What point defects are possible for Cr2O3 as an impurity in Na2O? How many of these defects are f...
What point defects are possible for Cr2O3 as an impurity in Na2O? How many of these defects are formed for each Cr3+ ion addition?
Homework Answers
Impurity defects which are types of stiochoimetric defects will be there because adding one Cr3+ will replace 3 Na+ ions to maintain neutrality and itsef occupies one of these three sites and other two sites remain vacant . These cationic vacancies(defects) are double to the number of Cr3+ added .
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What point defects are possible for Cr2O3 as an impurity in Na2O? How many of these defects are f...
answer all please 1. What is the mass of 1.25 moles of Na2O? 2- How many...
answer all please
1. What is the mass of 1.25 moles of Na2O? 2- How many moles are in 100 gram of KOH? K-391 almoles 39.1 +16.0+1 01:56.11g/mole 0 16.0 mole (16)/(56.119/mole) 4- 1.01 almole 3. How many grams are in 5 moles of KOH? 6.76 4. Find the mass of 7.5 moles of KOH. 5. Find the % composition of individuals in, Kmn04 %K %Mn= %0= 6- How many gram of S is in 12 gram Pb(SO4)2? 7- How...
4 Na(s) + O2(g) → Na2O(s) a. How many grams of sodium are needed to completely...
4 Na(s) + O2(g) → Na2O(s) a. How many grams of sodium are needed to completely react with 2.80 liters of Oz at STP? b. What volume of O, at 25°C and 2.00 atm is needed to completely react with 4.60 grams of sodium?
1. What is the expected product melting point if the bromination of stilbene by PHPB is...
1. What is the expected product melting point if the bromination of stilbene by PHPB is completely stereospecific (anti addition)? 2. How would the melting point be affected if the reaction is not completely stereospecific and the dibromide product contains significant amounts of dl-stilbene dibromide, as well as the expected meso stilbene dibromide? Note the widely differing melting points of the meso and dl isomers. 3. What is the theoretical yield of dibromide product in the bromination reaction? 4. How...
help as soon as possible b. How many products will be formed in the reaction below?...
help as soon as possible
b. How many products will be formed in the reaction below? (Do not show them) 1. NaOEVEIOH 2. Hyo What can you change, without altering the structures, to make only one product. selectively? Show the structure of that only product: 3. (10) Show in detail (e.g., order of addition) how you will synthesize the target and provide the full mechanism. (Hint: did you recognize the reaction?) some carbonyl compound+ needed reagents
what are the answers to 26 and 30? 26) How many resonance structures (including the one...
what are the answers to 26 and 30?
26) How many resonance structures (including the one shown) are possible for the indicated ion? A) None B) One C) Two D) Three E) Four 30) When the orbitals of two hydrogen atoms combine to form a hydrogen molecule, how many molecular orbitals are formed ? A) One B) Two C) Three D) Four E) Five
Organic Chemistry Lab question In the experiment we did acid-base extractions to find impurities. The impurity...
Organic Chemistry Lab question In the experiment we did acid-base extractions to find impurities. The impurity was either benzoic acid (acid) or 4-chloroaniline (base) So in this experiment we did Acid-Base extraction with an unknown compound. So we had an unknown of 0.150 grams and mixed it with 20 mL of diethyl ether. We placed this in a separatory funnel and added 2mL of 1.0 NaOH solution to the separatory funnel and placed the stopper over the top of the...
I know there are 32 possible gametes for f, but I am not sure how to...
I know there are 32 possible gametes for f, but I am not sure
how to go about figuring out what all of them are, please help.
Thank you!
4. How many different types of gametes can be formed by individuals of the following genotypes: a) AaBb b) AaBB c) AaBbcc d) AaBBcc e) AaBbcc f) AaBbCcDcEd What are the gametes in each case?
Suppose that 4 tables in a production run of 50 are defective. A sample of 7 is to be selected to be checked for defects 9. How many different samples can be chosen? a. How many samples will contain...
Suppose that 4 tables in a production run of 50 are defective. A sample of 7 is to be selected to be checked for defects 9. How many different samples can be chosen? a. How many samples will contain at least one defective table? b. What is the probability that a randomly chosen sample of 7 contains at least one defective table? c.
Suppose that 4 tables in a production run of 50 are defective. A sample of 7 is...
(1 point) A coin is tossed 9 times a) How many different outcomes are possible? b)...
(1 point) A coin is tossed 9 times a) How many different outcomes are possible? b) What is the probability of getting exactly 5 heads? c) What is the probability of getting at least 2 heads? d) What is the probability of getting at most 5 heads?
QUESTION 5 1 point possible graded All of the genetic defects described below exist at very...
QUESTION 5 1 point possible graded All of the genetic defects described below exist at very low frequency in the human population. Which loss-of- function mutation would be most likely to lead to autoimmune disease? Assume each mutation causes a complete loss of function of the associated gene. O Disruption of the RFXS gene which is necessary for proper MHC class Il expression Disruption of the RAG1 gene which is necessary for VID recombination O Disruption of the FOXP3 gene...
answer all please
1. What is the mass of 1.25 moles of Na2O? 2- How many moles are in 100 gram of KOH? K-391 almoles 39.1 +16.0+1 01:56.11g/mole 0 16.0 mole (16)/(56.119/mole) 4- 1.01 almole 3. How many grams are in 5 moles of KOH? 6.76 4. Find the mass of 7.5 moles of KOH. 5. Find the % composition of individuals in, Kmn04 %K %Mn= %0= 6- How many gram of S is in 12 gram Pb(SO4)2? 7- How...
4 Na(s) + O2(g) → Na2O(s) a. How many grams of sodium are needed to completely react with 2.80 liters of Oz at STP? b. What volume of O, at 25°C and 2.00 atm is needed to completely react with 4.60 grams of sodium?
help as soon as possible
b. How many products will be formed in the reaction below? (Do not show them) 1. NaOEVEIOH 2. Hyo What can you change, without altering the structures, to make only one product. selectively? Show the structure of that only product: 3. (10) Show in detail (e.g., order of addition) how you will synthesize the target and provide the full mechanism. (Hint: did you recognize the reaction?) some carbonyl compound+ needed reagents
what are the answers to 26 and 30?
26) How many resonance structures (including the one shown) are possible for the indicated ion? A) None B) One C) Two D) Three E) Four 30) When the orbitals of two hydrogen atoms combine to form a hydrogen molecule, how many molecular orbitals are formed ? A) One B) Two C) Three D) Four E) Five
I know there are 32 possible gametes for f, but I am not sure
how to go about figuring out what all of them are, please help.
Thank you!
4. How many different types of gametes can be formed by individuals of the following genotypes: a) AaBb b) AaBB c) AaBbcc d) AaBBcc e) AaBbcc f) AaBbCcDcEd What are the gametes in each case?
Suppose that 4 tables in a production run of 50 are defective. A sample of 7 is to be selected to be checked for defects 9. How many different samples can be chosen? a. How many samples will contain at least one defective table? b. What is the probability that a randomly chosen sample of 7 contains at least one defective table? c.
Suppose that 4 tables in a production run of 50 are defective. A sample of 7 is...
(1 point) A coin is tossed 9 times a) How many different outcomes are possible? b) What is the probability of getting exactly 5 heads? c) What is the probability of getting at least 2 heads? d) What is the probability of getting at most 5 heads?
QUESTION 5 1 point possible graded All of the genetic defects described below exist at very low frequency in the human population. Which loss-of- function mutation would be most likely to lead to autoimmune disease? Assume each mutation causes a complete loss of function of the associated gene. O Disruption of the RFXS gene which is necessary for proper MHC class Il expression Disruption of the RAG1 gene which is necessary for VID recombination O Disruption of the FOXP3 gene...
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