Molecular mass = 20 Volumetric flow = 10 m/h CSTR A and B undergo the following slow reaction: ABC The reaction is first order with respect to A and has a reaction rate (CA) of 1.2 hand the reactor has a total volume of 20...
1 pts Cold water at 10°C flowing a rate of 2 kg/s is heated to 35°C inside a heat exchanger by saturated steam. The steam enters the heat exchanger as saturated vapor at 100 kPa and leaves as saturated liquid at the same pressure. The heat exchanger losses heat at a rate of 20 KW. The mass flow rate of the steam is most nearly: 0.185 0.101 0.748 0.548 0.312 0.243 0.443 0.085
clo0 Molor Mass of water 18gmol 0.90849 009 146 - 0:00516 mole 0.0958g - 0.0053amole 188 0,00586mol 5.86X103mol/g 0,00SIomal 0,0 Complete the following table. Show sample calculations for * and ** on next page. [3 pts] 6. Table 11-7 Calculation of Stoichiometric Mole Ratios within the Unknown Compound C20,2- Fen+ K* H20 Moles of component per one gram of compound Mass of component per Fes 1.007 one gram of compound All moles divided by the lowest number of moles Whole...
help
with remaining calculations please
Unknown sample no. C Trial I Trial 2 1. Mass of 2. Mass of generator + sample before reaction () 3. Inst s approval of apparatus C. Determination of Vol ume, Temperature, and Pressure of the Carbon Dioxide Gas 1. Initial reading of volume of water in CO.-collecting graduated cylinder (mL) 2. Final reading of volume of water in CO-collecting graduated cylinder (mL) 3. Volume of CO,(g) collected (L) 4. Temperature of water C) 5....
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