You agree on a $55 payment with your friend to help them move out of their apartment, but after the fact they shyly tell you they don’t have the money. However, they instead give you a small cube of gold they inherited. This block is 0.16 inches on each side, and the density of gold is 19 g/cm3. If the going rate for gold is $61 per gram, how much is this cube worth? Does it cover the payment? (1 inch = 2.5 cm)

Q: Consider the reaction and the data below: A+B⇒C Reaction 1 2 3 The value of k is closest to: [A](M)…

A: For a general reaction,the rate law can be given aswhere 'k' is the rate constant, 'x' and 'y' are…

Q: Which combinations would produce a buffer solution? Select one or more: O a. weak base and its…

A: The solution that resists the change in pH is known as a buffer solution. The buffer solution is an…

Q: 2- Draw the Lewis structure for CO² including any valid resonance structures. Which of the following…

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A:

Q: 40.0 mL of 0.325 M HNO3 is titrated by 0.650 M KOH. Calculate the pH of the acid solution before any…

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Q: How many grams of Co(CH3COO)₂ are there in 197 grams of an aqueous solution that is 9.60 % by weight…

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Q: When a 10.0 g sample of an unknown organic acid is subjected to combustion analysis 21.2 grams of…

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Q: Sodium hydrogen carbonate (NaHCO3), also known as sodium bicarbonate or "baking soda", can be used…

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Q: Using a simple particle-in-a-box model for the multiple bonding in 1,2-butadiene and the n = 2 wave…

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Q: Ascorbic acid, or vitamin C (C6H8O6, molar mass = 176 g/mol), is a naturally occurring organic…

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Q: What is the noble gas configuration for sodium (atomic number )=( 11)

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Q: Choose the correct MAJOR product for the following reaction. OA OB A Na CH3OH NH3 B OH C D

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Q: 4. What is the IUPAC name for this structure? Br 0 (A) 3-bromo-4-methylheptanone (B)…

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Q: 19. The initial rate of reaction between Substance A and Substance B was measured at a series of…

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Q: 16. Some factors have a proportional effect on reaction rates. Choose two (2) factors that have a…

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Q: Synthesis: Show how you would carry out the following synthesis. Include the reagents you would need…

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A:

Q: 4 Determine the time in seconds required to sputter 50 nm of Si using a 10 µA/cm2 beam of 45 keV…

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Q: Draw the Lewis structure of the sulfhydryl anion, SH-. Show all lone pairs and formal charges.

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Q: Draw the structure of the following phospholipid: a cephalin formed from two molecules of stearic…

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Q: er the chemical symbol of an element that matches. Otherwise check No in the second column.…

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Q: A solution contains 0.150 mol NaCl and 0.931 mol H₂O. Calculate the vapor pressure of the solution…

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A:

Q: What is the best choice of reagent(s) to perform the following transformation? Br H H₂C-C-CH Br H O…

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Q: Given the ff information calculate the acceptable range for 99.9% of the population. Mean=6.32 ;…

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Q: Fill-in the missing reagents and products for the synthesis of HH Br NaCN SN2 A B N 1 H H

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Q: (a) (b) Predict the major product for each of the following reactions: H ? N Br 1) Excess Mel 2)…

A:

Q: I have a question, What number is of value and units.

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Q: Calculate the number of hydrogen atoms in a 150.0 g sample of ammonia (NH₂). Be sure your answer has…

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Q: (-4.3x10^4 mol/kg)x?=?mol/g

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Q: What is the major product of the following reaction? Br OEt EtOH OEt E III OEt IV

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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.