Homework Answers
1 ounce = 28.35 g
One tube contains 5oz = 5*28.35 = 141.75 g of sunscreen.
Mass of benzyl salicylate in one tube = 2.5/100 * 141.75 = 3.54 g
To manufacture 410 tubes, 3.54*410 = 1.45 kg
Answer : 1.45 kg
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Review Constants Part A A sunscreen preparation contains 250 % by mass benzyl salicylate. If a...
A sunscreen preparation contains 2.65% by mass benzyl salicylate. If a tube contains 2.0oz of sunscreen...
A sunscreen preparation contains 2.65% by mass benzyl salicylate. If a tube contains 2.0oz of sunscreen how many kilograms of benzyl salicylate are needed to manufacture 375 tubes of sunscreen
Review Constants Periodic Table The lodine molecule can be photodissociated (broken apart with light) into iodine...
Review Constants Periodic Table The lodine molecule can be photodissociated (broken apart with light) into iodine atoms in the gas phase with light of wavelengths shorter than about 792 nm. A 110.0 mL glass tube contains 41.5 mtorr of gaseous iodine at 20.0 °C. Part A What minimum amount of light energy must be absorbed by the iodine in the tube to dissociate 14.0% of the molecules? Express your answer with the appropriate units. " HA O ? Emin •...
The answer is not 1.72 Review | Constants ! The density of titanium is 4.50 g/cm...
The answer is not 1.72
Review | Constants ! The density of titanium is 4.50 g/cm Part A What is the edge length (in cm) of a titanium cube that contains 2.99 x 10titanium atoms? Express your answer to three significant figures. AEO OE? cm Submit Previous Answers Request Answer X Incorrect; Try Again; 5 attempts remaining
Problem 3.31 Review Constants Perie Part A One cup of clam chowder contains 19 g of...
Problem 3.31 Review Constants Perie Part A One cup of clam chowder contains 19 g of carbohydrate, 16 goffat, and 9 g of protein TABLE 3.7 Typical Energy Values for the Three Food Types Food Type kcal/g kJ/g Carbohydrate 4 17 9 38 Protein 4 17 How much energy, in kilocalories, is in the clam chowder? (Round off the kilocalories to the tens place.) Express your answer to two significant figures and include the appropriate units. HA th O ?...
Problem 7.10 Review Constants Part A The angular velocity (in rpm) of the blade of a...
Problem 7.10 Review Constants Part A The angular velocity (in rpm) of the blade of a blender is given in (Figure 1). If θ 0 rad at t 0 s, what is the blade's angular position at t Express your answer using two significant figures. 20 s? Figure 250 200 150 100 50 1 of 1 ΑΣφ rad Submit Previous Answers Request Answer X Incorrect: Try Again; 5 attempts remaining 0 t (s) 10 15 20
Review Constants The current shown in (Figure 1) is applied to a 350 nF capacitor. The...
Review Constants The current shown in (Figure 1) is applied to a 350 nF capacitor. The initial voltage on the capacitor is zero. Part A Find the charge on the capacitor at t = 30 jus Express your answer to three significant figures and include the appropriate units. IT μΑ q= 25.103 O Submit Previous Answers Request Answer Part B Find the voltage on the capacitor at t = 50 js. Express your answer to three significant figures and include...
Review Constants Periodic Table A liquid fuel mixture contains 30.85 % hexane (C6H4), 17.35% heptane (C7H16),...
Review Constants Periodic Table A liquid fuel mixture contains 30.85 % hexane (C6H4), 17.35% heptane (C7H16), and the rest octane (C8H18) Part A What maximum mass of carbon dioxide is produced by the complete combustion of 11.0 kg of this fuel mixture? Express your answer with the appropriate units. TH MÅ 0 2 ? mco, = 30807.92 g Submit Previous Answers Request Answer * Incorrect; Try Again; 4 attempts remaining
Problem 2.19 く) 160f 16 〉 Review 1 Constants Part A The current ia in the...
Problem 2.19 く) 160f 16 〉 Review 1 Constants Part A The current ia in the circuit shown in (Figure 1) is 17A Find io Express your answer to three significant figures and include the appropriate units Figure 10f1 〉 68mA 8Ω Previous Answers Request Answsr X Incorrect Try Again; 4 attempts remaining 10Ω 14Ω Check that you have converted between SI units of electric current correctly. 18Ω Part B Find i Express your answer to three significant figures and...
Review | Constants | Periodic Table Part A The absorption spectrum of the hydrogen atom shows lin...
Review | Constants | Periodic Table Part A The absorption spectrum of the hydrogen atom shows lines at 5334, 7804, 9145, 9953, and 10478 cm1. There are no lower-frequency lines in the spectrum. Use the graphical methods to determine ninitial. Assume values for ninitial of 1, 2, and 3. Express your answer as an integer. ninitial Submit Previous Answers Request Answer Incorrect; Try Again; 5 attempts remaining
Review | Constants | Periodic Table Part A The absorption spectrum of the...
Problem 9.14 2 of 13 Review I Constants The expressions for the steady-state voltage and current...
Problem 9.14 2 of 13 Review I Constants The expressions for the steady-state voltage and current at the terminals of the circuit seen in the figure are g 350 cos(5000xt85°) V, ig=8 sin(5000rt 108°) A (Figure 1) Part A What is the impedance seen by the source? Express your answer in ohms to three significant figures using polar notation. Express argument in degrees. VA D T vec Z=43.75 27 Ω Previous Answers Request Answer Submit Incorrect; Try Again; 3 attempts...
Review Constants Periodic Table The lodine molecule can be photodissociated (broken apart with light) into iodine atoms in the gas phase with light of wavelengths shorter than about 792 nm. A 110.0 mL glass tube contains 41.5 mtorr of gaseous iodine at 20.0 °C. Part A What minimum amount of light energy must be absorbed by the iodine in the tube to dissociate 14.0% of the molecules? Express your answer with the appropriate units. " HA O ? Emin •...
The answer is not 1.72
Review | Constants ! The density of titanium is 4.50 g/cm Part A What is the edge length (in cm) of a titanium cube that contains 2.99 x 10titanium atoms? Express your answer to three significant figures. AEO OE? cm Submit Previous Answers Request Answer X Incorrect; Try Again; 5 attempts remaining
Problem 3.31 Review Constants Perie Part A One cup of clam chowder contains 19 g of carbohydrate, 16 goffat, and 9 g of protein TABLE 3.7 Typical Energy Values for the Three Food Types Food Type kcal/g kJ/g Carbohydrate 4 17 9 38 Protein 4 17 How much energy, in kilocalories, is in the clam chowder? (Round off the kilocalories to the tens place.) Express your answer to two significant figures and include the appropriate units. HA th O ?...
Problem 7.10 Review Constants Part A The angular velocity (in rpm) of the blade of a blender is given in (Figure 1). If θ 0 rad at t 0 s, what is the blade's angular position at t Express your answer using two significant figures. 20 s? Figure 250 200 150 100 50 1 of 1 ΑΣφ rad Submit Previous Answers Request Answer X Incorrect: Try Again; 5 attempts remaining 0 t (s) 10 15 20
Review Constants The current shown in (Figure 1) is applied to a 350 nF capacitor. The initial voltage on the capacitor is zero. Part A Find the charge on the capacitor at t = 30 jus Express your answer to three significant figures and include the appropriate units. IT μΑ q= 25.103 O Submit Previous Answers Request Answer Part B Find the voltage on the capacitor at t = 50 js. Express your answer to three significant figures and include...
Review Constants Periodic Table A liquid fuel mixture contains 30.85 % hexane (C6H4), 17.35% heptane (C7H16), and the rest octane (C8H18) Part A What maximum mass of carbon dioxide is produced by the complete combustion of 11.0 kg of this fuel mixture? Express your answer with the appropriate units. TH MÅ 0 2 ? mco, = 30807.92 g Submit Previous Answers Request Answer * Incorrect; Try Again; 4 attempts remaining
Problem 2.19 く) 160f 16 〉 Review 1 Constants Part A The current ia in the circuit shown in (Figure 1) is 17A Find io Express your answer to three significant figures and include the appropriate units Figure 10f1 〉 68mA 8Ω Previous Answers Request Answsr X Incorrect Try Again; 4 attempts remaining 10Ω 14Ω Check that you have converted between SI units of electric current correctly. 18Ω Part B Find i Express your answer to three significant figures and...
Review | Constants | Periodic Table Part A The absorption spectrum of the hydrogen atom shows lines at 5334, 7804, 9145, 9953, and 10478 cm1. There are no lower-frequency lines in the spectrum. Use the graphical methods to determine ninitial. Assume values for ninitial of 1, 2, and 3. Express your answer as an integer. ninitial Submit Previous Answers Request Answer Incorrect; Try Again; 5 attempts remaining
Review | Constants | Periodic Table Part A The absorption spectrum of the...
Problem 9.14 2 of 13 Review I Constants The expressions for the steady-state voltage and current at the terminals of the circuit seen in the figure are g 350 cos(5000xt85°) V, ig=8 sin(5000rt 108°) A (Figure 1) Part A What is the impedance seen by the source? Express your answer in ohms to three significant figures using polar notation. Express argument in degrees. VA D T vec Z=43.75 27 Ω Previous Answers Request Answer Submit Incorrect; Try Again; 3 attempts...
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