Carry out the following operations and express the answer with the appropriate number of significant figures and units: a) (5.231mm)(6.1mm) b) 72.3g/1.5mL c) 12.21g +0.132g and d) 31.03g+12mg

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A: Given : mass of KCl = 9.35 g               Mass of water = 162.98 g

Q: Carry out the following operations and express the answerswith the appropriate number of significant…

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Q: Carry out the following operations and express the answers with the appropriate number of…

A: Given, Express the answers with the appropriate number of significant figures : (a). 14.3505 + 2.65…

Q: graduated cylinder weighs 35.825 g. When 10 mL of water is measured in it, the weight of the…

A: Given: Weight of the graduated cylinder = 35.825 g. The weight of the graduate and water= 45.835 g…

Q: I'm not sure if I'm doing them correctly

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A:

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A:

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A: Given : 39.20 dm +  10.000 m  =?

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A:

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A: Specific gravity of liquid is given by : mass of liquid / mass of water .

Q: The numerical value for (5.6 x 104) ÷ (7.89 x 102) is equal to, with the proper number of…

A:

Q: Your laboratory instructor has given you two metal cylinders. The mass of each sample was determined…

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Q: Provide the result of (6.5721 × 2.7850) - 9.438 using significant figures properly.

A: Interpretation: The result of 6.5721 × 2.7850 - 9.438 using significant figures is to be provided.

Q: You plot A vs Conc (mg/mL) for a set of 5 standards in mg/mL and get the equation for the line as…

A: Given: The best fit line for the absorbance v/s concentration plot is, => y = 0.310 x + 0.315…

Q: Write 3.280x104 J as a normal, decimal number without any scientifc notation. Pay attetion to…

A: Correct option is C. 0.0003280 J.

Q: A urine sample has a mass of 147 g147 g and a density of 1.010 g/mL1.010 g/mL . What is the volume…

A: Since,Volume =massdensitymass of urine =147gdensity of urine =1.010 gmL

Q: Complete the following problems using correct significant figures. pKb = 10.35 kb = Please…

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A: To solve this problem we have to use significant figures rules .

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Q: The hydrogen atom has a volume of approximately 6.2 × 10-³1 m³. What is this volume in each unit?

A: 1 nanometer (nm) = 1 × 10-9 meter (m) So,  1 nm3 = (1×10-9 m)3 Or, 1 nm3 = 1×10-27 m3

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A:

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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.