Homework Answers
here Ca and ZnCO3 are the reactants and Zn,CaCO3 are the products.
total mass of reactants =64g+192g=256g
by the law of conservation of mass we know that:
total mass of reactants=total mass of products
so 256g=152g+mass of zinc
mass of zinc =256g-152g=104g
(conservation of mass law states that mass of an isolated system is constant)
thank you
Add Answer to:
QIII. Observe the following Lab reaction and answer the questions that follow: Aqueous Solution Aqueous Solution...
LAB PARTNER Pre-Lab Questions Answer questions 1-6 after you have read the lab experiment and studied...
LAB PARTNER Pre-Lab Questions Answer questions 1-6 after you have read the lab experiment and studied titration in your textbook (section 7.5) and/or in the lab manual (pages xxi-xxiv). Show your work fully and clearly. Calculate the molar mass of NaOH and the molar concentration of a solution containing 3.978 g of NaOH in 750.0 mL 1. Calculate the number of moles of HCl in 50.00 mL of 0.1444 M HCl. 2. Continued on the next page. 3. Calculate the...
Consider the spectrum of [V(H2O).]3+ in aqueous solution below and answer the questions that follow 17,000...
Consider the spectrum of [V(H2O).]3+ in aqueous solution below and answer the questions that follow 17,000 cm 24,500 cm Absorbance Warenumber cm (a) What is the free-ion term for the electronic arrangement of the metal-ion? Use the appropriate Tanabe-Sugano diagram to assign the absorbance bands in the spectrum above Which transition is not observed in the spectrum? Suggest a reason why only two absorption bands are observed Determine the B Racah parameter Show all calculations. (e) Determine the Ao parameter...
Consider the spectrum of [Cr(NH3).]* in aqueous solution below and answer the questions that follow 350...
Consider the spectrum of [Cr(NH3).]* in aqueous solution below and answer the questions that follow 350 nm 465 mm logie/l mol-'cm') 400 2/nm 200 (50 000 cm') (25 000 cm 600 (17 000 cm" (1) Use the appropriate Tanabe-Sugano diagram to assign the absorbance bands in the spectrum above (11) Which spin-allowed transition is not observed in the spectrum? Suggest a reason why only two absorption bands are observed (111) Determine the B Racah parameter Show all calculations (iv) Determine...
T H E HUL I giups, UI CUPY WILT Work 1) Refer to the following information...
T H E HUL I giups, UI CUPY WILT Work 1) Refer to the following information for parts a-d: The calcium ion is among the most important minerals for the human body. Maintaining proper calcium levels over a lifetime is strongly correlated with osteoporosis prevention. The recommended daily allowance (RDA) of calcium is 1.200 mg daily. Calcium supplements are available as calcium carbonate and calcium citrate, Ca (C.HSO). a. What is the mass percent of calcium in calcium citrate? b....
I need help with the following questions 1,2,3 the molarity for Sodium Carbonate is .50 and for Calcium Nitrite is .25 t...
I need help with the following questions 1,2,3 the molarity for
Sodium Carbonate is .50 and for Calcium Nitrite is .25 the volume
for both is 100mL
Lab 7 Post-Lab Upload Write out the molecular, ionic, and net ionic equations for the precipitation reaction (you should already have these in your notebooks from lab. Make sure the molecular equation is properly balanced, we will use it for the below calculations. Molecular: Naz CO3(aq) + Ca(NO3)2(aq) - 2 NaNO3)(aq) + CaCO3...
Please help me with questions 7-12.Thanks Part 1: Observations, Data and Calculations 1. In the table,...
Please help me with questions 7-12.Thanks
Part 1: Observations, Data and Calculations 1. In the table, describe your observations when the different solutes were dissolved in tap water and when vinegar was added into the solution. (2 marks) Table 1: Solubility and reactivity Solute Solubility in water Reactivity with vinegar Baking soda Sugar Salt 2. (1.5 marks) Write a chemical equation to represent what you observed when you added each solute to water. 3. (0.5 mark) Write a chemical equation...
all 4 questions. plz mark the answer clearly. For the Following Questions: Consider the reaction of...
all 4 questions. plz mark the answer clearly.
For the Following Questions: Consider the reaction of Fe(NO3)2 (aq) and KOH(aq). Follow each part to find the correct Molecular, Complete lonic, and Net lonic Equation for this reaction. Solubility rules are very useful when determining the physical states of the products. Solubility Rules for Ionic Compounds Substance Na, K, NHA, NO; SO4 CI, Br",r Ag ОН Rules Ionic compounds which contain these ions are soluble. Most ionic compounds containing sulfate are...
DATA ANALYSIS I. You conducted the following three reactions in this experiment Reaction I(AHN): An aqueous...
DATA ANALYSIS I. You conducted the following three reactions in this experiment Reaction I(AHN): An aqueous solution of sodium hydroxide reacts with an aqueous solution of hydrochloric acid, yielding water and an aqueous salt Reaction 2 (AHs): Solid sodium hydroxide reacts with water, yielding aqueous sodium hydroxide . Reaction 3 (AHR): An aqueous solution of hydrochloric acid reacts with solid sodiu Reaction 1 (AHN)HCl(aq)+ NaOH(aq) NaCl(aq) + H20() 2 (AHs) hydroxide, yielding water and an aqueous salt AH (kJ/mol) Balanced...
Use the law of conservation of mass to answer the questions. Consider a hypothetical reaction in...
Use the law of conservation of mass to answer the questions. Consider a hypothetical reaction in which A and B are reactants and C and D are products. If 13 g of A completely reacts with 21 g of B to produce 18 g of C, how many grams of D will be produced? A 3.6 g sample of sodium hydrogen carbonate is added to a solution of acetic acid weighing 10.1 g. The two substances react, releasing carbon dioxide...
Use the following information to answer the next two questions The reaction between sodium phosphate and...
Use the following information to answer the next two questions The reaction between sodium phosphate and calcium chloride result in the formation of a precipitate. 3. The volume of a 1.85 mol/L solution of Na3PO4 (aq) required to completely react with 1.50 L of a 1.60 mol/L solution of CaCl2(aq) is 0.865 L 1.95 L 1.30 L 2.96 L 4. The mass of precipitate produced when 1.50 L of a 1.60 mol/L solution of CaCl2(aq) completely reacts is 9. (Record...
LAB PARTNER Pre-Lab Questions Answer questions 1-6 after you have read the lab experiment and studied titration in your textbook (section 7.5) and/or in the lab manual (pages xxi-xxiv). Show your work fully and clearly. Calculate the molar mass of NaOH and the molar concentration of a solution containing 3.978 g of NaOH in 750.0 mL 1. Calculate the number of moles of HCl in 50.00 mL of 0.1444 M HCl. 2. Continued on the next page. 3. Calculate the...
Consider the spectrum of [V(H2O).]3+ in aqueous solution below and answer the questions that follow 17,000 cm 24,500 cm Absorbance Warenumber cm (a) What is the free-ion term for the electronic arrangement of the metal-ion? Use the appropriate Tanabe-Sugano diagram to assign the absorbance bands in the spectrum above Which transition is not observed in the spectrum? Suggest a reason why only two absorption bands are observed Determine the B Racah parameter Show all calculations. (e) Determine the Ao parameter...
Consider the spectrum of [Cr(NH3).]* in aqueous solution below and answer the questions that follow 350 nm 465 mm logie/l mol-'cm') 400 2/nm 200 (50 000 cm') (25 000 cm 600 (17 000 cm" (1) Use the appropriate Tanabe-Sugano diagram to assign the absorbance bands in the spectrum above (11) Which spin-allowed transition is not observed in the spectrum? Suggest a reason why only two absorption bands are observed (111) Determine the B Racah parameter Show all calculations (iv) Determine...
T H E HUL I giups, UI CUPY WILT Work 1) Refer to the following information for parts a-d: The calcium ion is among the most important minerals for the human body. Maintaining proper calcium levels over a lifetime is strongly correlated with osteoporosis prevention. The recommended daily allowance (RDA) of calcium is 1.200 mg daily. Calcium supplements are available as calcium carbonate and calcium citrate, Ca (C.HSO). a. What is the mass percent of calcium in calcium citrate? b....
I need help with the following questions 1,2,3 the molarity for
Sodium Carbonate is .50 and for Calcium Nitrite is .25 the volume
for both is 100mL
Lab 7 Post-Lab Upload Write out the molecular, ionic, and net ionic equations for the precipitation reaction (you should already have these in your notebooks from lab. Make sure the molecular equation is properly balanced, we will use it for the below calculations. Molecular: Naz CO3(aq) + Ca(NO3)2(aq) - 2 NaNO3)(aq) + CaCO3...
Please help me with questions 7-12.Thanks
Part 1: Observations, Data and Calculations 1. In the table, describe your observations when the different solutes were dissolved in tap water and when vinegar was added into the solution. (2 marks) Table 1: Solubility and reactivity Solute Solubility in water Reactivity with vinegar Baking soda Sugar Salt 2. (1.5 marks) Write a chemical equation to represent what you observed when you added each solute to water. 3. (0.5 mark) Write a chemical equation...
all 4 questions. plz mark the answer clearly.
For the Following Questions: Consider the reaction of Fe(NO3)2 (aq) and KOH(aq). Follow each part to find the correct Molecular, Complete lonic, and Net lonic Equation for this reaction. Solubility rules are very useful when determining the physical states of the products. Solubility Rules for Ionic Compounds Substance Na, K, NHA, NO; SO4 CI, Br",r Ag ОН Rules Ionic compounds which contain these ions are soluble. Most ionic compounds containing sulfate are...
DATA ANALYSIS I. You conducted the following three reactions in this experiment Reaction I(AHN): An aqueous solution of sodium hydroxide reacts with an aqueous solution of hydrochloric acid, yielding water and an aqueous salt Reaction 2 (AHs): Solid sodium hydroxide reacts with water, yielding aqueous sodium hydroxide . Reaction 3 (AHR): An aqueous solution of hydrochloric acid reacts with solid sodiu Reaction 1 (AHN)HCl(aq)+ NaOH(aq) NaCl(aq) + H20() 2 (AHs) hydroxide, yielding water and an aqueous salt AH (kJ/mol) Balanced...
Use the law of conservation of mass to answer the questions. Consider a hypothetical reaction in which A and B are reactants and C and D are products. If 13 g of A completely reacts with 21 g of B to produce 18 g of C, how many grams of D will be produced? A 3.6 g sample of sodium hydrogen carbonate is added to a solution of acetic acid weighing 10.1 g. The two substances react, releasing carbon dioxide...
Use the following information to answer the next two questions The reaction between sodium phosphate and calcium chloride result in the formation of a precipitate. 3. The volume of a 1.85 mol/L solution of Na3PO4 (aq) required to completely react with 1.50 L of a 1.60 mol/L solution of CaCl2(aq) is 0.865 L 1.95 L 1.30 L 2.96 L 4. The mass of precipitate produced when 1.50 L of a 1.60 mol/L solution of CaCl2(aq) completely reacts is 9. (Record...
Most questions answered within 3 hours.
-
The energy required to remove an electron from a surface of a
solid element is called...
asked 8 minutes ago -
How would you train your employees to avoid risks of using
mobile devices?
asked 30 minutes ago -
Assume Kw = 1.01 ✕ 10−14
For pure water, we can calculate [H3O+ ] = [OH...
asked 1 hour ago -
Suppose that on a temperature scale X, water boils at 203.0°X
and freezes at -105.7°X. What...
asked 2 hours ago -
BaS crystallizes in a cubic unit cell with S2- ions on each
corner and each face....
asked 2 hours ago -
A. 0≤P(Oi)≤10≤P(Oi)≤1 for each i
B. P(Oi)≤0P(Oi)≤0
C. P(Oi)=1+P(OCi)P(Oi)=1+P(OiC)
D. P(Oi)≥1P(Oi)≥1
If an experiment consists of...
asked 4 hours ago -
A battery has an emf of 9.20V and an internal resistance of 1.20
ohm. a)What resistance...
asked 4 hours ago -
The area of an elastic circular loop decreases at a constant
rate, dA/dt = −6.60×10−3 m2/s...
asked 5 hours ago -
The denaturation of proteins can be described by the
equilibrium
F⇌U
where F and U represent...
asked 6 hours ago -
Please answer what the maximum and minimum force is, and the
angle on the ion is...
asked 6 hours ago -
implement a program that reads a number of rows and a symbol.
The program will draw...
asked 7 hours ago -
Assume that when adults with smartphones are randomly selected,
45% use them in meetings or classes....
asked 7 hours ago