190g = 0.42lb How does your experimental factor compare to the standard conversion factor of 454 g/lb

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A: Write the answer regarding the reaction rate order of the following---

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Q: For the reaction 2H2+O2➡️2H2O , if 30.0 g of H2 is reacted with 20.0 g of O2, what mass of the exces...

A: The mass of excess reagent left over is given below 

Q: Refer to the figure below. Identify the part of vernier caliper. ... O 10 20 30 40 s0 60 70 B0 99 10...

A: Thumb screw : is located at the bottom of the vernier scale. The main function of the thumbscrew is ...

Q: Rxn 3: H,0() H*(aq) + OH(aq) Rxn 6: M(OH),(s) M²°(aq) + 2 0H (aq) M= Zn Start with 0.1 M Zn(NO3)2 in...

A: Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for yo...

Q: Convert kPa/sec to uL/min for the following values. -0.0019 kPa/sec -0.0029 kPa/sec -0.0028 kPa/s...

A: Convert kPa/sec to uL/min for the following values.

Q: Q2. Provide the product(s) for the following reactions. Me Na (a) NH3 co,H

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Q: Dinitrogen pentoxide forms from its elements by the following balanced chemical equation: 4 NO2 (g)...

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Q: How many atoms of O are in 12.8 g Li2SO4?

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Q: Give a clear handwritten answer about DNA look the DNA sketch and describe how to stands are attache...

A: Given : We have to explain how DNA strands are attached with each other.

Q: A 0.800 M HCl was diluted to a final volume of 500. mL . If the new concentration is 0.20M . What wa...

A: Given: Initial concentration of HCl = 0.800 M Final volume of solution = 500 mL. And the final conce...

Q: - Compare the properties of the following using , or = sign 1. boiling point 3.0 mC,H,,O, 2.0 m NaC...

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Q: A 1.480 g sample of oxalic acid, H2C204, is placed in a 100.0-mL volumetric flask, which is then fil...

A: Given : Mass of oxalic acid = 1.480g

Q: I. Define the following terms: g. Cream h. Lotion i. Cleansing and cold cream

A: A colloid is a mixture is two or more substances mixed together but not chemically combined  They ar...

Q: COBr2 is formed when CO reacts with Br2. Given the reaction CO(g) + Br2(g)  COBr2(g) , If [CO]0 = .5...

A: Given data : [CO]o = 0.50 M [Br2]0 = 0.40 M Kc = 23

Q: What is the freezing point of a solution in which 20.0 grams of sucrose (C12H22O12) is dissolved in ...

A: When a non volatile solute is dissolved in a solvent, the freezing point of the solution decreases k...

Q: A primary alcohol is oxidized to form a ketone. The ketone is then oxidized gain. The final product ...

A:   Oxidation of alcohols :  1. Primary alcohol upon oxidising with mild oxidising agent could give al...

Q: Consider the most stable chair form for cis-1,2-dimethylcyclohexane. Now, consider the most stable c...

A: Consider the most stable chair form for cis-1,2-dimethylcyclohexane. Now, consider the most stable c...

Q: Current Attempt in Progress The reaction 2A + 2B M+N has the rate law: Rate k[A]?. At 25°C, k = 0.03...

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Q: 13. Provide a mechanism for the chain radical mechanism, using curved arrow formalism, of the reacti...

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Q: 60.0 mL of a 0.800M NaCl solution is mixed with 80.0 mL of a 0.500M KBr solution. What is the new co...

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Q: 4/ ________ is isoelectronic with scandium. Sr2+ Mn5+ Mn4+ Mn4- Mn

A: ANS. MN+4

Q: What is the freezing point of a solution in which 20.0 grams of sucrose (C12H22O12) is dissolved in ...

A: Given, mass of sucrose = 20.0 grams Molar mass of sucrose = 342.3 g/mol Mass of solvent = 400 grams ...

Q: 3. For each of the following molecules or ions: i. Write an MO energy level (orbital correlation) di...

A: We have find out molecular orbital energy level diagram 

Q: く く く く Indicate whether each of the following relationships between gas variables is direct or inve...

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Q: If I combined 15.0 grams of calcium hydroxide with 75.0 mL of 0.500M HCl, how many grams of calcium ...

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Q: moles

A: Since you have asked multiple questions, we will solve the first question for you. If you want any s...

Q: How many cups are there in 1.00 gallon of ice creams?

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Q: bspherte, 2. Consider the double replacement reaction between magnesium sulfate (M9SO4) and potassiu...

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Q: What is the equilibrium constant expression (Ka) for the acid dissociation of hypochlorous acid? HCl...

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Q: Determine the oxidation number for each atom in H,C,04 C: H: 0:

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Q: why do electron withdrawing groups destabilise negative charges?

A: Electron withdrawing group stabilize the negative charges   

Q: 2. A bottle of phosphoric acid is labeled "85.0% H3PO4 by mass; density = 1.689 g/ml." Express the c...

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Q: A tiny sample of an aqueous solution of two substances R and P is sketched below, as if it was under...

A: The reaction given is, => R (aq) ⇔ P (aq)                 K = 3 The initial condition is depicted...

Q: 1.46 g Potassium hydrogen phthalate requires 34.3 mL of 0.145M NaOH for neutralization, what percent...

A: Given : Mass of Potassium hydrogen phthalate = 1.46g  

Q: PLEASE ANSWE.R BE.LOW

A: We have to assign the oxidation state of each element. 

Q: PROBLEM: The molecular scenes below represent samples of four HA/A- buffers. (HA is RED and GREEN, A...

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Q: by your instructor. Calculations 4. Calculate the mass of the hydrate (2 - 1) 5 Calculate the mass o...

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Q: a the initiation step of the free radical chlorination of methane, which of the following occurs? O ...

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Q: A 0.800 M HCl was diluted to a final volume of 500. mL . If the new concentration is 0.20M . What wa...

A: Given that, a 0.800 M HCl was diluted to a final volume of 500 mL.  The concentration after dilution...

Q: 22. Synthesis! Using alkanes and/or cycloalkanes of six carbons or fewer (as your source of carbons)...

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Q: Calculate Kp for cadmium sulfide from the following data: CdS(s) + 2e¯ → Cd(s) + S²- (ag) e° = -1.18...

A: The reactions given are,  

Q: Consider the diprotic acid H2A with K1  =1.00 x 10^-4 and K2 = 1.00 x 10^-8. Find the pH and concent...

A: K1 = 1 × 10-4  K2 = 1 × 10-8

Q: 1.15(a) A gas at 250 K and 15 atm has a molar volume 12 per cent smaller than that calculated from t...

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Q: A sample of 7.92 g of Mg(OH)2 is added to 24.2 mL of 0.225 MΗΝΟ, . Part D How many moles of HNO3 are...

A: Given: Mass of Mg(OH)2 = 7.92 g. Concentration of HNO3 = 0.225 M And volume of HNO3 taken = 24.2 mL ...

Q: Balance the chemical equation:  C4H8 +  O2 →  CO2 +  H2O There is a blank for all coefficients - s...

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Q: Calculate the percent composition of the product you made. Hint: You must know the identity and. mas...

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Q: What is the hydronium-ion concentration of a 5.58 x 104 M solution of p-bromobenzoic acid, BrCg H4 C...

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Q: 2. When we use the stopped-flow method to determine the rate constant, which result is more accurate...

A: Stopped flow method is a rapid kinetics technique to determine rate constant.

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.