Question

In: Chemistry

1.5×10−2 M Sr(NO3)2 Express your answer using two significant figures. Part B 1.5×10−2 M NaF Express...

1.5×10⁻² M Sr(NO3)2

Express your answer using two significant figures.

Part B

1.5×10⁻² M NaF

Express your answer using two significant figures.

Expert Solution

1.5×10⁻² M Sr(NO3)2

SrF2 --------------> Sr^2+ (aq) + 2F^-

s 2s

s+ 1.5*10^-2 2s

Ksp = [Sr^2+][F^-]^2

4.3*10^-9 = s+1.5*10^-2*(2s)^2

4.3*10^-9 = s+1.5*10^-2*(2s)^2 [ s+1.5*10^-2 = 1.5*10^-2]

4.3*10^-9 = 1.5*10^-2*(2s)^2

4s^2 = 4.3*10^-9/1.5*10^-2

4s^2 = 2.86*10^-7

s^2 = 7.15*10^-8

s = 2.67*10^-4M

solubility of SrF2 = 2.67*10^-4M

Part B

1.5×10⁻² M NaF

SrF2 --------------> Sr^2+ (aq) + 2F^-

s 2s

s 2s+1.5*10^-2

Ksp = [Sr^2+][F^-]^2

2.5*10^-9 = s*(2s+1.5*10^-2)^2 [ 2s+1.5*10^-2 = 1.5*10^-2 ]

4.3*10^-9 = s*(1.5*10^-2)^2

s = 4.3*10^-9/(1.5*10^-2)^2

s = 1.9*10^-5 M

solubility of SrF2 is 1.11*10^-5 M

queen_honey_blossom answered 1 year ago

Part A Complete the first row. Express your answer using two significant figures. SubmitMy AnswersGive Up...

Part A Complete the first row. Express your answer using two significant figures. SubmitMy AnswersGive Up Incorrect; Try Again; 5 attempts remaining Part B Complete the first row. Express your answer using two decimal places. [OH−] = 3.6•10.10 M SubmitMy AnswersGive Up Incorrect; Try Again; 4 attempts remaining Part C Complete the first row. Express your answer using two decimal places. pH = 8 SubmitMy AnswersGive Up Incorrect; Try Again; 4 attempts remaining Part D Complete the first row. Indicate...

Answer the following and express your answer using two significant figures. Calculate the final concentration of...

Answer the following and express your answer using two significant figures. Calculate the final concentration of each of the following diluted solutions. A) 3.5 L of a 4.0 M HNO3 solution is added to water so that the final volume is 8.0 L . B) Water is added to 0.15 L of a 6.0 M KOH solution to make 2.0 L of a diluted KOH solution. C) A 35.0 mL sample of 8.0 % (m/v) NaOH is diluted with water...

Answer the following and express your answer using two significant figures. Calculate the grams of solute...

Answer the following and express your answer using two significant figures. Calculate the grams of solute needed to prepare each of the following solutions. A) 1.6 L of a 4.5 M NaOH solution B) 7.0 L of a 0.20 M CaCl2 solution C) 180 mL of a 3.50 M NaNO3 solution

1. Moles of Zn(NO3)2 in 111.50 g of this substance. Express your answer using four significant figures. n = mol 2....

1. Moles of Zn(NO3)2 in 111.50 g of this substance. Express your answer using four significant figures. n = mol 2. Number of molecules in 4×10−6 mol CH3CH2OH. Express your answer using four significant figures. N = molecules 3. Number of N atoms in 0.450 mol NH3. Express your answer using three significant figures. N = atoms

4.7 mol N2H4 Express your answer using two significant figures. moles NH3 formed = mol Part...

4.7 mol N2H4 Express your answer using two significant figures. moles NH3 formed = mol Part B 3.95 mol N2H4 Express your answer using three significant figures. moles NH3 formed = mol Part C 34.8 g N2H4 Express your answer using three significant figures. moles NH3 formed = mol Part D 14.8 kg N2H4 Express your answer using three significant figures. moles NH3 formed = mol

Calculate (in MeV) the total binding energy for 40Ar. Express your answer using four significant figures....

Calculate (in MeV) the total binding energy for 40Ar. Express your answer using four significant figures. Calculate (in MeV) the binding energy per nucleon for 40Ar. Express your answer using three significant figures. Calculate (in MeV) the total binding energy for 40K. Express your answer using four significant figures. Part D Calculate (in MeV) the binding energy per nucleon for 40K. Express your answer using three significant figures.

a volume of 75mL of 0.040M NaF is mixed with 25mL of 0.10M Sr(NO3)2. Calculate the...

a volume of 75mL of 0.040M NaF is mixed with 25mL of 0.10M Sr(NO3)2. Calculate the concentration of the following ions in the final solution (Ksp for SrF2= 2.0x10^-10). [NO3-] [Na+] [Sr2+] [F-].

Determine the Ph 0.120 M NaClO and 4.50×10−2 M KI Express your answer using two decimal...

Determine the Ph 0.120 M NaClO and 4.50×10−2 M KI Express your answer using two decimal places.

Calculate the pH of each solution. Part A [H3O+] = 7.7×10−8 M Express your answer using...

Calculate the pH of each solution. Part A [H3O+] = 7.7×10−8 M Express your answer using two decimal places. pH = Part B [H3O+] = 7.0×10−7 M Express your answer using two decimal places. pH = Part C [H3O+] = 4.2×10−6 M Express your answer using two decimal places. pH = Part D [H3O+] = 6.4×10−4 M Express your answer using two decimal places. pH = Part E [OH−] = 9.9×10−7 M Express your answer using two decimal places. Part...

150.0 mL of 0.27 M HF with 230.0 mL of 0.32 M NaF Express your answer...

150.0 mL of 0.27 M HF with 230.0 mL of 0.32 M NaF Express your answer using two decimal places.