Homework Answers
Add Answer to:
II. QUESTIONS 1. Calculate the percentage of copper in copper(II) chlorate. 2. Calculate the percentage of...
Let's say you have 25mL of a 3.25M copper (II) chlorate solution a) what is the...
Let's say you have 25mL of a 3.25M copper (II) chlorate solution a) what is the chemical formula of copper (II) chlorate? b) how many moles of copper (II) chlorate would be in the solution? c) How many moles of the copper (II) ion would be in the solution? d) How many of the chlorate ion would be in the solution? e) How many molecules of copper (II) chlorate would be in the solution? f) How many atoms of oxygen...
Percentage of Oxygen in Potassium Chlorate Introduction: The thermal decomposition of potassium chlorate can be described...
Percentage of Oxygen in Potassium Chlorate Introduction: The thermal decomposition of potassium chlorate can be described by the following equation: 2 KCIO3(s) 2 KCls) + 3 O2(g) Egn 1 (D stands for heating, elevated temperature) In this experiment you will determine the percentage of oxygen in potassium chlorate. You will compare the experimental result with the theoretical percentage calculated from the formula KCIO3. While potassium chlorate decomposes simply by heating, the reaction is very slow. A catalyst is used. Catalyst...
Pre-lab Questions for Experiment-7 Hydrates and the Determination of the Formula of a Hydrate 1) What...
Pre-lab Questions for Experiment-7 Hydrates and the Determination of the Formula of a Hydrate 1) What is the color for anhydrous salt of copper (ID) sulfate (CuSO.)? What is the color for ionic hydrate compound of copper (II) sulfate pentahydrate (CuSO4 5H20)? 2) How would you test a colorless rystalline compound to determine if it was a hydrate? 3 1.2008 g of a hydrate of CuSO4" XH O after heated has a mass of 0.7676 g. Calculate the mass percent...
calculate all required B. Percentage of potassium chlorate in a mixture (potassium chlorate+ KCI) IL Mass...
calculate all required
B. Percentage of potassium chlorate in a mixture (potassium chlorate+ KCI) IL Mass of test tube + MnO2 (catalyst, m;)-.13. 1w 3 II Mass of tube + MnO2 +mixture (before heating, ma) =..55.6.39. III Mass of tube + MnO2 + mixture (after heating, m) . .. M.Ami 16/o6/20r 2KCIO3+ (KCI) Heat Ma 2KCI+(KCI)+302 IV Mass of mixture m2- m...8.15.. ..g V. Mass of oxygen m2-m3=..A.2ol mass of oxygen Molecular weight of 0z Moles of oxygen VI. 32...
QUESTIONS 1. Using the MSDS for copper(II) phosphate, is there any danger with this compound? Iuitatimoy...
QUESTIONS 1. Using the MSDS for copper(II) phosphate, is there any danger with this compound? Iuitatimoy te eyes, espirateuy aystem and sKimt May Lerg-term Altre, mawsra, vemitimy and burmime foelima's and othus 2. If your filtrate is blue, why is it this color? caue aaveve elfects un thu bquatic enirom mend DATA AND CALCULATIONS A. SYNTHESIS OF COPPER (II) PHOSPHATE Unknown Letter Mass of copper (II) chloride assigned: Mass of sodium phosphate assigned: Na.PO4 +3CuCla, Cus (Pa)+6Nate Balanced chemical equation:...
CuSO4• 5H20 -------> Custy + D u 2) What is the color for anhydrous salt of copper (II) sulfate (CuSO4)? What is...
CuSO4• 5H20 -------> Custy + D u 2) What is the color for anhydrous salt of copper (II) sulfate (CuSO4)? What is the color for ionic hydrate compound of copper (II) sulfate pentahydrate (CuSO4.5H2O)? 3) How would you test a colorless crystalline compound to determine whether it is a hydrate or not? 4) How many grams of CuSO4.5H20 are needed to prepare 50.0 mL of a 1.00 M CuSO4 solution? 5) Suppose you used the Procedure in this experiment to...
Question 3 [20 points 1. Copper sulfide is produced when copper and sulfur are heated together Use the data below, obtained after the heating process, to determine the empirical formula of this co...
Question 3 [20 points 1. Copper sulfide is produced when copper and sulfur are heated together Use the data below, obtained after the heating process, to determine the empirical formula of this compound. Molar masses (e/mol) c S 32.06. 18 points) befor 1 Mass of crucible cover copper (B) 2 Mass of crucible + cover (g) 3 Mass of copper (B) 4 Mass of crucible cover + copper sulfide at constant weight (8)40.23 S Mass of copper sulfide (8) 6...
answer qeustions please Show all work for full credit. 1. Complete the following table. For each of the hydrates:...
answer qeustions please
Show all work for full credit. 1. Complete the following table. For each of the hydrates: 1) write the chemical formula; 2) calculate the formula mass; and 3) calculate the mass percentage of water. Hydrate Chemical Formula Fomula Mass Mass % Water Nickel(II)chloride hexahydrate Cobalt(II) chloride hexahydrate Copper(II)sulfate pentahydrate 2. A student dehydrated an unknown hydrate. The mass of the compound was initially 4.139. After heating, the mass was 3.52 g. a. Calculate the mass percentage of...
is this right? Step No. 1. Identity Number of the Unknown 3. Mass of test tube...
is this right?
Step No. 1. Identity Number of the Unknown 3. Mass of test tube and total unknown 83.138 5. Mass of test tube and about half unknown g 1-978 7. Mass of test tube (empty) laeall # 2 #1 Mass of filter paper 12. Mass of filter paper and Cu Mass-of filter paper and-Cu 18. 20a. g Calculate Beaker #2 Beaker #1 Lఏ 1 Mass of Unknown sample 21 20b. Mass of recovered copper 22. e by mass...
use the information given on the Nickle II sulfate to do the calculations Calculations: 1. Calculate the formula...
use the information given on the Nickle II sulfate to
do the calculations
Calculations: 1. Calculate the formula mass/molar mass of the anhydrous salt of your unknown sample (show calculations). mass of unknown = 1.099 mass of unknown and hydroussalt -37.40 a mass of water loss = 0.389 2. Calculate the number of moles of the anhydrous salt (show calculations). 3. Calculate the number of moles of water in the unknown hydrate (molars mass of H,0 18.02 g/mol). Show calculations....
Percentage of Oxygen in Potassium Chlorate Introduction: The thermal decomposition of potassium chlorate can be described by the following equation: 2 KCIO3(s) 2 KCls) + 3 O2(g) Egn 1 (D stands for heating, elevated temperature) In this experiment you will determine the percentage of oxygen in potassium chlorate. You will compare the experimental result with the theoretical percentage calculated from the formula KCIO3. While potassium chlorate decomposes simply by heating, the reaction is very slow. A catalyst is used. Catalyst...
Pre-lab Questions for Experiment-7 Hydrates and the Determination of the Formula of a Hydrate 1) What is the color for anhydrous salt of copper (ID) sulfate (CuSO.)? What is the color for ionic hydrate compound of copper (II) sulfate pentahydrate (CuSO4 5H20)? 2) How would you test a colorless rystalline compound to determine if it was a hydrate? 3 1.2008 g of a hydrate of CuSO4" XH O after heated has a mass of 0.7676 g. Calculate the mass percent...
calculate all required
B. Percentage of potassium chlorate in a mixture (potassium chlorate+ KCI) IL Mass of test tube + MnO2 (catalyst, m;)-.13. 1w 3 II Mass of tube + MnO2 +mixture (before heating, ma) =..55.6.39. III Mass of tube + MnO2 + mixture (after heating, m) . .. M.Ami 16/o6/20r 2KCIO3+ (KCI) Heat Ma 2KCI+(KCI)+302 IV Mass of mixture m2- m...8.15.. ..g V. Mass of oxygen m2-m3=..A.2ol mass of oxygen Molecular weight of 0z Moles of oxygen VI. 32...
QUESTIONS 1. Using the MSDS for copper(II) phosphate, is there any danger with this compound? Iuitatimoy te eyes, espirateuy aystem and sKimt May Lerg-term Altre, mawsra, vemitimy and burmime foelima's and othus 2. If your filtrate is blue, why is it this color? caue aaveve elfects un thu bquatic enirom mend DATA AND CALCULATIONS A. SYNTHESIS OF COPPER (II) PHOSPHATE Unknown Letter Mass of copper (II) chloride assigned: Mass of sodium phosphate assigned: Na.PO4 +3CuCla, Cus (Pa)+6Nate Balanced chemical equation:...
CuSO4• 5H20 -------> Custy + D u 2) What is the color for anhydrous salt of copper (II) sulfate (CuSO4)? What is the color for ionic hydrate compound of copper (II) sulfate pentahydrate (CuSO4.5H2O)? 3) How would you test a colorless crystalline compound to determine whether it is a hydrate or not? 4) How many grams of CuSO4.5H20 are needed to prepare 50.0 mL of a 1.00 M CuSO4 solution? 5) Suppose you used the Procedure in this experiment to...
Question 3 [20 points 1. Copper sulfide is produced when copper and sulfur are heated together Use the data below, obtained after the heating process, to determine the empirical formula of this compound. Molar masses (e/mol) c S 32.06. 18 points) befor 1 Mass of crucible cover copper (B) 2 Mass of crucible + cover (g) 3 Mass of copper (B) 4 Mass of crucible cover + copper sulfide at constant weight (8)40.23 S Mass of copper sulfide (8) 6...
answer qeustions please
Show all work for full credit. 1. Complete the following table. For each of the hydrates: 1) write the chemical formula; 2) calculate the formula mass; and 3) calculate the mass percentage of water. Hydrate Chemical Formula Fomula Mass Mass % Water Nickel(II)chloride hexahydrate Cobalt(II) chloride hexahydrate Copper(II)sulfate pentahydrate 2. A student dehydrated an unknown hydrate. The mass of the compound was initially 4.139. After heating, the mass was 3.52 g. a. Calculate the mass percentage of...
is this right?
Step No. 1. Identity Number of the Unknown 3. Mass of test tube and total unknown 83.138 5. Mass of test tube and about half unknown g 1-978 7. Mass of test tube (empty) laeall # 2 #1 Mass of filter paper 12. Mass of filter paper and Cu Mass-of filter paper and-Cu 18. 20a. g Calculate Beaker #2 Beaker #1 Lఏ 1 Mass of Unknown sample 21 20b. Mass of recovered copper 22. e by mass...
use the information given on the Nickle II sulfate to
do the calculations
Calculations: 1. Calculate the formula mass/molar mass of the anhydrous salt of your unknown sample (show calculations). mass of unknown = 1.099 mass of unknown and hydroussalt -37.40 a mass of water loss = 0.389 2. Calculate the number of moles of the anhydrous salt (show calculations). 3. Calculate the number of moles of water in the unknown hydrate (molars mass of H,0 18.02 g/mol). Show calculations....
Most questions answered within 3 hours.
-
Where is the error in this code sequence?
String s1 = "Hello";
String s2 = "ello";...
asked 11 months ago -
Financial data for Joel de Paris, Inc., for last year
follow:
Joel de Paris, Inc.
Balance...
asked 11 months ago -
Consider this reaction:
Al2(SO4)3 (aq)+ BaCl3
(aq) Al2Cl6 (aq)- +
3BaSO4(s) . What is the...
asked 11 months ago -
Suppose that Savneet is considering increasing her
recent random sample from 20 car rentals to 40...
asked 11 months ago -
Trucks arrive at an unloading terminal at an average rate of 120
per hour.
Trucks arrive...
asked 11 months ago -
Why are methanol and ethanol completely soluble in water while
octanol is not very little soluble....
asked 11 months ago -
A facilities manager at a university reads in a research report
that the mean amount of...
asked 11 months ago -
When the CuSO4 is rehydrated by adding water to the anhydrous
compound, is this an endothermic...
asked 11 months ago -
A ray of sunlight is passing from diamond into crown glass; the
angle of incidence is...
asked 11 months ago -
A block of mass 0.249 kg is placed on top of a light, vertical
spring of...
asked 11 months ago -
how do the kidneys compensate in the presences of acidosis
a) trigger hyperventilate
b) reserve acid...
asked 11 months ago -
Question 501 pts
The rental rate of capital to the firm increases. Which of the
following...
asked 11 months ago