8 cm 3 100x10 6 g Reference Chang 157 13 A piece of silver Ag metal weighing

# 8 cm 3 100x10 6 g reference chang 157 13 a piece of

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-8cm3= 1.00x10-6g(Reference: Chang 1.57)13. A piece of silver (Ag) metal weighing 194.3 g is placed in a graduated cylinder containing 242.0 mL of water. The volume of water now reads 260.5 mL. From these data calculate the density of silver in units of g/mL. (5 points)p(silver)=m(silver)/v(silver)m(silver)=194.3gv(silver)= v(water final) - v(water initial) = 260.5mL – 242.0mL = 18.5mLp(silver)=194.3g/18.5mL = 10.5g/mL(Reference: Chang 1.61)14. Cholesterol in blood is measured in milligrams of cholesterol per deciliter of blood. If the average adult has 6.0 liters of blood, how many grams of cholesterol would be in the blood of an average adult with a cholesterol reading of 185 mg/dL? Density of blood = 1.020 g/mL. (5 points)185mg/dL x 1g/1000mg = 0.185g/dL6.0L x 1dL/0.1L = 60dL0.185g/dL ÷ 60dL = .003083g = 3.08x10-3g4Copyright © 2016 by Thomas Edison State University. All rights reserved.
Question 1: -8A is a chemical propertyB: is a chemical C is a physical propertyE is a chemical property (substance change)Question 2: -2a. water from a well – homogeneous mixture (well water is not pure)f. rusty iron nail would consist of Fe and Fe2O3Question 3: -1 scientific notation, correct number of significant figuresb. 79,500 ÷ (2.5 × 10^2) = (7.95×10^4)/(2.5×10^2) = 3.2 × 10^2Question 5: -2 proper number of significant figuresc. 4.51 cm × 3.6666 cm = 16.5 cm^2d. (3 × 10^4g + 6.827g)/(0.043 cm^3 – 0.021 cm^3) = 1 × 10^6 g/cm^3Question 5: -2 proper number of significant figuresc. 4.51 cm × 3.6666 cm = 16.5 cm^2d. (3 × 10^4g + 6.827g)/(0.043 cm^3 – 0.021 cm^3) = 1 × 10^6 g/cm^3Question 12: -1(0.040mm)^3(1cm^3/1000mm^3)(21.4g/cm^3) = 1.4 × 10^-6gQuestion 14: -5(185mg/dL)(10dL/1L)(1g/1000mg)(6.0L) = 11.1g5Copyright © 2016 by Thomas Edison State University. All rights reserved.

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• Summer '14
• Chemistry, Homework, Chemical substance, Chemical compound, Physical property, Thomas Edison State College, Edison State University, Che-111

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