Chemistry, 12.12.2019 21:31 haimar8710
Aresearcher studying the nutritional value of a new candy places a 5.70 g 5.70 g sample of the candy inside a bomb calorimeter and combusts it in excess oxygen. the observed temperature increase is 2.14 โ c. 2.14 โc. if the heat capacity of the calorimeter is 30.30 kj โ k โ 1 , 30.30 kjโ kโ1, how many nutritional calories are there per gram of the candy?
Answers: 1
Chemistry, 22.06.2019 03:30
Nanotechnology, the field of trying to build ultrasmall structures one atom at a time, has progressed in recent years. one potential application of nanotechnology is the construction of artificial cells. the simplest cells would probably mimic red blood cells, the body's oxygen transporters. for example, nanocontainers, perhaps constructed of carbon, could be pumped full of oxygen and injected into a person's bloodstream. if the person needed additional oxygen-due to a heart attack perhaps, or for the purpose of space travel-these containers could slowly release oxygen into the blood, allowing tissues that would otherwise die to remain alive. suppose that the nanocontainers were cubic and had an edge length of 24 nanometers. part a part complete what is the volume of one nanocontainer? (ignore the thickness of the nanocontainer's wall.) express your answer using two significant figures. v v = 1.4ฤโ10รขโ20 l previous answers correct significant figures feedback: your answer 1.3824รขโนโฆ10รขโ20 = 1.382ฤโ10รขโ20 l was either rounded differently or used a different number of significant figures than required for this part. if you need this result for any later calculation in this item, keep all the digits and round as the final step before submitting your answer. part b suppose that each nanocontainer could contain pure oxygen pressurized to a density of 81 g/l . how many grams of oxygen could be contained by each nanocontainer?
Answers: 3
Chemistry, 22.06.2019 18:00
Which three statements represent the benefits of performing experiments using computer simulations?
Answers: 2
Chemistry, 23.06.2019 04:40
Equal numbers of moles of he(g), ar(g), and ne(g) are placed in a glass vessel at room temperature. if the vessel has a pinhole-sized leak, which of the following will be true regarding the relative values of the partial pressures of the gases remaining in the vessel after some of the gas mixture has effused?
Answers: 1
Chemistry, 23.06.2019 10:00
How many moles are equal to 2.4ร10^23 formula units of sodium chloride
Answers: 1
Aresearcher studying the nutritional value of a new candy places a 5.70 g 5.70 g sample of the candy...
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