A 0.377-g sample of NaOH pellets (molar mass = 40.00 g/mol) is added to enough water...

Question

Question

A 0.377-g sample of NaOH pellets (molar mass = 40.00 g/mol) is added to enough water to make 250.0 mL of solution. The pH of this solution is:

Select one: a. 11.974 b. 12.576 c. 0.424 d. 1.424

science chemistry

Answer 1

Similar Homework Help Questions

A 0.372-g sample of NaOH(s) is added to enough water to make 250.0 mL of solution....

A 0.372-g sample of NaOH(s) is added to enough water to make 250.0 mL of solution. The pH of this solution is:
#16 Find the molarity of 12.5 g of NaOH in 125 ml of water (molar mass...

#16 Find the molarity of 12.5 g of NaOH in 125 ml of water (molar mass of NaOH= 40.00 g/mol) #17 A solution is prepared by dissolving 15.0g of NaCl in 85.0 g of H2O. Find mass % (m/m) 16. Find the molarity of 12.5 g of NaOH in 125 ml of water (molar mass of NaOH = 40.00 g/mol: Show your work below in order to receive credit) 17. A solution is prepared by dissolving 15.0 g of NaCl...
2. A student prepared a stock solution by dissolving 15.0 g of NaOH in enough water...

2. A student prepared a stock solution by dissolving 15.0 g of NaOH in enough water to make 150 mL of a stock solution. She then took 22.5 mL of the stock solution and diluted it with enough water to make 250. mL of a working solution. (5 pts. each) A. What is the molar concentration of NaOH in the stock solution? # of moles x 1000 Naot mass= 15,09 g molanty volume of source (m) Mol 40 g/mol voline...

D 2. When 7.29 g hydrochloric acid (36.46 g/mol) and 8.00 g sodium hydroxide (40.00 g/mol)...

D 2. When 7.29 g hydrochloric acid (36.46 g/mol) and 8.00 g sodium hydroxide (40.00 g/mol) are mixed in 250.0 g water, the temperature of the solution increases by 10.3°C. Assume that the heat capacity of the solution is 4.18 J/(g °C). What is the molar enthalpy of neutralization of HCl by NaOH? 57.1 kJ/mol -57.1 kJ/mol 53.8 kJ/mol -53.8 kJ/mol 28.6 kJ/mol
A compound is found to have a molar mass of 598 g/mol. If 35.8 mg of the compound dissolved in enough water to make 175...

A compound is found to have a molar mass of 598 g/mol. If 35.8 mg of the compound dissolved in enough water to make 175 ml of solution at 25 degrees C what is the osmotic pressure of the resulting solution ?
Question 4 Status: Not yet answered | Points possible: 1.00 Glucose (molar mass 180.16 g/mol) is...

Question 4 Status: Not yet answered | Points possible: 1.00 Glucose (molar mass 180.16 g/mol) is a simple, soluble sugar. Glucose solutions are used to treat patients with low blood sugar. Suppose you prepare a glucose solution using the described procedure. Step 1: Dissolve 294.4 g of glucose in enough water to make 500.0 mL of solution. Step 2: Transfer 18.6 mL of the solution to a new flask and add enough water to make 250.0 mL of dilute solution....

What mass of NaOH must be added to enough water to make 1.50 L of solution...

What mass of NaOH must be added to enough water to make 1.50 L of solution having pH of 12.80?
A 0.6747 gram tablet containing CaCO3 (100.087 g/mol) is added to a flask along with 15.00...

A 0.6747 gram tablet containing CaCO3 (100.087 g/mol) is added to a flask along with 15.00 mL of 2.0 M HCl. Enough water is added to make 250.0 mL of solution A. A 20.00 mL of aliquot of solution A is taken and titrated with 15.03 mL of 0.1160 M NaOH. What is the wt% of pure CaCO3 in the sample? CaCO3 (aq) + 2HCl (aq) ---> CaCl2 (aq) +H2O (l) +CO2 (g) Confused on this whole problem, please help
2. A student prepared a stock solution by dissolving 15.0 g of NaOH in enough water...

2. A student prepared a stock solution by dissolving 15.0 g of NaOH in enough water to make 150. mL of a stock solution. She then took 22.5 mL of the stock solution and diluted it with enough water to make 250. mL of a working solution. A. What is the molar concentration of NaOH in the stock solution? B. What is the molar concentration of NaOH in the working solution? C. How much of the working solution will she...

2. A student prepared a stock solution by dissolving 15.0 g of NaOH in enough water...

2. A student prepared a stock solution by dissolving 15.0 g of NaOH in enough water to make 150. mL of a stock solution. She then took 22.5 mL of the stock solution and diluted it with enough water to make 250. mL of a working solution. (5 pts. each) A. What is the molar concentration of NaOH in the stock solution? B. What is the molar concentration of NaOH in the working solution? C. How much of the working...