7) What is the molarity of formaldehyde in a solution containing 0.25g of formaldehyde (CH2O) per...
+. Calculate the molarity of a solution containing 7.50 mol formaldehyde, CH20, in enough water to make 1.50 L of solution. 2. Calculate the molarity of 50.0 mL of solution containing 7.50 g of methanol, CHO. 3. Calculate the number of moles and grams of ethyl alcohol, C2H60, in 29.21 mL of a 6.013 M solution. Dilution: 4. Calculate the final concentration of NaCl after 1.25 L of 0.500 M NaCl is (a) diluted to 2.50 L with water and...
What is the molarity of a solution containing 88 8 grams of solute in 1366 7 mL of solution? (molar mass of solute s = 57 g/mol)) Select one 3700 1.14 0.470 0.00114
3. (3 pts) Formaldehyde (H2CO) is sold as a 37.0% by weight solution in water. a. Write out both the mathematical definition of weight percent and the mathematical definition of molality, below. How are they similar? How are they different? b. What is the molality of formaldehyde in this solution? c. If the density of the solution if 1.09 g/mL, what is the molarity of formaldehyde? d. You dilute 10.0 mL of the concentrated formaldehyde solution to 200.0 mL with...
What is the molarity of a solution containing 15.2 g of KCl in 354 mL of solution?
What is the molarity of 0.500 L of a potassium chromate solution containing 0.0650 mol of K2CrO4? What is the molarity of 4.50 L of a solution containing 0.206 mol of urea [(NH2)2CO]? What mass of HCl is present in 825 mL of a 1.25 M solution? What mass of isopropyl alcohol (C3H8O) is dissolved in 2.050 L of a 4.45 M aqueous C3H8O solution?A 50.0 mL sample of saltwater that is 3.0% m/v is diluted to 950 mL. What...
In a CaF2 solution containing 23.9g CaF2 in 500 mL aqueous solution, what is the molarity and molality of the F-ions? (assume a density of 1.00 g/mL)
What is the molarity of a solution containing 15.0g NaOH? (molar mass =40.0g?mol) per 250.0mL of solution?
A) The formaldehyde, CH2O, can be prepared from methanol, using a copper catalyst, according to the following reaction: CH3OH (g) → CH2O (g) + H2 (g) If 25.7 g of CH2O (g) are produced for each mole of methanol that reacts, calculate: to. Theoretical performance b. Real or experimental performance c. Percent of yield Experimental yield and percentage yield values are not given B) A saturated solution of Mg (OH) 2 in contact with solid in solution, is present at...
what is the molarity of a 45.0 mL solution containing 6.00 g of sodium hydroxide?
4. What is the molarity of a solution containing 10.0 g AgNO3 dissolved in 500. ml of solution?