Percent yields.your teacher decomposes CaCo3 to Produce CaO and Co.they tell that 12.3g of CaO was produce with a percent yield of 87.5% .find the theoretical yields of CaO in the reaction CaCo3-----CaO +Co2
1. Percent yields.your teacher decomposes CaCo3 to Produce CaO and Co.they tell that 12.3g of CaO was produce with a percent yield of 87.5% .find the theoretical yields of CaO in the reaction CaCo3-----CaO +Co2
Answer:
Ernest Z. The percent yield is 45 %.
2. Cao Cao white suggest treachery, suspiciousness and craftiness.true or false
Answer:
true
Explanation:
no explanation na po :>
3. which is the correct representation of the reaction a.CaO+H2O-----Ca+H30 b. CaO+H2O-----Ca(OH)2 c. 2Cao+H2O------Cao d.Ca(OH)2----CaO+H2O
Answer
B. CaO+H2O=Ca(OH)2.
4. For the balanced equation shown below, if the reaction of 30.7 grams of CaCO3 produces 9.81 of CaO, What is the percentage yield? CaCO3=>CaO+CO2
Answer:
Kaibigan anong sagot
Explanation:
Kaibigan anong sagot kaibigan
5. Ano ang kahulugan ng cao
Answer:
What kind of Cao?
Thers a different kind of cao
6. CaO Nomenclature name acid
Answer:
jfjdndkdkkemdodkkdddlekekemmdoxk
7. what is the mass in grams of 7.50 mol of CaO? molar mass of CaO = 56.08 g/mol
Answer:
420.6 grams
Explanation:
mass = Molar mass × mole
mass = 56.08 g/mol × 7.5 mol
mass = 420.6 grams
8. what is the the common name of CaO? in science
Answer:
commonly known as quicklime or burnt lime, is a widely used chemical compound. It is a white, caustic, alkaline, crystalline solid at room ...
calcium oxide
9. what is the ions formed of ca+ o=cao
Answer:
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10. Ipinakilala mo ang iyong tatay sa iyong kaibigan na si MARK ANTHONY.A.Mark / Anthony / ang tatay ko.B.Mark Anthony / Ang tatay ko.C.Mark Anthony ang tatay ko.D.Mark / Anthony ang tatay ko.
Answer:
mark anthony ang tatay mo.
Explanation:
si mark anthony tatay mo✅✅
11. For the balanced equation shown below, if the reaction of 20.7 grams of CaCO3 produces 6.81 grams of CaO, what is the percent yield?CaCo3 => CaO + CO2
Solution:
Step 1: Calculate the molar mass of CaCO₃ and CaO.
For CaCO₃
molar mass = (40.08 g/mol × 1) + (12.01 g/mol × 1) + (16.00 g/mol × 3)
molar mass = 100.09 g/mol
For CaO
molar mass = (40.08 g/mol × 1) + (16.00 g/mol × 1)
molar mass = 56.08 g/mol
Step 2: Determine the mole ratio needed.
mole ratio = 1 mol CaCO₃ : 1 mol CaO
Step 3: Calculate the theoretical yield of the reaction (mass of CaO produced).
[tex]\text{theoretical yield = 20.7 g CaCO₃} × \frac{\text{1 mol CaCO₃}}{\text{100.09 g CaCO₃}} × \frac{\text{1 mol CaO}}{\text{1 mol CaCO₃}} × \frac{\text{56.08 g CaO}}{\text{1 mol CaO}}[/tex]
[tex]\text{theoretical yield = 11.6 g}[/tex]
Step 4: Calculate the percent yield of the reaction.
[tex]\text{percent yield} = \frac{\text{actual yield}}{\text{theoretical yield}} × 100[/tex]
[tex]\text{percent yield} = \frac{\text{6.81 g}}{\text{11.6 g}} × 100[/tex]
[tex]\boxed{\text{percent yield = 58.7\%}}[/tex]
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12. 1. Explain the characteristics and the color which has been used that is being portrayed by the cao-cao
Answer
In Peking Opera, the white color symbolizes sinister, treacherous, and suspicious traits. It also signifies powerful, cunning, and crafty characters. Being crafty means clever at achieving a goal by indirect or deceitful methods. That is why the white color is often used to emphasize powerful and cruel villains, like Prime Minister Cao Cao, in a Peking Opera.
Cao Cao is one of the main characters in stories like "Romance of the Three Kingdoms" by Luo Guanzhong and the Peking Opera, "Meeting of the Elite."
Learning more about Visual Art - brainly.ph/question/2809402
#BrainlyFast
13. 2. If A={John, Carl} and B={Josephine, Anthony}, find U .A. U = {John, Carl, Josephine} B. U = {John, Anthony}C. U = {John, Carl, Anthony}D. U = {John, Carl, Josephine, Anthony}
Answer:
D. U={Jhon,Carl,Josephine,Anthony}
Step-by-step explanation:
The UNION/ (U) of two or more sets is the set that contains ALL elements of the sets.
14. Calculate the percent composition of oxygen in CaO?
Answer:
The mass percent of oxygen in the given calcium oxide (CaO) is 28.57%.
The given parameters;
compound = CaO
The molecular mass of the given calcium oxide (CaO) is calculated as follows;
CaO = 40 + 16 = 56 g/mol
mass of oxygen = 16
The mass percent of oxygen in the given calcium oxide (CaO) is calculated as follows;
\begin{gathered}mass \ percent = \frac{16}{56} \times 100\%\\\\mass \ percent = 28.57 \ \%\end{gathered}
mass percent=
56
16
×100%
mass percent=28.57 %
Thus, the mass percent of oxygen in the given calcium oxide (CaO) is 28.57%.
Learn more here:https://brainly.com/question/20164158
15. For avestions number 21:23: Consider the alven problem: Before performing an experiment Mateo calculated that the reaction 7 experiment he found out that only 6.81 grams of Cao was produced grams of CaCO, will produce 11.59 grams Cao. After performing the 21. What is the actual yield a. Actual Yield is 11.59 grams Cao b. Actual Yield is 6.81 grams Cao c. Actuall Yield is 58.75 grams Cao 22. What is the theoretical yield? a. Theoretical Yield is 11.59 grams Cao b. Theoretical Yield is 6.81 grams Cao c. Theoretical Yield is 58.75 grams Cao 23. What is the percent yield? a. 6.81% b. 170.19%c. 58.75% 498aneider the
Answer:
=NONSENSE=▶️REPORT◀️ =✅CORRECT✅=✔️BRAINLIEST✔️
16. Find the mass % of Lime,CaO
Answer:
Based on the chemical analysis of the limestone in our example (i.e. calcium oxide, CaO = 45.50% and magnesium oxide, MgO = 8.16%), this calculation assumes that all the calcium and magnesium is present as carbonates - whereas, a small, and probably insignificant, amount may occur as silicates etc17. Calculate the number of moles of HF in a 75.0g sample. Molar mass of HF=20.01 g/mol UNKNOWN: mole of HF Final answer: What is the mass in grams of 7.50mol of (calcium oxide) CaO? Molar mass of CaO = 56.08 g/mol UNKNOWN: mass of CaO Final answer
[tex]\large \bold {SOLUTION}[/tex]
Calculate the number of moles of HF in a 75.0g sample.
Step 1: Have a conversion factor that will be used on the equation
1 mole of HF is equivalent to 20.01 g/molStep 2: Solve the equation
(75.0g HF)(1 mol HF / 20.01 g HF)
= 3.75 mol HF
What is the mass in grams of 7.50mol of (calcium oxide) CaO?
Step 1: Have a conversion factor that will be used on the equation
1 mole of CaO is equivalent to 56.08 g/mol
Step 2: Solve the equation
(7.50 mol CaO)(56.08 g CaO / 1 mol CaO)
= 421 g CaO
18. *CAO in Chi n ese is a slang means?
Answer:
*CAO in Chi n ese is a slang means?
19. type of atom of CaO
Answer:
Calcium oxide (CaO),
calcium oxide is illustrated below. Thus, it can be understood that calcium oxide is an ionic compound featuring an ionic bond between calcium and oxygen.
20. what is the element of CaO
Calcium Oxide
Explanation:
#BRAINLIEST ANSWER
21. Red:guan ju;white:a. Cao caob. Zhang feic. Zhu wen d. Huang pan.
Answer:
b. Zhang feiExplanation:
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22. Which of the following symbilizes fierceness and roughness ?A. Zhang Fei B. Lian PoC. Zhu WenD. Cao cao
Answer:
A.Zhang Fei
Explanation:
Zhang Fei - Black symbolizes roughness and fierceness
23. 8. It signifies fierceness, ambition, and cool-headedness.a. Guan Jub. Huang Pangc. Zhu Wend. Cao Cao
b. Huang Pang
pa brainlist na den salamt po
24. sino ang pinuno ng CAO
Answer:
baka si jackiechan
Explanation:
sana makatulong po sa inyo
25. what is the reactant of CaO + CO2???
Answer:
Decomposition of limestone to calcium oxide
Explanation:
Hope it helps
26. It means treachery,suspiciousness,craftiness, powerfulvillain on the stage.a. Jiang Ganb. Lain Poc. Cao Cao
Answer:
Letter C
Explanation:
Correct me if im wrong
27. what is the mass in grams of 7.50 mol of CaO?
SOLUTION:
Step 1: Calculate the molar mass.
The molar masses of Ca and O are 40.078 g and 15.9994 g, respectively.
[tex]\begin{aligned} \text{molar mass} & = \text{40.078 g + 15.9994 g} \\ & = \text{56.08 g} \end{aligned}[/tex]
Step 2: Calculate the mass by using dimensional analysis.
[tex]\begin{aligned} \text{mass of CaO} & = \text{7.50 mol CaO} \times \frac{\text{56.08 g CaO}}{\text{1 mol CaO}} \\ & = \boxed{\text{420.6 g}} \end{aligned}[/tex]
Hence, there are 420.6 g in 7.50 moles of CaO.
[tex]\\[/tex]
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28. CaO+CO2=CHCO3what is product
Answer:
calcium oxide
Explanation:
correct me if im wrong but that what i know
29. *CAO in Chinese is a slang means?
Answer:
pa brainliest nalang po
Explanation:
heheeh
30. what is the mass in grams of 7.50 mol of CaO?molar mass of CaO = 56.08 g/mol
Answer:
How many moles CaO in 1 grams? The answer is 0.017832495800447. We assume you are converting between moles CaO and gram. You can view more details on each measurement unit: molecular weight of CaO or grams This compound is also known as Calcium Oxide. The SI base unit for amount of substance is the mole. 1 mole is equal to 1 moles CaO, or 56.0774 grams. Note that rounding errors may occur, so always check the results. Use this page to learn how to convert between moles CaO and gram. Type in your own numbers in the form to convert the units!
