A limited number system uses base 12. There are at most

Q: When I set the pressure regulator on the nitrogen, what do I set it to so we can leak check?

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Q: The London dispersion forces are present in O CGH12 HCI О нс O H20 O All of the above

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Q: Name the following compound: SHOO O A. 3-methoxyhex-3-ene O B. (Z)-4-methoxyhex-4-ene OC.…

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Q: Cream of tartar is a white powder sometimes used in baking. (It's what separates a tangy, chewy…

A: Given, Ka=8.73×10-3

Q: Which of the following will be diamagnetic? O Ni²+ O Co3+ OMN²+ Sc3+

A: Given :-   Ni2+  Co3+  Mn2+  Sc3+  To identify :- diamagnetic ion

Q: Identify the molecule with highest viscosity at 298K? O CH3COCH3 O CHs O CH3COOH O CHA O H20

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Q: Question 1l For the compound Br Ci Name the rompound Identify each chiral center c isomers possible…

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Q: A friend asks you to help her find the percent composition by mass of ethane (C,H). She says that…

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Q: 9. Which of the following would show the most similar chemical behavior to 1-butanol, which is shown…

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Q: CUSO4 (aq) + Zn(s) → Cu(s) + ZNSO4(ag) The single-replacement reaction above produces 116.0 g of…

A: Given,  The single-replacement reaction, CuSO4(aq) + Zn(s) --------> Cu(s) + ZnSO4(aq)  Cu…

Q: A worker in a laboratory unknowingly became exposed to a sample of radio-labeled sodium iodide made…

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Q: Choose the substance with the highest boiling point. H H. HF A В O impossible to tell O B

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Q: Part A The metabolism of glucose, CH1206. yields carbon dioxide, CO2(g), and water, H2O(1), as…

A: Given, mass of person = 83 kg Elevation = 1470 m

Q: The Haber process is used to produce ammonia (NH,) fertilizer from nitrogen gas and hydrogen gas.…

A: First we need to balance the given reaction. To calculate moles of Nitrogen , we first need to…

Q: Shown below is a concentration vs. time plot for the reaction A E B. For this reaction the value of…

A: Equilibrium constant is defined as ratio of concentration of products to concentration of reactant.

Q: If we begin with 5.00 mg of iodine-131 (t1/2 = 8.07 hr), how much remains after eight half-life…

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Q: attémpts left Check my work Which compound in each pair has the higher boiling point? CH3 CH2CHO O…

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Q: Ka for HCN is 6.2 x 10-10. Calculate the % ionization and the concentration of all species in a…

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Q: What is the pH of a 0.10 M weak acid with Ka = 1.8 x 10-5 ? 1.56 3.19 2.87 4.45

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Q: Using the grignard reaction of alkanes what is the resulting alkane if the reactant is C4H9Br? a.…

A: Grignard reagent is an organometallic compound. It is formed when an alkyl halide reacts with…

Q: Which of the following technique/s can be used to determine the amino acid sequence of a polypeptide…

A: A technique of chemical sequencing is used for nucleolus-specific partial chemical modification of…

Q: 10. Which of the following structures is not a good chromophore? a. O'Na" so, Na* b. C. d. e. All of…

A: Concept:  Chromopher: A chromophore is the section of a molecule that causes us to see color. The…

Q: Question 13 A plate with an area of 500 cm? is to be coated with a gold layer this take to…

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Q: Consider the apparatus below with the valve closed. The temperature is held constant.When the valve…

A: Entropy is a measure of randomness . If particles move more randomly then entropy of particles would…

Q: A student is told that a solution of 0.650 g of an unknown ionic compound dissolved in 10.0 g of…

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Q: 8. What is the pH of a 0.20 M solution of sodium acetate? The K, for acetic acid is 1.8 x 10-5 ?

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Q: What is the oxidation state of Zn in the product? Is it getting reduced or oxidized or no change in…

A: When the oxidation number increases, then it is oxidation.  When the oxidation number decreases,…

Q: What is the systematic name of the product P of this chemical reaction? CH3-CH2-CH2-C-OH + NaOH P +…

A: Given reaction: We have to write the systematic name of product P.

Q: O 16.1 O 1.61 O 3.22 O 32.2 O 26.4

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Q: Researchers wished to mimic the conditions of the medial Golgi (pH = 6.3). Which of the buffers…

A: To make a buffer solution of given pH , the buffer is chosen such that the pH lies in buffer range .…

Q: Br ОН

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Q: Provide the correct common name for the compound shown here. ..||||

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Q: What event does a cathodic 'forward' peak correspond to? dissolution diffusion oxidation…

A: What event does a Cathodic 'forward'  peak corresponds to??

Q: What is the pH of an aqueous solution with a hydrogen ion concentration of [H+]=2.1×10−7 M?

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Q: Nitrogen and hydrogen react to form ammonia according to the reaction shown. 3 H2 (g) + N2 = 2 NH3…

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Q: This equation models how pure silver (Ag) is extracted from ores of AgK(CN), (potassium…

A: Given: mass of silver coin = 23.6 g To find: How many atoms of pure zinc (Zn) are needed in the…

Q: Why is nitrogen mixed in reactions involving combustible gases?

A: Nitrogen is mixed in reactions involving combustible gases beacause:

Q: View Policies Current Attempt in Progress Suppose we titrate 20.0 mL of 0.100M HCHO2 (K, = 1.8 ×…

A: Concept:  pH of a solution:  pH = -log(H+)  For a weak acid  [H+] = (C.Ka)1/2  Buffer solution:…

Q: The graph shows the changes in the phase of ice when it is heated. Which of the following…

A: Let us discuss the graph and then answer the question.

Q: Researchers are attempting to create a new battery based on the following chemistry and would like…

A: Given: 4 Fe2+(aq)   +   O2(g)  +  4 H+(aq)  ⟶   4 Fe3+(aq)   +   2H2O(l)   Eocell=0.46 volts [Fe2+]…

Q: What is the pH of a buffer solution that contains 20.0mL of 0.10M H2CO3 and 50.0mL of 0.10M NaHCO3?

A: We would use Henderson Hasselbalch equation to calculate the pH of buffer solution.

Q: What is the mass defect for americium-241 if the mass of the nucleus is 241.05682 u? Am = u Hint…

A: Mass defect is the difference between the masses of constitute neutrons and protons of atom to the…

Q: H2S + H20 H3O+HS- Which specie is bronsted acid?

A: • The given reaction is,            H2S + H2O → H3O+ + HS-    • We need to determine the bronsted…

Q: describe the mass spectrum MASS SPECTRUM to5 100 80 60 40 20 0.0+ 0.0 80 120 160 200 240 40 m/z DA…

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Q: What is the oxidation state of tungsten in WO3?

A: In this question we have to tell the oxidation number of tungsten in WO3.

Q: please explain how to synthesize the following molecule using only benzene or 2-carbon molecules.…

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Q: 2. What would be the limiting reactant of sodium reacted with 10 mol of chlorine to form 10 mol of…

A: Sodium reacts with chlorine to form sodium chloride. The equation for the balanced chemical reaction…

Q: Which ion has the stronger ion-dipole forc

A: Which ion has the stronger ion-dipole force?

Q: Which of the following atoms or ions is isoelectronic with Al3+? Select one: a. Al b. Na+ c. Ar…

A: The species which has same no of electrons are known as isoelectronic.

Q: A researcher prepared three flasks with 5.00L that is fixed with pressure gauges and small valves,…

A: Given: Molar mass of A = 16.04 g/mol. Molar mass of B = 20.18 g/mol. Volume = 5.00 L Mass of gases =…

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.