Homework Answers
Add Answer to:
4,5,6 plz!
4 Bungle has a 5M solution of NaOH. He wants to make 500mL of...
8-55 d. 10.0 g KOH, 425 mL JUIULUI For each of the following NaOH solutions, the...
8-55 d. 10.0 g KOH, 425 mL JUIULUI For each of the following NaOH solutions, the volume of the solution and its molarity are given. Calculate the number of moles of NaOH present in each solution. a. 1.35 L solution, 0.300 M b. 0.800 L solution. 0.100 M c. 875 mL solution, 0.600 M M0000 d. 125 mL solution, 0.125 MOTO 1 the volume 2 III 8-57 Calculate the number of grams of NaOH needed to prepare each of the...
1. Calculate how many milliliters (mL) of 2 M NaOH will be needed to make 0.50 L of a 0.2 M aqueous NaOH solution....
1. Calculate how many milliliters (mL) of 2 M NaOH will be needed to make 0.50 L of a 0.2 M aqueous NaOH solution. 2. You will use a weighted amount of KHP (a weak acid) to standardize your ~ 0.2 M NaOH solution. Assuming that you made exactly 0.2 M NaOH, calculate how many grams of KHP will react with exactly 15 mL of 0.2 M NaOH. Use the information below to help answer this question: _C02 K+ CO2...
A titration of vinegar with a solution of NaOH was performed. If 3.35 mL of vinegar...
A titration of vinegar with a solution of NaOH was performed. If 3.35 mL of vinegar needs 45.0 mL of 0.135 M NaOH to reach the equivalence point in a titration CH3COOH(aq)+NaOH(aq)→H2O(l)+NaC2H3O2(aq) Part A: Calculate the mass of acetic acid present in the vinegar sample? Part B: How many grams of acetic acid are in each mL of vinegar? Part C:How many grams of acetic acid would be in a 1.60 qt sample of this vinegar? Part D: How many...
Bob wants to make 750 mL of a .250 M sodium carbonate solution. What volume of...
Bob wants to make 750 mL of a .250 M sodium carbonate solution. What volume of a 3.50 M stock solution of sodium carbonte should he dilue to 750 mL? How many moles of Na+ are in the 750 mL of diluted solution?
As part of Lab 11 you will make and standardize a solution of NaOH(aq). Suppose in the lab you measure the solid NaOH an...
As part of Lab 11 you will make and standardize a solution of NaOH(aq). Suppose in the lab you measure the solid NaOH and dissolve it into 100.0 mL of water. You then measure 0.1993 g of KHP (204.22 g/mol) and place it in a clean, dry 100-mL beaker, and then dissolve the KHP in about 25 mL of water and add a couple of drops of phenolphthalein indicator. You titrate this with your NaOH(aq) solution and find that the...
a) How many moles of Al2(SO4)3 are required to make 44 mL of a 0.090 M Al2(SO4)3 solution? (Hint, molarity is moles per...
a) How many moles of Al2(SO4)3 are required to make 44 mL of a 0.090 M Al2(SO4)3 solution? (Hint, molarity is moles per liter. You know the molarity. You are given the number of mL's, which can be converted to liters. Just set it up so the units cancel and you get "moles".) moles Al2(SO4)3 b) What is the molecular weight of Al2(SO4)3, to the nearest gram? grams c) What mass of Al2(SO4)3 is required to make 44 mL of...
can someon help with these questions To make a standard NaOH solution, about 13 mL of...
can someon help with these questions
To make a standard NaOH solution, about 13 mL of 3 M NaOH is mixed with about 300 mL of deionized water (H2OD) in a 500 ml beaker. Why is it not necessary to know the exact volumes of NaOH and H2OD? a b. It isn't necessary to know more than 1 significant digit As a standard solution, the NaOH solution will only need an approximate molarity. The NaOH solution will be further diluted...
is the pH and pOH of the acid solution with [H'] = 0.38 M? What is...
is the pH and pOH of the acid solution with [H'] = 0.38 M? What is the [H30") and TOH concentration of an acid solution with pH = 5.5? 3. How many liters of 0.186 M of NaOH(aq) contain 0.135 mol of NaOH? If 0.123 g NaOH is dissolved in enough water to make 250.0 mL of solution, what is the molarity (M) of the sodium hydroxide solution? If 2.00 mL of 0.456 M NaOH is diluted to exactly 100...
Questions 3, 4, & 5 pls (3) You will titrate a solution of an unknown acid...
Questions 3, 4, & 5 pls
(3) You will titrate a solution of an unknown acid (HX(aq)) by adding NaOH(aq). Suppose that 25 mL of 0.5 M NaOH(aq) is needed to reach the equivalence point. How many moles of HX were present initially? Show the calculation. (4) You will titrate acid solutions by adding 0.2-0.3-mL or 2-3-mL portions of NaOH(aq). When should you add the smaller volume? (5) The concentration of an aqueous solution of NaOH cannot be accurately determined...
Just answer part 2 and 3 please (0.3 point) Part 1 ii See Periodic TableSee Hint A solution is created by dissolving 12.5 grams of ammonium chloride in enough water to make 355 mL of solution. How ma...
Just answer part 2 and 3 please
(0.3 point) Part 1 ii See Periodic TableSee Hint A solution is created by dissolving 12.5 grams of ammonium chloride in enough water to make 355 mL of solution. How many moles of ammonium chloride are present in the resulting solution? moles of NH4CI 0.233 When chemists work with solid materials, we simply weigh out amounts of solid reagents and calculate mole amounts when thinking about stoichiometry. However, when we dissolve a solid...
8-55 d. 10.0 g KOH, 425 mL JUIULUI For each of the following NaOH solutions, the volume of the solution and its molarity are given. Calculate the number of moles of NaOH present in each solution. a. 1.35 L solution, 0.300 M b. 0.800 L solution. 0.100 M c. 875 mL solution, 0.600 M M0000 d. 125 mL solution, 0.125 MOTO 1 the volume 2 III 8-57 Calculate the number of grams of NaOH needed to prepare each of the...
1. Calculate how many milliliters (mL) of 2 M NaOH will be needed to make 0.50 L of a 0.2 M aqueous NaOH solution. 2. You will use a weighted amount of KHP (a weak acid) to standardize your ~ 0.2 M NaOH solution. Assuming that you made exactly 0.2 M NaOH, calculate how many grams of KHP will react with exactly 15 mL of 0.2 M NaOH. Use the information below to help answer this question: _C02 K+ CO2...
a) How many moles of Al2(SO4)3 are required to make 44 mL of a 0.090 M Al2(SO4)3 solution? (Hint, molarity is moles per liter. You know the molarity. You are given the number of mL's, which can be converted to liters. Just set it up so the units cancel and you get "moles".) moles Al2(SO4)3 b) What is the molecular weight of Al2(SO4)3, to the nearest gram? grams c) What mass of Al2(SO4)3 is required to make 44 mL of...
can someon help with these questions
To make a standard NaOH solution, about 13 mL of 3 M NaOH is mixed with about 300 mL of deionized water (H2OD) in a 500 ml beaker. Why is it not necessary to know the exact volumes of NaOH and H2OD? a b. It isn't necessary to know more than 1 significant digit As a standard solution, the NaOH solution will only need an approximate molarity. The NaOH solution will be further diluted...
is the pH and pOH of the acid solution with [H'] = 0.38 M? What is the [H30") and TOH concentration of an acid solution with pH = 5.5? 3. How many liters of 0.186 M of NaOH(aq) contain 0.135 mol of NaOH? If 0.123 g NaOH is dissolved in enough water to make 250.0 mL of solution, what is the molarity (M) of the sodium hydroxide solution? If 2.00 mL of 0.456 M NaOH is diluted to exactly 100...
Questions 3, 4, & 5 pls
(3) You will titrate a solution of an unknown acid (HX(aq)) by adding NaOH(aq). Suppose that 25 mL of 0.5 M NaOH(aq) is needed to reach the equivalence point. How many moles of HX were present initially? Show the calculation. (4) You will titrate acid solutions by adding 0.2-0.3-mL or 2-3-mL portions of NaOH(aq). When should you add the smaller volume? (5) The concentration of an aqueous solution of NaOH cannot be accurately determined...
Just answer part 2 and 3 please
(0.3 point) Part 1 ii See Periodic TableSee Hint A solution is created by dissolving 12.5 grams of ammonium chloride in enough water to make 355 mL of solution. How many moles of ammonium chloride are present in the resulting solution? moles of NH4CI 0.233 When chemists work with solid materials, we simply weigh out amounts of solid reagents and calculate mole amounts when thinking about stoichiometry. However, when we dissolve a solid...
Most questions answered within 3 hours.
-
You purchase your daily coffee at the Chemist’s Coffeehouse and
have a choice of two cups:...
asked 1 hour ago -
Which of the following pairs of chemicals could be used to make
a buffer solution?
A.)...
asked 1 hour ago -
Problem 16-51 Sales
Activity Variance (LO 16-3)Odessa, Inc., reports the following
information concerning operations for the...
asked 1 hour ago -
Pictured on the right are thee point charges Q1 = 18.4 μC, Q2 =
-30.6 μC,...
asked 1 hour ago -
A graduate student is conducting research in psychology and
needs to obtain the IQ scores of...
asked 2 hours ago -
R2.84: There are 2 defective products in a production lot of 10.
An inspector randomly selected...
asked 3 hours ago -
Consider the following equilibrium system: COCl2(g) CO(g) +
Cl2(g) A 10.00 L evacuated flask is filled...
asked 4 hours ago -
1) What are the two distinct steps that one needs to perform
when developing a data...
asked 4 hours ago -
2) Write a C++ program that uses a class called “Degree” to
obtain the trigonometric
values...
asked 5 hours ago -
1. In eukaryotic cells the genomes of
&
asked 5 hours ago -
The standard enthalpy of propanol (C3H7OH) is -303.0 kJ/mol.
Compute both of the
gross and net...
asked 5 hours ago -
Why PWM using H-bridge for control motor speed is more power
effiecient than the linear amplifier...
asked 5 hours ago