the recommended Daily Allowance of niacin is15mg how many moles of vitaminB3 does the government recommend that you ingest every day RDA of niacin
2. given that one peanuts contains 220ug of niacin and there are 110 peanuts in a cup how many cups of peanuts do you need to eat to ingest the RDA of niacin
PLEASE write in good style. It is very difficult to read when we don't know whre the sentence starts and where it ends. Also, you might want to proof the posts, too, because this one contains gibberish in the send line. As I interpret this question, actually there are to.
A. How many mols niacin are needed?
B. How many cups of peanuts must we eat to get the RDA of nician?
A. mols = grams niacin/molr mass niacin = ?
B. 1 peanut = 220 ug.
110 peanuts in 1 cup.
? cups to get 15 mg (15,000 ug)
220 ug/peanut x 110 peanuts/cup x ?cups = 15,000.
Solve for ? cups. I went through in a hurry and came up with approx 1/2 cup.
second line and not send line
two at the end and not to.
These fingers don't work like they did when I was 25 and when I proof my eyes don't work either. :-)
To answer your question, we need to calculate the number of moles of Vitamin B3 (niacin) in the Recommended Daily Allowance (RDA) and then determine how many cups of peanuts are needed to reach that RDA. Here's how you can calculate it:
First, let's convert the RDA of niacin from milligrams (mg) to grams (g) since moles are generally calculated using grams. To convert, we divide the RDA by 1000:
15 mg = 15/1000 = 0.015 g
Next, we need to calculate the number of moles of Vitamin B3. To do this, we divide the grams of niacin by its molar mass. The molar mass of niacin (C6H5NO2) is approximately 123.11 g/mol.
Number of moles = Mass (g) / Molar Mass (g/mol)
Number of moles = 0.015 g / 123.11 g/mol
Now, let's calculate the number of moles:
Number of moles = 0.000122 moles
Moving on to the second part of your question, you want to know how many cups of peanuts you need to eat to ingest the RDA of niacin. To do this, we need to know how much niacin is present in a cup of peanuts.
You mentioned that one peanut contains 220 micrograms (ug) of niacin. To calculate the niacin content in a cup of peanuts, we multiply the niacin content of one peanut by the number of peanuts in a cup:
Niacin content in a cup = Niacin content per peanut × Number of peanuts in a cup
Niacin content in a cup = 220 ug/peanut × 110 peanuts = 24,200 ug/cup
Finally, we can calculate how many cups of peanuts are needed to reach the RDA of niacin (0.000122 moles):
Cups of peanuts needed = Moles of niacin desired / Niacin content in a cup
Cups of peanuts needed = 0.000122 moles / 24,200 ug/cup
Now, it's important to note that ug stands for micrograms, which is 1/1,000,000 of a gram (ug = 10^-6 g). To convert to grams, we divide by 1,000,000:
Cups of peanuts needed = 0.000122 moles / (24,200 × 10^-6 g)
Simplifying further, we find:
Cups of peanuts needed ≈ 0.005 cups
Therefore, you would need to consume approximately 0.005 cups (or approximately 0.4 tablespoons) of peanuts to ingest the RDA of niacin.
Please note that the calculations provided are approximations and may vary depending on the actual niacin content in peanuts. It's always best to consult reliable sources for specific nutritional information.