Chemistry Homework Help

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Dimensional Analysis

Q. An iceberg has a volume of 7670 cubic feet. What is the mass of the ice (in kg) composing the iceberg?

Solved • Jan 22, 2018

Dimensional Analysis

Q. what is the mass of the electrons, in g,in 4.5*10^24 atoms of carbon? what is the charge of the electrons?

Solved • Jun 6, 2019

Dimensional Analysis

Q. Raw potatoes are composed of about 18%–20% starch and approximately 75% water. Before frying, raw potatoes are peeled and then washed. Assume that 8% by weight of the raw potatoes is lost in the peeling. Potatoes are then dried to 7% total water content. What is the mass of dried potatoes produced from each 100 kg of raw potatoes?

Solved • Jun 6, 2019

Dimensional Analysis

Q. fishing boat accidentally spills 3.0 barrels of diesel oil into the ocean. Each barrel contains 42 gallons. If the oil film on the ocean is 2.5 × 102 nm thick, how many square meters will the oil slick cover

Solved • Jun 4, 2019

Dimensional Analysis

Q. In a sunny location, sunlight has a power density of about 1 kW/m2. Photovoltaic solar cells can convert this power into electricity with 15% efficiency.If a typical home uses 390 kW⋅h of electricity per month, how many square meters of solar cells would be required to meet its energy requirements? Assume that electricity can be generated from the sunlight for 8 h/day.

Solved • Jun 3, 2019

Dimensional Analysis

Q. how many single bonds are present in 6.93*10^24 molecules of perchloric acid?

Solved • May 27, 2019

Dimensional Analysis

Q. A car has a mileage rating of 30 miles per gallon of gasoline. Part A How many miles can the car travel on 63.5 liters of gasoline?

Solved • May 21, 2019