DashboardMy HomeOWLV2 | Online teaching and learning resource from Cengag[References)A student gently drops an object weighing 15.7 g into an open vessel that is full of ethanol, so that a volume of ethanol spills out equal to the volume of the object. The experimenternow finds that the vessel and its contents weigh 10.6 g more than the vessel full of ethanol only. The density of ethanol is 0.789 g/cm°. What is the density of the object?Density =g/cm³Submit AnswerTry Another Version10 item attempts remaining

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Online teaching and learning resource from Cenga [References] A student gently drops an object weighing 15.7 g into an open vessel that is full of ethanol, so that a volume of ethanol spills out equal to the volume of the object. The experimente now finds that the vessel and its contents weigh 10.6 g more than the vessel full of ethanol only. The density of ethanol is 0.789 g/cm, What is the density of the object? Density = g/cm Submit Answer Try Another Version 10 item attempts remaining

Online teaching and learning resource from Cenga [References] A student gently drops an object weighing 15.7 g into an open vessel that is full of ethanol, so that a volume of ethanol spills out equal to the volume of the object. The experimente now finds that the vessel and its contents weigh 10.6 g more than the vessel full of ethanol only. The density of ethanol is 0.789 g/cm, What is the density of the object? Density = g/cm Submit Answer Try Another Version 10 item attempts remaining

Chemistry: Principles and Reactions

8th Edition

ISBN:9781305079373

Author:William L. Masterton, Cecile N. Hurley

Publisher:William L. Masterton, Cecile N. Hurley

Chapter1: Matter And Measurements

Section: Chapter Questions

Problem 38QAP: A gasoline station in Manila, Philippines, charges 38.46 pesos per liter of unleaded gasoline at a...

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A gasoline station in Manila, Philippines, charges 38.46 pesos per liter of unleaded gasoline at a time when one US. dollar (USD) buys 47.15 pesos (PHP). The car you are driving has a gas tank with a capacity of 14 U.S. gallons and gets 24 miles per gallon. (a) What is the cost of unleaded gasoline in Manila in USD per gallon? (b) How much would a tankful of unleaded gasoline for your car cost in USD? (c) Suppose that you have only PHP 1255 (a day's wage for an elementary school teacher) and the car's tank is almost empty. How many miles can you expect to drive if you spend all your money on gasoline?
The volume of a square pyramid is (1/3)Bh where B is the area of the square base and h is the height. One student's measurements of a pyramid are B=1.33m2 h=2.79 m. Another student's measurements of the same pyramid are B=1.31m2, h=2.81 m. What is the difference in the volumes of the pyramid calculated by the two students?
Although the preferred SI unit of area is the square meter, land is often measured in the metric system in hectares (ha). One hectare is equal to 10,000 m2. In the English system, land is often measured in acres (1 acre = 160 rod2). Use the exact conversions and those given in Exercise 47 to calculate the following. a. 1 ha = __________ km2 b. The area of a 5.5-acre plot of land in hectares, square meters, and square kilometers c. A lot with dimensions 120 ft by 75 ft is to be sold for 6500. What is the price per acre? What is the price per hectare?
1.78 Some farmers use ammonia, NH3, as a fertilizer. This ammonia is stored in liquid form. Use the participate perspective to show the transition from liquid ammonia to gaseous ammonia.
The SI unit for energy is the joule (J), which is equal to the kineticenergy possessed by a 2.00-kg mass moving at 1.00 m/s. Convertthis velocity to mph (1 mi = 1.609 km).(a) 4.47 × 10–7 mph (b) 5.79 × 106 mph (c) 5.79 mph (d) 0.0373 mph (e) 2.24 mph
You are asked to calibrate a 25 mL volumetric pipet. You determine that the temperature of your distilled water is exactly 24.5 degrees Celsius. You carefully determined the mass of a clean dry beaker and found that it was 57.5513 g. You pulled water up to the mark and transferred this to the beaker and found that the new mass was 82.9344 g. What is the actual volume of the pipet? The density of water at 24.5 degrees Celsius is 0.997983 g/mL.
High fructose corn syrup is a sweetener found in everyday food items especially carbonated beverages. It is derived from the "fruit" of corn using a bioprocess that degrades corn starch into its constituent sugars. Given the quantity of corn syrup (d = 1.4 kg L^-1) needed for many industries. It should be no surprise that this product is often transported from place to place in tank cars (via railway) where the typical transport mass is 2.290 x 10^5lbs. In the space provided below, calculated the diameter in (meters) of such a tank car's 11.12m long-cylindrical transport container. Recall that 1 gal =3.785 L, kg= 2.205lbs, and 1cm^3 =exactly 1mL
Convert 23lbf ∙ ft/min^2 to its equivalent in kg ∙ cm/s^2
Six concrete posts are used to support a waterfront pier. Each post has dimensions 14 in x 14 in x 15 ft. The average density of the concrete is 2.4 g/cm3. ( 1g = 1 x 10-6 metric ton) a. Calculate the volume of concrete (in m3) needed to make one post. b. Calculate the total mass in metric tons (t) of all six concrete posts. 13. Earth’s surface area is 5.1 x 108 km2, its crust has an average thickness of 35 km and an average density of 2.8 g/cm3. The two rarest (non-radioactive) elements in the crust are ruthenium and rhodium, each with an abundance of 1.0 x 10-4g/metric ton crust. What is the total mass of these two elements in the earth’s crust? (1g = 1 x 10-6 metric ton) 14. A 200mg piece of gold is hammered into a sheet measuring 2.4ft x 1.0ft, what is the thickness of the sheet in meters? Density of gold is 19.32g/cm3 (1in = 2.54cm, 12in = 1ft)
To aid in the prevention of tooth decay, it is recommended that drinking water contain 0.900 ppm fluoride, F−. How many grams of F− must be added to a cylindrical water reservoir having a diameter of 4.12×10^2 m and a depth of 76.72 m?
You are assigned the task of separating a desired granular materialwith a density of 3.62 g/cm3 from an undesired granularmaterial that has a density of 2.04 g/cm3. You want to dothis by shaking the mixture in a liquid in which the heaviermaterial will fall to the bottom and the lighter material willfloat. A solid will float on any liquid that is more dense. Usingan Internet-based source or a handbook of chemistry, findthe densities of the following substances: carbon tetrachloride,hexane, benzene, and diiodomethane. Which of theseliquids will serve your purpose, assuming no chemical interactiontakes place between the liquid and the solids?
When 10.0g of marble chips (calcium carbonate) is treated with 50.0mL of hydrochloric acid density 1.096g ,the marble dissolves, giving a solution and releasing carbon dioxide gas .The solution weighs 60.4g .How many litres of carbon dioxide gas are released?The density of this gas is 1.798g/L