a.) a= ~109° b=120° b.) a= ~120° b= ~109° c.) a= ~120° b=120° d.) a= ~109° b =~109°

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Q: What volume will 55.6 g of N2 occupy at STP?

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Q: 8. Determine the enthalpy for the following reaction, given AH (NH3(g)) =-46.1 kJ/mol, AH, (NO(g)) =...

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Q: The physician orders 0.2 g of zidovudine every 4 hours for an HIV patient. The medication is availab...

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Q: Write the chemical equation for the standard molar enthalpy of formation of ammonium perchlorate, NH...

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Q: Draw the Lewis structure cre

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Q: 5. Using data below and other data in your text if necessary, calculate the enthalpy change for the ...

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Q: Which does NOT describe titration process? a. It requires the addition of an indicator b. The setup ...

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Q: At what temperature (in °C) would a 0.00570 M solution of glucose in vater exhibit an osmotic pressu...

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Q: Another reagent that can be used to convert carboxylic acids into acid chlorides is phosphorus trich...

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Q: Provide the name of thge structure

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Q: Heating ammonium hydrogen sulfide leads to decomposition.    NH4HS(s)    --->   NH3(g) + H2S(g)     ...

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Q: 6. Metallic Cd reacts Cd (s) + 2 I The enthalpy change assoc

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Q: A gas, AB, decomposes and the volume of B2 produced is measured as a function of time. The data obta...

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Q: [H+] of a solution

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Q: The rate of the decomposition of hydrogen peroxide, H2O2, depends on the concentration of iodide ion...

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Q: Calculate the energy of a photon in units of kJ/mol when it is emitted with a wavelength of 97.2nm.

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Q: Using the known value for the Ka for acetic acid (1.76x10^-5),calculate the expected ph of an acetic...

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Q: 2. H20 at 2 bar and 25 °C

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Q: Draw the chemical structures for ethyl acetate, acetone, methyl alcohol, and n-hexane.

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Q: CH3 Pt/C H2 + CH3

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Q: A solution of toluene (C-Hs) in 236 g of cyclohexane (C6H12) has a boiling point of 90.30 °C. What q...

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Q: Determine Kcand Kp at 298 K for the reaction: NOBr(g) = ½ N2(g) + ½ O2(g) + ½ Br2(g) from the follow...

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Q: Given the following three sequential reactions: 1) N2(g) + 3H2(g) → 2NH3(g) 2) 4NH3(g) + 502(g) → 4N...

A: Given:  Mass of nitrogen dioxide = 108 kg = 108000 g And molar mass of nitrogen dioxide= 46 g/mol  

Q: what molecule is this

A: The IUPAC name of this molecule is (±)-cis-3-(6-Phenyl-9H-purin-9-ylmethyl)indanol

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Q: Which of the following represents the balanced net ionic equation for the reaction between CuCl2(aq)...

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Q: Determine Kc and K, at 298K for the reaction: NOBr(g) = ½ N2(g) + ½ O2(g) + ½ Br2(g) from the follow...

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Q: Vhich of the following Newman projections does not represent 2-methylhexane? CH H. CH(CH;)2 H. CH,CH...

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Q: A substance undergoes first-order decomposition. After 37 min at 500°C, only 12.5% of the original s...

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Matter and Measurement

In the universe, there is matter, energy, and void space. The universe contains energy and void space. The definition of matter can be considered as something which possesses mass and consumes space. Chemistry is that branch of science which deals with the study of matter. Under chemistry, nature, composition, and the changes occurring to matter are discussed.