Seoyeon needs to prepare a 250 mL solution of 0.1000 M Na2CO3. Which glassware should she use to prepare the solution? 250-mL volumetric flask 250-mL graduated cylinder 250-mL Erlenmeyer flask 250-mL beaker

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Q: -1 3) The IR absorption at 1630 cm belongs to (a) CH;-C=N )CH>-CH=CHICH, (c) CH2=CH-CH=CH-CH2 (d) H-...

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A: The most convenient way of expressing the random error is 

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Q: Which of the following conclusions concerning the concentration-time plot provided below is/are corr...

A: Chemical kinetics is branch of chemistry in which we deal with rate of reaction.

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A: The reaction given is, => S + 2 e- → S2-  

Q: Determine the concentration of 7.13 g zinc nitrate (MW = 189.4 g/mol) dissolved in 200.0 mL distille...

A: Ans. Molecular weight of  zinc nitrate Zn(NO3)2 = 189.4g/mol       mole in 7.13 gm of Zn(NO3)2 = 7.1...

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A: The answer is as follows:  

Q: Calculate the percentage of nitrogen, N, in dinitrogen trioxide, N203. A. 46.7% B. 18.4% C. 36.8% D....

A: The molecular weight of N2O3 is (14×2+16×3)=76 gm/mol Weight of nitrogen in N2O3 is (14×2)=28gm

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Q: How many moles of NaOH are present in 12.5 mL of 0.210 M NaOH?

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Q: Determine the concentration of A in 2A -> product second order reaction after 45 seconds. Use the gi...

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Q: a) CH3-CH2 CH2-CH3 b) CH3 -CH2-CH=CH-CH2-CH3

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Q: At 2000 °C, N2(g) + O2(g)  2 NO(g); Kc = 4.10 x 10-4 What is Kp for this reaction?     2.17 x 10-...

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Q: please solve for part a & b .. im really lost and don’t know how to go about it , thank you!

A: We have to find out the ∆H,∆S and Tb, Tf  for the following reaction .,  

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Q: When 6 moles of H₂ reacted with 3 moles of N₂ to produce, NH₃, which is the limiting reactant?

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Q: Name one example or type of colloids that is used in or found in Agricultural system and briefly dis...

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Q: At equilibrium, what is the value of ΔGrxn? < 1 < 0 = 1 = 0

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Q: Determine the concentration of 7.13 g zinc nitrate (MW = 189.4 g/mol) dissolved in 200.0 mL distille...

A: Given, Weight of zinc nitrate = 7.13 g Molecular weight (MW) of zinc nitrate = 189.4 g/mol Volume of...

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A: The equilibrium constant is much greater than one signify that:

Q: Balancing Chemical Equations   NH3 + O2        NO + H2O

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Q: Aluminium metal reacts with sulphuric acid, H2SO4, to yield aluminium sulphate and hydrogen gas. Cal...

A: Aluminium metal reacts with sulphuric acid, H2SO4, to yield aluminium sulphate and hydrogen gas. The...

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Q: At 100°C and 2 bar pressure, the degree of dissociation of phosgene is 6.30 x 10-0. Calculate the eq...

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Q: Calculate the energy separations in joules , kilojoules per mole , electronvolts , and reciprocal ce...

A: The energy of nth level of 1D box is given by relation - E = (n2h2)/(8ma2) ΔE = Ef - Ei