(please explain well, I posted this equestion but did not understand the answer) Find the moles...
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(please explain well, I posted this equestion but did not
understand the answer)
Find the moles...
I had already posted this but did not understand the answer. Please show all work and...
I had already posted this but did not understand the answer.
Please show all work and steps thanks!
Problem 4. Solve the linear non-homogeneous equation for r = r(t) with initial conditions ë+ 4.+ 5x = 10t + 13, 2(0) = 2, i(0) = 0.
I don’t understand the answer to my question that I have posted. Question to: “Number of...
I don’t understand the answer to my question that I have posted. Question to: “Number of moles of Pantothenic acid in 300 mg?”
1. Choose the correct answer(s) to complete the following statement: One mole of oxygen (O2) gas...
1. Choose the correct answer(s) to complete the following statement: One mole of oxygen (O2) gas is equivalent to _____________________. I. 6.022 × 1023 molecules of oxygen II. 6.022 × 1023 atoms of oxygen III. one mole of oxygen atoms IV. two moles of oxygen atoms 2. 50.0 g of Cl2 contains ________ mol Cl2. a. 0.705 b.1.41 c. 4.24 × 1023 d. 1775 e. 50.0 3. The number of grams in 0.350 mol of Na is a. 11.0. b....
Help me solve and understand this: NA = 6.022 x10 23 mole -! 1. Calculate the...
Help me solve and understand this:
NA = 6.022 x10 23 mole -! 1. Calculate the following: c) the number of moles contained in 4.239 of methane (CH4) (b) the number of atoms in 7.469 of Li © the number of molecules in 43.0 g of NHz (ammonia) d) the number of grams in 2.969 x 1022molecules of CCl4 let chloride) 2. Find the percent composition of each element in acetamide, CaH NO (please use two places past the decimal(ie....
**Please explain and do questions so that I understand.. Thank you! Consider the following: 0.358 moles...
**Please explain and do questions so that I understand.. Thank you! Consider the following: 0.358 moles of C6H3(COOH)3. a. The total number of carbons atoms b. The total number of atoms
please answer asap i will rate thumbs up 1- Calculate the following: A- Number of moles...
please answer asap i will rate thumbs up
1- Calculate the following: A- Number of moles in 10 gram of Cr(NO3)s. B- Number of Atoms in 2.5 gram of Cr(NO3)s. C- Number of molecules in 100 gram of Fe(NO3)3. D- Number of grams in 10 20 atoms of MgBr2.
Please explain thouroughly I want to understand how to answer these three questions as well as...
Please explain thouroughly I want to understand how to answer these
three questions as well as answer to see what I’m doing wrong.
1. If you had 350 ml of a 2.5M aqueous solution of C2H,O what would you have to do to get the molarity of it to 1.8M? Be specific. (2) the following chemical teaction. (2) MgS (aq) + CuC, (aq) Cus (s)+MgCl, (oq) say what is being oxidized and reduced for the 2. Write the complete and...
answer number three please using the equation provided. I dont understand. thanks! 21'(aq) + 2NO2 (aq)...
answer number three please using the equation provided. I dont
understand. thanks!
21'(aq) + 2NO2 (aq) + 4H(aq) - 12(aq) + 2NO(aq) + 2H2O(1) [Eq. 3] (Note from this equation, that in the experiment, the number of moles of iodide ion present is twice the number of moles of iodine that will be determined by the absorbance measurements. That is, the mole ratio of 12:I" is 1:2. You will not need to account for this mole ratio explicitly, if you...
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...
I don't understand this question at all or what is required to answer it, please explain....
I
don't understand this question at all or what is required to answer
it, please explain.
Question 49 Passage 9 (Questions 49 - 52) Scuba divers must carry specialty equipment that allows them to breathe underwater However, often overlooked is the equipment that allows them to navigate comfortably. A scuba diver in cool waters must wear an insulated wet or dry suit, which is usually composed of neoprene and contains about 40% air by volume. The diver also wears a...
I had already posted this but did not understand the answer.
Please show all work and steps thanks!
Problem 4. Solve the linear non-homogeneous equation for r = r(t) with initial conditions ë+ 4.+ 5x = 10t + 13, 2(0) = 2, i(0) = 0.
Help me solve and understand this:
NA = 6.022 x10 23 mole -! 1. Calculate the following: c) the number of moles contained in 4.239 of methane (CH4) (b) the number of atoms in 7.469 of Li © the number of molecules in 43.0 g of NHz (ammonia) d) the number of grams in 2.969 x 1022molecules of CCl4 let chloride) 2. Find the percent composition of each element in acetamide, CaH NO (please use two places past the decimal(ie....
please answer asap i will rate thumbs up
1- Calculate the following: A- Number of moles in 10 gram of Cr(NO3)s. B- Number of Atoms in 2.5 gram of Cr(NO3)s. C- Number of molecules in 100 gram of Fe(NO3)3. D- Number of grams in 10 20 atoms of MgBr2.
Please explain thouroughly I want to understand how to answer these
three questions as well as answer to see what I’m doing wrong.
1. If you had 350 ml of a 2.5M aqueous solution of C2H,O what would you have to do to get the molarity of it to 1.8M? Be specific. (2) the following chemical teaction. (2) MgS (aq) + CuC, (aq) Cus (s)+MgCl, (oq) say what is being oxidized and reduced for the 2. Write the complete and...
answer number three please using the equation provided. I dont
understand. thanks!
21'(aq) + 2NO2 (aq) + 4H(aq) - 12(aq) + 2NO(aq) + 2H2O(1) [Eq. 3] (Note from this equation, that in the experiment, the number of moles of iodide ion present is twice the number of moles of iodine that will be determined by the absorbance measurements. That is, the mole ratio of 12:I" is 1:2. You will not need to account for this mole ratio explicitly, if you...
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...
I
don't understand this question at all or what is required to answer
it, please explain.
Question 49 Passage 9 (Questions 49 - 52) Scuba divers must carry specialty equipment that allows them to breathe underwater However, often overlooked is the equipment that allows them to navigate comfortably. A scuba diver in cool waters must wear an insulated wet or dry suit, which is usually composed of neoprene and contains about 40% air by volume. The diver also wears a...
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