a. After the label fell off a bottle containing a clear liquid believed to be benzene, a chemist measured the density of the liquid to verify its identity. A 25.0-mL portion of the liquid had a mass of 21.95 g. A chemistry handbook lists the density of benzene at15 -C as 0.8787 g/ml. Is the calculated density in agreement with the tabulated value? b An experiment requires 15 0 g of cyclohexane. whose density at 25 °C is 0.7781 g/ml. What volume of cyclohexane should be used? c. A spherical ball of lead has a diameter of 5.0 cm. What is the mass of the sphere if lead has a density of 11.34 g/cm 3 ? (The volume of a sphere is (4 /3) r 3 , where r is the radius.)
a. After the label fell off a bottle containing a clear liquid believed to be benzene, a chemist measured the density of the liquid to verify its identity. A 25.0-mL portion of the liquid had a mass of 21.95 g. A chemistry handbook lists the density of benzene at15 -C as 0.8787 g/ml. Is the calculated density in agreement with the tabulated value? b An experiment requires 15 0 g of cyclohexane. whose density at 25 °C is 0.7781 g/ml. What volume of cyclohexane should be used? c. A spherical ball of lead has a diameter of 5.0 cm. What is the mass of the sphere if lead has a density of 11.34 g/cm 3 ? (The volume of a sphere is (4 /3) r 3 , where r is the radius.)
a. After the label fell off a bottle containing a clear liquid believed to be benzene, a chemist measured the density of the liquid to verify its identity. A 25.0-mL portion of the liquid had a mass of 21.95 g. A chemistry handbook lists the density of benzene at15 -C as 0.8787 g/ml. Is the calculated density in agreement with the tabulated value? b An experiment requires 15 0 g of cyclohexane. whose density at 25 °C is 0.7781 g/ml. What volume of cyclohexane should be used? c. A spherical ball of lead has a diameter of 5.0 cm. What is the mass of the sphere if lead has a density of 11.34 g/cm3? (The volume of a sphere is (4 /3) r3, where r is the radius.)
1.3 grams of pottasium iodide is placed in 100 mL of o.11 mol/L lead nitrate solution. At room temperature, lead iodide has a Ksp of 4.4x10^-9. How many moles of precipitate will form?
Q3: Circle the molecules that are optically active:
ДДДД
6. How many peaks would be observed for each of the circled protons in the compounds below? 8 pts
CH3 CH3
ΤΙ
A. H3C-C-C-CH3
I
(₁₁ +1)= 7 H
CI
B. H3C-C-CI
H
(3+1)=4
H
LIH)=2
C.
(CH3CH2-C-OH
H
D.
CH3
Chapter 1 Solutions
Chemistry: The Central Science Plus Mastering Chemistry with Pearson eText -- Access Card Package (14th Edition)
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Author:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell
Author:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell