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121 (OL) Lab 3 Den... V Layout Search References Mailings Review View Help 1 2 3 5 6 I i Lynette Maina Commer 7 LE T Chem 121(OL) Lab 3: Density of Common Materials Part C Thickness of Aluminum Foil (For help understanding the calculations read the introduction and procedure) An experiment performed for Part C to measure the length, width and mass of a piece of aluminum foil gave the following data. You will use this data to solve for the thickness of aluminum foil using the equation from Part C in the introduction. Length of foil Width of foil Mass of foil 13.10 cm 9.50 cm 9.745 g Use the data in the table to determine the thickness of your aluminum foil (in cm) using the 2.6989 g/mL for the density of aluminum then convert this value to meters (m) and micrometers (um). Show your work here (use back if necessary). ons: On Accessibility: Investigate F3 F4 W cm K F5 ►11 F6 K H m um DELL F7 F8 Gu F9 Focus BB 5= 57°F Mostly sunny 4/1 F10 F11 F12 PrtScr "T

A sample of calcium chloride, CaCl2, has a mass of 27.8 g. What mass of chlorine is present in the sample?  A. 6.4 grams B. 15.85 grams C. 17.79 grams D. 10.98 grams

22. The density of magnesium is 1.74 g/cm. What is the mass of a magnesium block that measures 2.5 cm X 3.5 cm X 1.5 cm? a) 48 g b) 23 g c) 12 g d) 7.5 g

The atomic weight of silicon is 28.0855. Round this to 4 significant figures. O a. 28.09 b. 28.1 Oc. 28.0 O d. 28.08

The following shows the mass ratio of Ca and Cl2 and the mass of CaCl2 formed in various experiments. Experimenty Mass Mass The mass of No. Са C12 CaCl2 formed (gr) (gr) (gr) 1 11 2 8 14 22 3 4 11 4 12 25 33 Based on the data above, the comparison of Ca and Cl in CaCI2 is. A. 4 :7 B. 5:7 C. 6 :7 D. 5:9 IS. 6: 11

An irregular sample of zinc has a mass of 23.21 g. This sample is carefully placed in a graduated cylinder of water with an initial volume of 18.75 mL. What is the final volume of the water and zinc? The density of zinc is 7.140 g-cm-3. O A. 19.06 mL O B. 165.7 mL OC. 3.25 mL O D. 22.00 mL

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Compare the amount of copper predicted in part A with the amount measured in part B. What percentage of the predicted amount was obtained? Why aren’t these values the same?

- 23 An iron atom has a mass of 9.27 × 10 g and a cooking pot has a mass of 0.500 kg. Use this information to answer the questions below. Be sure your answers have the correct number of significant digits. What is the mass of 1 mole of iron atoms? Round your answer to 3 significant digits. ? How many moles of iron atoms have a mass equal to the mass of a cooking pot? Round your answer to 3 significant digits.

if the density of an element 1.5 g/ml with volume 1.8 L, its mass will be ... g. 2700 O 2.7 1200 1.2 Non of the above

Answer number 6 to 10 pls. I don't want to waste my money here.

24R) The density of silver is 10.5 g/cm3. A piece of silver with a mass of 61.3 g would occupy a volume of cm3. A) 0.171 B) 644 C) 10.5 D) 0.00155 E) 5.84

Fill in the blank. Gravimetric analysis relies heavily on the principle of______ a. Conservation of energy b. Conservation of mass c. Constant composition d. Definite proportions

Osmium, one of the heaviest elements with a density of 22.5g/cm3. What is the mass of 15.0 cm3 of the metal? A) 0.667g B) 337.5 g C) 22.5g D) 156.4g E) 444 g

i think this is physics and chemistry so i hope you can help me to answer this, only TRUE OR FALSE

Given that the density of gold is 19.3 g/cm3 , calculate the volume (in cm3 ) of a gold nugget with a mass of 5.98 g.a) 3.23 cm3 d) 0.310 cm3b) 5.98 cm3 e) 13.3 cm3c) 115 cm3

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The density of aluminum is 2.70 g/mL at 20 degrees C. What volume would a piece of aluminum with a mass 0f 10.8 g occupy? A) 0.23 mL B) 29.2 mL C) 4.0 mL D) 0.1 mL