2. (a) How many grams of Cu metal can be "dissolved" by 50.0 ml of 299H20(0)...
2. A 0.4682 g sample of a metal is dissolved in a total volume of 50.0 mL. a. If the metal was pure silver, how many mL of a 0.1215 M KSCN solution would be required to react with a 5.00 mL aliquot of the alloy solution? b. If the metal was pure copper, what would be the absorbance of the solution?
A) How many grams of HCI are in 300.0 mL of 12.0 M HCI Solution? B) How many grams of solute are present in 125 mL of 0.20 M NaHCO3? C) What is the molarity of the solution when 55.0g of glucose C6H12O6 is dissolved in water to make 1250 mL of solution? D) What is the molarity of the solution when 35.0g of potassium phosphate dissolves in water to make 750. mL of solution? E) A 0.025 M glucose...
If 2.75 g of urea CO(NH2)2 are dissolved to make 50.0 mL of solution.. what is the molarity of this solution ? if you take 10.0mL of this solution how many moles of urea do you have? if you dilute this 10.0mL portion to 200mL what is the molarity of the solution?
i need help with 1-6
Carlos Chapter 9 Practice Problems t. A solution is made by dissolving 50.0 grams of HCI in enough water to give 2500 ml. of selutien. a) What is the molarity of the solution? b) what is the % concentration (w/v) of the solution? 2. How many grams of a protein are there in 275 mL of a 0.00%(wmor a protein soluton? 3. How many grams of NaoH are there in 855 mL of a 350...
1. How many grams of zinc chloride are needed to make 245 mL of a 0.769 M solution? 2. Calculate the concentration of the ions present in a 3.0 M sodium phosphate solution. in coolad hon 20 3. Calculate the concentration of a solution prepared by dissolving 35.0 g of aluminum carbonate in enough water to prepare 500.0 mL of solution. 4. The A student diluted 45.7 mL of a 3.78 M aluminum carbonate solution to a final volume of...
Consider a molecule with the formula C3H1106N13. How many moles of hydrogen atoms are there if you have 7 moles of the molecule? Consider the following generic balanced reaction equation: 5A + 3B 22C If 3.3 moles of A react completely, how many moles of C will be produced? How many grams are the in 40 moles of a compound with a molar mass of 58.2 grams per mole (g/mol)? How many moles are in 176.4 grams of a compound...
2.) How many grams of lithium bromide are dissolved in 125.0 grams of solution that is 5.00% sodium iodide by mass? 3.) How many milliliters of a 20.0% antibiotic solution must be administered to a patient who needs 1.75 grams of antibiotics? Assume the density of the solution is 1.18 g/mL.
8, A solution is labeled 2.5% (m/v). How many grams will be in 50.0 mL of this solution?
HELP WITH B and C please ? (molarity stoich)
How many grams of sodium nitrite are needed to make 2.50 L of 1.12 M solution? Calculate the number of moles of the precipitate formed when 525 mL of 0.500 M potassium iodide reacts with excess lead (II) nitrate. Balanced equation:___ Calculate the number of grams of precipitate formed when 2.00 L of 0.400 M calcium chloride reacts with excess silver nitrate. Balanced equation: How many milliliters of a 1.5 M...
(a) How many grams of solute are present in 70.0 mL of 1.33 M CoSO4? _______ g (b) If 1.50 g of (NH4)2SO4 is dissolved in enough water to form 200. mL of solution, what is the molarity of the solution? _______M (c) How many milliliters of 0.560 M NiCl2 contain 2.00 g of solute? _________ mL