5. If 230 mL of a 2.40 M aqueous solution of Ca(NO3)2 is evaporated to dryness,...

Question

Question

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 c

science chemistry

Answer 1

Answer #1

Answer

90.6g

Explanation

Molarity = number of moles of solute per liter of solution

number of moles of Ca(NO3)2 present in the solution = (2.40mol/1000ml) × 230ml = 0.552mol

mass = number of moles × molar mass

mass of Ca(NO3)2 = 0.552mol × 164.1g/mol = 90.6g

Answer 2

Similar Homework Help Questions

If 276 mL of a 2.30 M aqueous solution of Ca(NO3) 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?
If 242 mL of a 2.50 M aqueous solution of Ca(NO3)2 is evaporated to dryness, what...

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?
What is the total mass of oxygen contained in 8.20 g of benzoic acid (C6H3COOH Enter...

What is the total mass of oxygen contained in 8.20 g of benzoic acid (C6H3COOH Enter the correct numerical value with the appropriate number of significant figures. Express scientific notation like 4.29E-15

Calculate the molar solubility of CaF2 in a solution containing 0.871 M of Ca(NO3)2. The Ksp...

Calculate the molar solubility of CaF2 in a solution containing 0.871 M of Ca(NO3)2. The Ksp value for CaF2 is 1.46×10−10. Express the molar solubility to three significant figures and include the appropriate units. S =
Calculate the molar solubility of CaF2 in a solution containing 0.357 M of Ca(NO3)2. The Ksp valu...

Calculate the molar solubility of CaF2 in a solution containing 0.357 M of Ca(NO3)2. The Ksp value for CaF2 is 1.46×10−10. Express the molar solubility to three significant figures and include the appropriate units.
QUESTION 1 43.2 mL of aqueous 0.255 M Pb(NO3)2 is mixed with 36.1 mL of 0.415...

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)...

Calculate the molar solubility of CaF2 in a solution containing 0.647 M of Ca(NO3)2. The Ksp value for CaF2 is 1.46×10−1...

Calculate the molar solubility of CaF2 in a solution containing 0.647 M of Ca(NO3)2. The Ksp value for CaF2 is 1.46×10−10. Express the molar solubility to three significant figures and include the appropriate units.
A 2.5×10−2 M solution of HCl is used to titrate 147 mL of a Ca(OH)2 solution...

A 2.5×10−2 M solution of HCl is used to titrate 147 mL of a Ca(OH)2 solution of unknown concentration. 1. If 100 mL of HCl is required, what is the normality of the Ca(OH)2 solution? Express your answer using two significant figures. 2. What is the molarity? Express your answer using two significant figures.
A volume of 50.0 mL of a 0.690 M HNO3 solution is titrated with O.230 M...

A volume of 50.0 mL of a 0.690 M HNO3 solution is titrated with O.230 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

Please answer all, thank you! Part A What volume of a 0.32 M Mg(NO3)2 solution contains...

Please answer all, thank you! Part A What volume of a 0.32 M Mg(NO3)2 solution contains 92 g of Mg(NO3)2? Express your answer using two significant figures and L. Part B A 4.5 −L sample of a 5.7 M NaCl solution is diluted to 60 L . What is the molarity of the diluted solution? Express your answer using two significant figures. Part C How much of a 14.0 M HNO3 solution should you use to make 840.0 mL of...