Homework Answers
![Molecular weight of comcome. MHz = {1x14+ 3x g/mol 217 g/mol [i molecular weigh of - N=14 Elmo) and H21 gimoi] a mole NH₃ wei](http://img.homeworklib.com/questions/13c692f0-d784-11eb-b23c-f3e09cfa53bf.png?x-oss-process=image/resize,w_560)
QUESTION 4 Which is the correct equilibrium constant equation for the reaction indicated below? NH3(aq)+ H20()...
QUESTION 4 Which is the correct equilibrium constant equation for the reaction indicated below? NH3(aq)+ H20() <-> NH4 (aq) + O(aq) [NH4 IOH K [H20]INH3] [NH4 IOH ] Ke [NH3] [H2O]INH3] Kc= [NH4 IOH [NH31 [NH4 11OH
D Question 40 15 pts Calculate the mole fraction, molarity and molality of NH3 if it...
D Question 40 15 pts Calculate the mole fraction, molarity and molality of NH3 if it is in a solution composed of 30.6 g NH3 in 81.3 g of H20. The density of the solution is 0.982 g/mL and the density of water is 1.00 g/mL. (The molar mass for NH3 is 17 and 18 for H20). Answers are to be shown to 3 significant digits (X.XX or 0.XXX or XXX) 1. The mole fraction for NH3 is 2. The...
Which of the following contains the greatest number of atoms? 0.70 mole NH3 0.25 mole SO2...
Which of the following contains the greatest number of
atoms?
0.70 mole NH3
0.25 mole SO2
0.50 mole ClO2
0.75 mole He
Which of the following contains the greatest number of atoms? 0 0.70 mole NH3 O 0.25 mole SO2 0 0.50 mole Cl20 0.75 mole He
Question 4 1 pts Which of the following mole ratios CANNOT be derived from the reaction 2 502 (g) + O2 (g) + 2 H2...
Question 4 1 pts Which of the following mole ratios CANNOT be derived from the reaction 2 502 (g) + O2 (g) + 2 H20 (1) --> 2 H2SO4 (aq) ? 02 mol SO2 2 mol H2SO4 2 mol H2SO4 2 mol O2 0 1 mol O2 2 mol H20 O 2 mol O2 1 mol O2 2 mol H20 2 mol SO2 Question 1 1 pts What do the coefficients in a balanced equation tell us? Mark ALL that...
Select all that apply. Which of the following bases are strong enough to deprotonate CH3CH2CH2C CH (pKa 25), so that equilibrium favors the products' CH3ONa O H20 NH3 CH&Li NaCH2(CO)N(CH3)2 N...
Select all that apply. Which of the following bases are strong enough to deprotonate CH3CH2CH2C CH (pKa 25), so that equilibrium favors the products' CH3ONa O H20 NH3 CH&Li NaCH2(CO)N(CH3)2 NaNH2
Select all that apply. Which of the following bases are strong enough to deprotonate CH3CH2CH2C CH (pKa 25), so that equilibrium favors the products' CH3ONa O H20 NH3 CH&Li NaCH2(CO)N(CH3)2 NaNH2
Concerning the equation, NH3 + H20 <-> NH4+ + OH", (<-> consider as an equilibrium arrow) which of the...
Concerning the equation, NH3 + H20 <-> NH4+ + OH", (<-> consider as an equilibrium arrow) which of the following statements are TRUE? (i) NH3 and OH are weak bases. (ii) NH3 is a Bronsted base and NH4+ is its conjugate acid. (iii) H20 is a Bronsted acid and OH is its conjugate base. (iv) NH4+ is a weaker acid than H20. Oi, ii, iii Oi, i Oii, iv O ii, iii o all statements are true
Question 9 (4 points) The rate of effusion of NH3 is 2.40 mole/min. What would be...
Question 9 (4 points) The rate of effusion of NH3 is 2.40 mole/min. What would be the rate of effusion of H2 under the same conditions? 7.00 O 0.28 2.40 0.82 2.04 Question 11 (4 points) ✓ Saved Which of the following will have the highest concentration of sodium ion? .20M NaCl 0.15M Na2SO4 .090M Na3PO4 1.10M NaC2H302 There is insufficient information to answer.
all of them please!!!!! 12. What is the volume, in liters, of 12.0 moles of bromine?...
all of them please!!!!!
12. What is the volume, in liters, of 12.0 moles of bromine? Bromine is a liquid at room temperature and has a density of 3.12 g/cm 13. Calculate the density of sulfur if you have 9.92x102 atoms in 2.51x10 L? UNITS 14. Calculate the number of hydrogen atoms in 0.252 ML of sulfuric acid. (D=1.02g/mL) 15. Indicate whether the following is true or false. If it is false, correct it to make it true. a. If...
Arrange the following compounds in order of unpaired electrons? [Fe(NH3)612+ [FeCI. [Mn(H2O).]2+ O [Mn(H2O).P+ > [FeCl.14-...
Arrange the following compounds in order of unpaired electrons? [Fe(NH3)612+ [FeCI. [Mn(H2O).]2+ O [Mn(H2O).P+ > [FeCl.14- >[Fe(NH3)612+ O [Fe(NH3).12+>[FeC1:14->[Mn(H20).12+ O [FeC1.14-> [Mn(H20),12+>[Fe(NH3).12+ O [Mn(H2O).]2+ > [Fe(NH3).12+>[FeC1.14- O [FeCl.14-> [Fe(NH3)612+->[Mn(H20).12+ O [Mn(H20).12+> [FeC1.14->[Fe(NH3),12+
Question Completion Status: QUESTIONS The number of molecules in 6.5g H20 is O 0.361 molecules 2.2x1023...
Question Completion Status: QUESTIONS The number of molecules in 6.5g H20 is O 0.361 molecules 2.2x1023 molecules 3.91x1024 molecules 3.3x1022 molecules QUESTION 10 A sample of ammonia NH3 weighs 25.5g. How many NH3 molecules is this? 25.5 molecules 1.50 molecules 9.01x1022 molecules 36.04x1023 molecules QUESTION 7 Calculate the number of moles in 12.8g of CH4 and mark the right answer. O 4.0 mol. 12.8 mol O 0.045 mol O 0.798 mol. QUESTION 8 Calculate the number of moles in 12.8g...
QUESTION 4 Which is the correct equilibrium constant equation for the reaction indicated below? NH3(aq)+ H20() <-> NH4 (aq) + O(aq) [NH4 IOH K [H20]INH3] [NH4 IOH ] Ke [NH3] [H2O]INH3] Kc= [NH4 IOH [NH31 [NH4 11OH
D Question 40 15 pts Calculate the mole fraction, molarity and molality of NH3 if it is in a solution composed of 30.6 g NH3 in 81.3 g of H20. The density of the solution is 0.982 g/mL and the density of water is 1.00 g/mL. (The molar mass for NH3 is 17 and 18 for H20). Answers are to be shown to 3 significant digits (X.XX or 0.XXX or XXX) 1. The mole fraction for NH3 is 2. The...
Which of the following contains the greatest number of
atoms?
0.70 mole NH3
0.25 mole SO2
0.50 mole ClO2
0.75 mole He
Which of the following contains the greatest number of atoms? 0 0.70 mole NH3 O 0.25 mole SO2 0 0.50 mole Cl20 0.75 mole He
Question 4 1 pts Which of the following mole ratios CANNOT be derived from the reaction 2 502 (g) + O2 (g) + 2 H20 (1) --> 2 H2SO4 (aq) ? 02 mol SO2 2 mol H2SO4 2 mol H2SO4 2 mol O2 0 1 mol O2 2 mol H20 O 2 mol O2 1 mol O2 2 mol H20 2 mol SO2 Question 1 1 pts What do the coefficients in a balanced equation tell us? Mark ALL that...
Select all that apply. Which of the following bases are strong enough to deprotonate CH3CH2CH2C CH (pKa 25), so that equilibrium favors the products' CH3ONa O H20 NH3 CH&Li NaCH2(CO)N(CH3)2 NaNH2
Select all that apply. Which of the following bases are strong enough to deprotonate CH3CH2CH2C CH (pKa 25), so that equilibrium favors the products' CH3ONa O H20 NH3 CH&Li NaCH2(CO)N(CH3)2 NaNH2
Concerning the equation, NH3 + H20 <-> NH4+ + OH", (<-> consider as an equilibrium arrow) which of the following statements are TRUE? (i) NH3 and OH are weak bases. (ii) NH3 is a Bronsted base and NH4+ is its conjugate acid. (iii) H20 is a Bronsted acid and OH is its conjugate base. (iv) NH4+ is a weaker acid than H20. Oi, ii, iii Oi, i Oii, iv O ii, iii o all statements are true
Question 9 (4 points) The rate of effusion of NH3 is 2.40 mole/min. What would be the rate of effusion of H2 under the same conditions? 7.00 O 0.28 2.40 0.82 2.04 Question 11 (4 points) ✓ Saved Which of the following will have the highest concentration of sodium ion? .20M NaCl 0.15M Na2SO4 .090M Na3PO4 1.10M NaC2H302 There is insufficient information to answer.
all of them please!!!!!
12. What is the volume, in liters, of 12.0 moles of bromine? Bromine is a liquid at room temperature and has a density of 3.12 g/cm 13. Calculate the density of sulfur if you have 9.92x102 atoms in 2.51x10 L? UNITS 14. Calculate the number of hydrogen atoms in 0.252 ML of sulfuric acid. (D=1.02g/mL) 15. Indicate whether the following is true or false. If it is false, correct it to make it true. a. If...
Arrange the following compounds in order of unpaired electrons? [Fe(NH3)612+ [FeCI. [Mn(H2O).]2+ O [Mn(H2O).P+ > [FeCl.14- >[Fe(NH3)612+ O [Fe(NH3).12+>[FeC1:14->[Mn(H20).12+ O [FeC1.14-> [Mn(H20),12+>[Fe(NH3).12+ O [Mn(H2O).]2+ > [Fe(NH3).12+>[FeC1.14- O [FeCl.14-> [Fe(NH3)612+->[Mn(H20).12+ O [Mn(H20).12+> [FeC1.14->[Fe(NH3),12+
Question Completion Status: QUESTIONS The number of molecules in 6.5g H20 is O 0.361 molecules 2.2x1023 molecules 3.91x1024 molecules 3.3x1022 molecules QUESTION 10 A sample of ammonia NH3 weighs 25.5g. How many NH3 molecules is this? 25.5 molecules 1.50 molecules 9.01x1022 molecules 36.04x1023 molecules QUESTION 7 Calculate the number of moles in 12.8g of CH4 and mark the right answer. O 4.0 mol. 12.8 mol O 0.045 mol O 0.798 mol. QUESTION 8 Calculate the number of moles in 12.8g...
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