Which of the following is the least soluble in water? Select one: O a. NaCl (sodium chloride) O b. NH4NO3 (ammonium nitrate) O c. NazCO3 (sodium carbonate) O d. CaSO4 (calcium sulfate)
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- # 3 20 E D The molar solubility of aluminum hydroxide in a water solution is Submit Answer 54 $ 888 R F F4 % 5 Retry Entire Group 9 more group attempts remaining T Cengage Learning Cengage Technical Support F5 G A 6 MacBook Air S F6 Y H & 7 V F7 U * 00 8 ▶11 Values it needed for this question. F8 1 9 K F9 O 1 0 J F10 P M. F11 =Use the References to access important values if needed for this question. A student weighs out a 6.43 g sample of CuF2, transfers it to a 300. mL volumetric flask, adds enough water to dissolve it and then adds water to the 300. mL tick mark. What is the molarity of copper(II) fluoride in the resulting solution? Molarity= M Submit Answer Retry Entire Group 4 more group attempts remaining Cengage Learning Cengage Technical Support Previous Email Instructor Next Save and E1. A solution contains a mixture of Na2CO3 and NaOH. Using phenolphthalein indicator 25 mL of mixture required 19.5 mL of 0.995 M HCl for the endpoint. With methyl orange, 25 mL of solution required 25 mL of the same HCl for the endpoint. Calculate grams per liter of Na2CO3 in the mixture. a.23b.36 c.78 d.112. A 1.2040 g sample containing sodium carbonate and inert material was dissolved in water and titrated to methyl orange end point, requiring 32.50 mL of 0.1020 M HCl. Calculate the %Na2CO4 in the sample. a. 93.36% b. 14.59% c. 12.75% d. 23.41%3. A 0.1510 g KHP (MW = 204.22 g/mol) sample required a volume of 57.04 mL of NaOH solution to reach a phenolphthalein end point. Calculate the molarity of NaOH titrant. a. 0.02593 M b. 0.006481 M c. 0.01296 M d. 0.01012 M
- My D xD Logo X O Mail - X e Regis x Sign X 品 HPE4 X PUF HPE 4 X HPE 4 X now.com/ilrn/takeAssignment/takeCovalentActivity.do?locator=Dassignment-take [Review Topics] [References] Use the References to access important values if needed for this question. The pOH of an aqueous solution of 0.371 M dimethylamine (a weak base with the formula (CH3),NH) is Submit Answer Retry Entire Group 8 more group attempts remainingOWLV2 | On x *: OWLV2 | Ass x * OWLV2 | On x y google- Yal x e Registration x D selfserve.un x n/takeAssignment/takeCovalentActivity.do?locator=assignment-take Use the References to access important values if needed for this question. The molar solubility of lead fluoride in a water solution is M. Submit Answer Retry Entire Group 8 more group attempts remaining W hp3 Solid ammonium bromide is slowly added to 75.0 mL of a 0.283 M silver nitrate solution until the concentration of bromide ion is 0.0583 M. The percent of silver ion remaining in solution is %. Submit Answer $ 4 R F % 5 Use the References to access important values if needed for this question. Retry Entire Group 5 more group attempts remaining T G Cengage Learning | Cengage Technical Support ^ 6 MacBook Pro Y H & 7 U J * 00 8 1 ( 9 K O < ) O L P Previous Email Instructor + = Next Save and Exit
- In standardization of HCl sample with 0.1 M Na2C03 standard solution if we consumed 10 ml HCl to neutralize 10 ml of 0.1 M Na2CO3 :The morality of HCL equals :Select one a. 0.2 M b. 0.05 M c. 0.1 M أخل اختياريGhow to know ion cha X I Welcome to Chemist X M Inbox (1,542) - ljmg9 M Inbox (640) - lorcan. bAnswered: bM Your LON-CAPA Homewo X Bb My Blackboard Cont X X X с access3.lon-capa.illinois.edu/res/uiuc/cyerkes/Chem204/Homework_2/solubility.problem Lorcan James McGrath (Student - section: CQB) СНEM 102BВ/C Fall 2019 Messages Courses Help Logout Main Menu Contents Grades Course Contents » Homework 11 » Homework 11-10 Timer Rank the salts given in the table below from least soluble to most soluble in water. Ksp Ca3(PO4)2 1x10-32 Salt #Name A ZnS В |3х10-22 |РЬСІ2 С |2х10-5 AgI x10-16 BaSO4 2x10-9 least soluble most soluble You must use the Ksp expression: CationcAniona aAnion + cCation [Cation]C [Anion]a Ksp to determine the equilibrium concentrations of the anions and cations. This will tell you the relative solubiites of the salts. You cannot compare Ken Values directly unless the salts dissolve to form the same number of ions in solution. You have entered that answer before…5. An ethanol-water solution is prepared by dissolving 10.0mL of ethanol, C2H5OH (density= 0.789 g/mL), in a sufficient volume of water to produce 100.0mL of a solution with a final density of 0.982g/mL. What is the concentration of this solution, expressed as: A. % (v,v) B. % (m,m) C. % (m,v) D. Mole Fraction E. Molarity F. Molality rol (CoHr(OH)?
- co MOn the othe Every acid B. Gram equiv/L 70. The number of moles of solute per kilogram of solvent is A. Molarity B. Normality . Which of the following factor do not affect solubility of solid solute in liquid ? A. Pressure B. Nature of solute hus for ane 7he co E. molality Acid D. mole C. Temperature D. None of the above HF A 13. The volume of 4N HCI and 10N HCI required to make 1L of 6N HCl are A 0.67 litter of 4N HCl and 0.33 litter of 10N HCI B. 0.80 litter of 4N HCI and 0.20 litter of 10N HCI C. 0.50litter of 4N HCl and 0.50 litter of 10N HCI D. 0.75 litter of 4N HCl and 0.25 litter of 10N HCI HC NH H. A 19. When a solute is added to a pure solvent, the A. vapour pressure of the solution becomes lower than that of the pure solve B. rate of evaporation of the pure solvent is reduced lute does not affect the rate of condensation С. D. rate of evaporation of the solution is equal to the rate of condensation o vapour pressure than that in the case of the pure solvent 620. 4.0 gram…V:YT نقطة واحدة is a group of materials or.. devices required to carry out . experiments apparatus labels carefully assistant هذا السؤال مطلوب öaalg äbäi Calculate the concentration of nitric acid solution with a volume of (2 ml) and a concentration (5M) from a * ? solution of a volume (5 ml) 4M 3M 2M 6M نقطة واحدة The bath contains. . that used in .boiling point experiment : II2. How many grams of acetic acid ( HC,H,O.) is needed to prepare 350ml of a 0.7 M solution of acetic acid ? 3. How many grams of calcium carbonate (CaCO,) are present in 158g of chalk solution, containing 4% CaCO,? 4. How do we prepare 300ml of 9M NH, from 11M solution?