If 242 mL of a 2.50 M aqueous solution of Ca(NO3)2 is evaporated to dryness, what is the mass of the residue?
If 242 mL of a 2.50 M aqueous solution of Ca(NO3)2 is evaporated to dryness, what...
If 276 mL of a 2.30 M aqueous solution of Ca(NO3) is evaporated to dryness, what is the mass of the residue?
5. If 230 mL of a 2.40 M aqueous solution of Ca(NO3)2 is evaporated to dryness, what is the mass of the residue ? Enter the correct mumerical value with the appropriate number of significant figures. Express scientific notation like 4.29E-15 Grade This Exercise 1 41 11/
A 12.0 mL sample of NaCl solution has a mass of 12.65g after the solution is evaporated to dryness, the dry residue has a mass of 4.25g. Calculate the concentration of the solution in m/m% m/v% and M
What is the molarity of the solution formed by dissolving 10.0g of Ca(NO3)2 in 250 mL aqueous solution?
A volume of 36.2 mL of a 0.268 M Ca(NO3)2 solution is mixed with 90.5 mL of a 1.196 M Ca(NO3)2 solution. Calculate the concentration of the final solution.
What is the molarity of the solution formed by dissolving 10.0g of Ca(NO3)2 in 250 mL aqueous solution? 0.24 M 4.1M 25 M 0.040 M Question 18 5 pts Consider the reaction H2SOalaq)+ 2NaOH(aq) 2H20() +Na sOalaq) If 25 mL of H2sO4 was needed to react with 15 mL of 0.20 M NaOH, what is the molarity of the H2SO4(aq)? 0.060 M 17 M O024 M 0.12 M
A liter of a solution saturated at 25°C with calcium oxalate, Cac,Oc. is evaporated to dryness, giving a 0.0061-g residue of Caczo. Calculate the solubility product constant for Caczo O K-3.9x107 Oko - 2.3 x 104 OK-8x102 OK-7.0 x 10 OK-2.3x10
A)A volume of 46.2 mL of a 0.568 M Ca(NO3)2 solution is mixed with 75.5 mL of a 1.496 M Ca(NO3)2 solution. Calculate the concentration of the final solution. Calculate the molarity of each of the following solutions. (b) 7.25 g of methanol (CH3OH) in × 102 mL of solution: mol/L (c) 9.68 g of calcium chloride (CaCl2) in 2.20 × 102 mL of solution: mol/L (d) 8.57 g of naphthalene (C10H8) in 85.2 mL of benzene solution: mol/L
QUESTION 1 43.2 mL of aqueous 0.255 M Pb(NO3)2 is mixed with 36.1 mL of 0.415 M NaCl. The equation for the precipitate reaction is: Pb(NO3)2 (aq) + 2 NaCl (aq) --> PbCl2 (s) + 2 NaNO3 (aq) How many moles of PbCl2 are formed? (with correct sig figs) QUESTION 2 What volume (in mL!!!) of 1.28 M HCl is required to react with 3.33 g of zinc (65.41 g/mol) according to the following reaction? Zn(s) + 2 HCl (aq)...
How many ppm of Ca(NO3)2 are in 0.412 mM Ca(NO3)2 (aqueous solution)? 61.3 ppm 55.7 ppm 41.2 ppm 67.6 ppm 59.2 ppm