0.10 moles of sodium sulfate is dissolved into 12 mL of solution. What is the molar concentration of the solution?
0.10 moles of sodium sulfate is dissolved into 12 mL of solution. What is the molar...
informations to solve the problem supooosed 3.109 g of sodium hydroxide was weighed out,dissolved, quantitively transferred to a 250 ml volumetric flask, made up to the mark,and mixed well, what is the molarity of sodium hydroxide? the answer is 0.3109 M 1.a. Burets are used to transfer titrant in a titration. A burette is depicted in the lab manual. A 10.00 mL sample of vinegar was titrated with the sodium hydroxide sample from question 1. The initial volume of sodium...
Suppose 0.934 g of sodium bromide is dissolved in 50. mL of a 0.10 M aqueous solution of silver nitrate. Calculate the final molarity of bromide anion in the solution. You can assume the volume of the solution doesn't change when the sodium bromide is dissolved in it. Round your answer to 2 significant digits x10
How many milliliters of a 5.0 MM sodium chloride solution is required to prepare 50. mL of 2.0 uM solution? Do not include units in the answer. Your answer should have two significant figures. (Round to the nearest whole number.) Provide your answer below:
If you have 500 mL of a 0.10 M solution of the acid, what mass of the corresponding sodium salt of the conjugate base do you need to make the buffer with a pH of 7.35 (assuming no change in volume)? Express the mass to two significant figures and include the appropriate units. Acid is HCLO Pka = 7.54
If you have 500 mL of a 0.10 MM solution of the acid, what mass of the corresponding sodium salt of the conjugate base do you need to make the buffer with a pH of 3.14 (assuming no change in volume)? nitrous acid (HNO2), pKa=3.34 Express the mass to two significant figures and include the appropriate units.
A) A buffer solution contains 0.10 mol of acetic acid and 0.13 mol of sodium acetate in 1.00 L. What is the pH of the buffer after the addition of 3×10−2 mol of HNO3? Express your answer using two significant figures. C) Barium sulfate, BaSO4, is used in medical imaging of the gastrointestinal tract because it is opaque to X rays. A barium sulfate solution, sometimes called a cocktail, is ingested by the patient, whose stomach and intestines can then...
Suppose 2.00 g of ammonium sulfate is dissolved in 350. mL of a 32.0 mM aqueous solution of sodium chromate. Calculate the final molarity of ammonium cation in the solution. You can assume the volume of the solution doesn't change when the ammonium sulfate is dissolved in it. Be sure your answer has the correct number of significant digits. (M)
0.6573 g of potassium iodate is dissolved and diluted to a volume of 100.0 mL. Then 25.00 mL of this stock solution is pipetted into a 100.0 mL volumetric flask which is filled to the mark with water. What is the concentration of the final standard solution in mol/L? Include units in your answer, and round the final answer to the correct number of significant figures.
The pKa is 7.54.
Acid is HClO.
Part B If you have 500 mL of a 0.10 M solution of the acid, what mass of the corresponding sodium salt of the conjugate base do you need to make the buffer with a pH of 7.68 (assuming no change in volume)? Express the mass to two significant figures and include the appropriate units. TI MÅ ? 0 2 Units m= | Value m =
24/30 25. What is the mass in grams of 0.450 moles of magnesium sulfate, MgSO4? grams Send a chat Your answer should be rounded to three significant figures. Do not include units in your answer. O