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A) What is the pH of a solution made by adding 6.21 grams of sodium fluroide, NaF, to 391 mL of 0.317 M hydrofluoric acid, HF? (Assume no change in volume takes place.)
B) What is the pH of the solution in (a) after adding 49.0 mL of 0.100 M NaOH?
You wish to prepare 0.13 M HNO3 from a stock solution of nitric acid that is 13.1 M. How many milliliters of the stock solution do you require to make up 1.00 L of 0.13 M HNO3?
We titrated each layer with 0.10 NaOH and found that 1. took 2.57 mL of NaOH to titrate and 2. took 0.08 mL of NaOH to titrate. What is the concentration of acid in 1 and 2?
NaOH is added to 625 mL of 0.250 M weak acid (Ka = 5.62 × 10-5). What is the pH of the resulting buffer?
The products of the fusion are carbon-13 and a proton. a) Write a nuclear reaction for this process. b) How much energy is released when 1.00 g of B-10 is fused with alpha particles?
A 326 mL container holds 0.146 g of Ne and an unknown amount of Ar at 35°C and a total pressure of 640. mmHg. Calculate the moles of Ar present.
A sample containing .221g Cl is dissolved in 50.0mL of water. How many moles of Cl ion are in the solution?
Butyric acid (a monoprotic acid) is responsible for the foul smell of rancid butter. the pKa of butyric acid is 4.84. calculate the pH of a 0.05M sloution of sodium butyrate
Find the temperature capable of expanding 2.500 liters of chlorine at 18.00°C and 0.9000 atm to 5.200 liters. No change in pressure took place.
Determine the number of bonding electrons and the number of nonbonding electrons in the structure of BeF_2 please Enter the number of bonding electrons followed by the number of nonbonding electrons
N2 + 3H2 -> 2NH3 . 28.0 grams of N2 and 5.04 grams of H2 are reacted, producing 17.8 grams of NH3. What is the percent yield?
Aqueous solutions of sodium thiosulfate, Na2SO3, are used as an antidote to some snakebites. How many moles of sodium ions are found in 10.0 mL of a 0.15 M solution of Na2S2O3?
What volume does the beaker hold? Use d =1.00 g/mL as the density of water answer in mL B)How much would the beaker and its contents weigh if it was completely filled with mercury?
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