While working on his diet log, Carlos observed that the Nutrition Facts label for crackers states that one serving contains 22.5 g of carbohydrate, 4 g of fat, and 2.5 g of protein. If Carlos eats one serving of crackers, how much energy, in kcals, did he consume?
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Chemistry, 21.06.2019 13:30
One of the following properties was originally used to arrange elements on the periodic table, but is no longer used to organize the modern version. which property fits this description?
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Chemistry, 21.06.2019 14:30
Find the mass in grams of hydrogen gas produced when 14.0 moles of hcl is added to an excess amount of magnesium.
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Chemistry, 22.06.2019 08:00
Straightforward questions answered in the powerpoint slidesreaction: heating the starting materials under refluxwhat does it mean to heat under reflux? why do we choose water as the reflux solvent? what are boiling chips used for? why do we put a condenser on top of the reaction? why do we add heat and let the reaction stir for 30 minutes? why do we add sulfuric acid to the reaction after it cools as opposed to when it’s still hot? separation: filtration of precipitatewhy don’t we do an aqueous and organic extraction in the separatory funnel? why do you rinse the salicylic acid on the filter with ice cold water? purification: recrystallization of salicylic acid (no hot filtration needed)what is the difference in the amount of room temperature water vs. boiling water needed to dissolve the salicylic acid (assume a 1.2 gram yield of salicylic acid)? remember, in the lab if you need x ml of boiling water to dissolve a solid, then you should add a little more (definitely no more than 1.5 times the theoretical amount) to ensure it doesn’t recrystallize prematurely.analysis: melting point of salicylic acidwhat can you conclude if the melting point of the salicylic acid you just synthesized is 152-155oc and the 1: 1 mix of your product and “synthetic” salicylic acid is 151-154oc?
Answers: 1
While working on his diet log, Carlos observed that the Nutrition Facts label for crackers states th...
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