Question 4- Calculate the following and express your answer in standard notation with the correct units and number of significant figures. (please show all of your work so I can understand going forward) (8.49 × 102 ??) + (3.8 × 10−1 ??) + 9,320 ??

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A:

Q: Calculate the concentration in /μmol/L of the chemist's magnesium fluoride solution.

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A: Given: mass of FeBr2 = 470 g volume of flask, V=450 mL                             =0.450 L We know…

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A: Given, mass of CuSO4 = 30.0 g Volume = 300 mL = 0.3 L

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A:

Q: The units of ku are mL (g−1·h−1) but the unit of ke is hour−1. Why?

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A:

Q: 2 NO(g) + Br₂(g) → 2 NOBr(g); AH = -18.2 kJ COLUMN A Kp at 25°C COLUMN B Kp at 50°C

A: Using integrated van't Hoff equation, Kp can be determined at different temperatures.

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A:

Q: A chemist prepares a solution of copper(II) sulfate  CuSO4  by measuring out  22.μmol  of…

A: Moles of copper (2) sulphate = 22micromole Volume = 300ml

Q: Chemistry

A: According to significant figure rule the number have least significant digit known as limiting term.…

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A: Change micro mol to mili mol the volume in L. then divide it.

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A:

Q: Suppose 36.4 g of copper(II) acetate is dissolved in 250. mL of a 0.50 M aqueous solution of sodium…

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A:

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A:

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A: Answer :----

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A:

Q: A chemist prepares a solution of copper (II) fluoride (CuF2) by measuring out 0.044 g of copper (II)…

A: The concentration of a solution can be calculated as follows:

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A:

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Q: A solution is made by mixing 5.40 g of toluene, CHg(1), with 954. mL of chloroform, CHCI3(1).…

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Q: Question 1: Determine whether the answer to each calculation has the correct number of significant…

A: (1)

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Q: A chemist prepares a solution of iron(III) bromide (FeBr3) by weighing out 17.78 g of iron(III)…

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Q: he flask to the mark with water. Calculate the concentration in mol/L of the chemist's potassium…

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A:

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.