Draw a picture on the particle level that depicts a LiF formula unit dissolved in water....
Draw a picture on the particle level that depicts a LiF formula unit dissolved in water.
Explain how to make 500.mL of 0.20M CuSO4 solution. (include all steps and calculations)
Is there a difference in concentration if you dissolve 40.0g of NaOH in 1.0L of water and dissolving same mass in enough water to make 1.0L of solution? Justify your answer.
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Draw a picture on the particle level that depicts a LiF formula
unit dissolved in water....
When a metallic hydroxide is dissolved in water the hydroxide ion concentration depends upon the formula...
When a metallic hydroxide is dissolved in water the hydroxide ion concentration depends upon the formula of the metallic hydroxide. When completely dissociated, the hydroxide ion concentration will be the concentration of the whole compound times the number of hydroxide ions units in the formula. 1. Calculate the concentration of hydroxide ions and hydronium ions in the following basic solutions: (a) A solution prepared by dissolving 200 g of magnesium hydroxide in enough water to make 4.00 L of solution....
A chemist dissolved 65.353 grams of CuSO4 * 5H2O into enough water to make 150.0 mL...
A chemist dissolved 65.353 grams of CuSO4 * 5H2O into enough water to make 150.0 mL of aqueous CuSO4 solution. (a) Calculate the concentration of this solution, in molarity. (b) What is the normality of the Cu2+ ions in the above solution? (c) He then reacted the above CuSO4 solution with some 0.225 M KI solution. The reaction occurs as follows: 2 CuSO4 (aq) + 4 KI (aq) à 2 CuI (s) + I2 (aq) + 2 K2SO4 (aq)...
A sample of oxalic acid (a diprotic acid of the formula H2C2O4) is dissolved in enough...
A sample of oxalic acid (a diprotic acid of the formula H2C2O4) is dissolved in enough water to make 1.00 L of solution. A 100.0 mL sample of this solution is titrated with a solution of sodium hydroxide of concentration 0.750 M and requires 20.0 mL of sodium hydroxide to reach the end point. Calculate the mass of the original oxalic acid sample.
a. A student dissolved 20.00 g of Na2SO4 in enough water to make 250 mL of stock solution. How many mL of the stock solu...
a. A student dissolved 20.00 g of Na2SO4 in enough water to make 250 mL of stock solution. How many mL of the stock solution would the student need to use in order to make a 150 mL of 0.100 M solution? b. In an acid-base titration, 82.56 mL of 0.175 M NaOH titrant reacts with 100.0 mL of an unknown concentration of HCl solution. What is the density of the HCl solution?
14. When 10.0 grams of Na2S04 is dissolved to 500. mL with water: c. What is...
14. When 10.0 grams of Na2S04 is dissolved to 500. mL with water: c. What is the molarity of sodium sulfate? d. What is the molarity of sodium ion in the solution? e. What is the molarity of sulfate ion in the solution? 15. You want to perform a chemical reaction and you need 15.0 grams of silver for the reaction to produce the desired yield of product. How much of a 0.75 M silver nitrate solution will you need...
1.) 4.00 g of NaOH are dissolved in water to make 5.00 L of solution. What...
1.) 4.00 g of NaOH are dissolved in water to make 5.00 L of solution. What is the concentration of hydronium ions, [H3O+], in this solution? Express your answer with the appropriate units. 2.) If you wanted to determine how much KOH (potassium hydroxide; a strong base) was dissolved in water, you could titrate it with a known amount of KHP (potassium hydrogen phthalate; a weak acid) until a color change indicates that the base is completely neutralized. The molecular...
1. Write the formula (or definition) in letters first, rearrange if needed to isolate the variable...
1. Write the formula (or definition) in letters first, rearrange if needed to isolate the variable for which you are solving, then substitute in the numbers. Remember significant figures and units! A. A solution was made by dissolving 32.0 grams of sucrose in 150.0 grams of water. Find the m/m %. B. An experiment required a 2.0% (m/v) NaBr solution. If a student measures a 25.0 mL sample of this solution, how many grams of NaBr will the solution contain?...
please define a formula unit in your explanation. What does 3.3 *10^24 forumla units of silver...
please define a formula unit in your explanation. What does
3.3 *10^24 forumla units of silver phosphate mean? I know that a
formula unit is the ratio of the ions in an ionic compound but how
ido you apply 3.3*10^24?
2. Use the information in the answers you obtained in question number one as necessary to answer the following questions. a. Determine the number of moles in 3.3 x 10-4 formula units of silver phosphate. b. Determine the mass of...
Chem200 Haggard Homework Problems Composition of Substances and Solutions 1. When 28.Ograms of CO is analyzed, it...
Chem200 Haggard Homework Problems Composition of Substances and Solutions 1. When 28.Ograms of CO is analyzed, it is found to contain 12.0g of carbon and 16.0g of oxveen. How much carbon and how much oxygen would be found in 100.0g of CO2 2. A sample of a compound is found to contain 40.0g of calcium, 71.0g of chlorine, 4.0g of hydrogen, and 32.0g of oxygen. How much of each element would be needed to make 750.0g of this compound? 3....
please answer these questions are based off the sheet with the short procedure Question 1 What...
please answer these
questions are based off the sheet with the short
procedure
Question 1 What are the two substances and their quantities (mass for solids, volumes and concentrations for solutions) placed in the calorimeter for Reaction A? Concentration (if Formula Amount (include units!) needed; write N/A for pure substances) Substance 1 Substance 2 D Question 2 What are the two substances and their quantities (mass for solids, volumes and concentrations for solutions) placed in the calorimeter for Reaction B?...
When a metallic hydroxide is dissolved in water the hydroxide ion concentration depends upon the formula of the metallic hydroxide. When completely dissociated, the hydroxide ion concentration will be the concentration of the whole compound times the number of hydroxide ions units in the formula. 1. Calculate the concentration of hydroxide ions and hydronium ions in the following basic solutions: (a) A solution prepared by dissolving 200 g of magnesium hydroxide in enough water to make 4.00 L of solution....
14. When 10.0 grams of Na2S04 is dissolved to 500. mL with water: c. What is the molarity of sodium sulfate? d. What is the molarity of sodium ion in the solution? e. What is the molarity of sulfate ion in the solution? 15. You want to perform a chemical reaction and you need 15.0 grams of silver for the reaction to produce the desired yield of product. How much of a 0.75 M silver nitrate solution will you need...
1. Write the formula (or definition) in letters first, rearrange if needed to isolate the variable for which you are solving, then substitute in the numbers. Remember significant figures and units! A. A solution was made by dissolving 32.0 grams of sucrose in 150.0 grams of water. Find the m/m %. B. An experiment required a 2.0% (m/v) NaBr solution. If a student measures a 25.0 mL sample of this solution, how many grams of NaBr will the solution contain?...
please define a formula unit in your explanation. What does
3.3 *10^24 forumla units of silver phosphate mean? I know that a
formula unit is the ratio of the ions in an ionic compound but how
ido you apply 3.3*10^24?
2. Use the information in the answers you obtained in question number one as necessary to answer the following questions. a. Determine the number of moles in 3.3 x 10-4 formula units of silver phosphate. b. Determine the mass of...
Chem200 Haggard Homework Problems Composition of Substances and Solutions 1. When 28.Ograms of CO is analyzed, it is found to contain 12.0g of carbon and 16.0g of oxveen. How much carbon and how much oxygen would be found in 100.0g of CO2 2. A sample of a compound is found to contain 40.0g of calcium, 71.0g of chlorine, 4.0g of hydrogen, and 32.0g of oxygen. How much of each element would be needed to make 750.0g of this compound? 3....
please answer these
questions are based off the sheet with the short
procedure
Question 1 What are the two substances and their quantities (mass for solids, volumes and concentrations for solutions) placed in the calorimeter for Reaction A? Concentration (if Formula Amount (include units!) needed; write N/A for pure substances) Substance 1 Substance 2 D Question 2 What are the two substances and their quantities (mass for solids, volumes and concentrations for solutions) placed in the calorimeter for Reaction B?...
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