How many milliliters of a 0.390 MKOH solution contain 1.67x10-2 mol of KOH? Express your answer...
If you had only 23 g of KOH remaining in a bottle, how many milliliters of 8.0 %(w/v) solution could you prepare? Express your answer using two significant figures. How many milliliters of 0.27 M solution could you prepare? Express your answer using two significant figures.
Question 13: How many milliliters of a 0.45 M solution contain 15.0 g of BaCl2? Express your answer using two significant figures Question 14: A bottle of 12.0 M hydrochloric acid has only 35.4 mL left in it. A)What will the HCl concentration be if the solution is diluted to 270.0 mL ?
Calculate the volume, in milliliters, of a 0.390 M KOH solution that should be added to 5.500 g of HEPES (MW = 238.306 g/mol, PK, = 7.56) to give a pH of 7.58. KOH volume = 17
1. A solution of rubbing alcohol is 76.5 % (v/v) isopropanol in water. How many milliliters of isopropanol are in a 77.5 mL sample of the rubbing alcohol solution? Express your answer to three significant figures. 2. How many liters of a 3.18 M K2SO4 solution are needed to provide 98.8 g of K2SO4 (molar mass 174.01 g/mol)? Recall that M is equivalent to mol/L. Express your answer to three significant figures.
1) A solution of rubbing alcohol is 69.0 % (v/v) isopropanol in water. How many milliliters of isopropanol are in a 88.8 mL sample of the rubbing alcohol solution? Express your answer to three significant figures. 2) How many liters of a 3.06 M K2SO4 solution are needed to provide 83.8 g of K2SO4 (molar mass 174.01 g/mol)? Recall that M is equivalent to mol/L. Express your answer to three significant figures.
How many atoms are in each elemental sample? Part A.) 3.8 mol Cu Express your answer using two significant figures. Part B.) 5.1×10−3 mol C Express your answer using two significant figures. Part C.) 16.1 mol Hg Express your answer using three significant figures. Part D) 0.235 mol Na Express your answer using three significant figures.
A volume of 100 mL of a 0.390 M HN O 3 solution is titrated with 0.800 M KOH . Calculate the volume of KOH required to reach the equivalence point. Express your answer to three significant figures and include the appropriate units.
how many milliliters of 20% HBr solution contain 4 grams of HBr? 2. How many milliliters of 20% (m/v) HBr solution contain 4 grams of HBr?
Part A How many sulfur molecules are there in 0.570 mol of octasulfur, Sg? Express your answer to three significant figures. IVO AEO ? molecules Submit Request Answer Part B How many sulfur atoms are there in 0.570 mol of octasulfur, S8? Express your answer to three significant figures. ΑΣφ ? atoms
Part A volume of 40.0 mL of a 0.820 M HNO3 solution is titrated with 0.390 M KOH. Calculate the volume of KOH required to reach the equivalence point Express your answer to three significant figures and include the appropriate units. ► View Available Hint(s) Value Units Submit