In Mexico the cost of avocados are 48 pesos per kg. What is the cost in cents of an avocado that weighs 0.45 lb if the exchange rate is 13.0 pesos to the dollar? 1) 76 cents 2) 1.00 dollars 3) 13.0 cents 4) 0.45 cents 5) 2.20 cents

In the opening scene of the movie Raiders of the Lost Ark, Indiana Jones tries to remove a gold idol from a booby-trapped pedestal. He replaces a gold (D = 19.32 g/cm²³) idol of dimensions 5.0 inches by 5.0 inches by 5.0 inches with a bag of sand of approximately double the volume with sand (D = 3.65 g/cm³). Is the bag of sand really equal to the gold idol or will Dr. Jones set off the trap? Explain your answer and include a mathematical explanation. ML Cm3

The shattered glass case at the scene of a jewelry store robbery was determined to be made of potash borosilicate glass, which has a density of 2.162g/mL. A 4.034g glass fragment was recovered from a suspect's clothing. When the fragment was placed into a graduated cylinder filled with water, 1.63mL of the water was displaced. Calculate the density of the glass fragment.

2. You purchase a rectangular piece of metal that has dimensions 5.0 X 15.0 X 30.0 mm and mass 43.43 g. The seller tells you that the metal is gold. To check this, you compute the average density of the piece. What value do you get? Were you cheated?

Chlorine gas (C1₂) reacts with solid calcium (Ca) to produce solid calcium chloride (CaCl₂). Write a balanced chemical equation for this reaction. 0 0-0 X 2 5 S

Chalcopyrite is among the most common varieties of copper ore. Assuming chalcopyrite is 34.4% copper by mass (34.4 grams copper per 100. grams of ore), how many kilograms of chalcopyrite would be needed to smelt 30.0 kilograms of pure copper?

Suppose you are measuring the mass of a solid sample on a balance using a weigh boat. You record the data in a table.   Mass of weigh boat 3.451 g Mass of weigh boat and sample      7.268 g What is the mass of the solid sample (in g)?

A student weighed their penny (mass = 2.499 g) and followed the same experimental procedure you did in the lab. They found that the penny contained 0.0980 g of copper, or, 3.92%. Estimate the thickness of the copper coating with the following formula. From the US Mint website: the diameter of a penny is 19.05 mm and the thickness is 1.52 mm. The density of copper is 8.96 g/cm3. TIP: your final answer will have the units of cm (think about what to do first.). mass of Cu volume density of Cu Thickness of Cu Coating = area (diameter 2 T T (diameter) (thickness) O 7.39 x 104 cm O 1.65 x 103 cm O 4.22 x 102 cm O 2.80 x 103 cm O 1.89 x 105 cm O impossible to determine

A chardonnay wine is 13.5 percent by mass alcohol. If we consume 24 fluid oz of wine, and the density of the wine is 0.982 mg/mL, how much alcohol was consumed? 09.6 x 103 g alcohol O 301 g alcohol O 94 g alcohol O 106 g alcohol O 13.3 g alcohol

A sunscreen preparation contains 2.50% by mass benzyl salicylate. If a tube contains 4.0 ounces of sunscreen, determine how many kilograms of benzyl salicylate are needed to manufacture 325 tubes of sunscreen. Conversion: 2.205 lb= 1 kg.  16.0 oz = 1 lb