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Nutritional Measurement
The nutritional content information is provided on the side of the label of foods you purchase at the grocery store and is required by the FDA. The figures are based on a 2000 calorie diet. The serving size is provided on the label i.e. 2 crackers or 1 cup. Included on the label that is required by the FDA will provide consumers with the Total Fat, Saturated Fat, Trans Fat, Cholesterol, Sodium, Total Carbohydrate, Protein, different vitamins and other necessary information about food content. The ingredients are also listed on the label in order from highest quantity to lowest quantity.
1,600 Questions
When measuring the pH of any substance you are measuring the concentration of what element?
pH is the measure of the concentration of hydrogen ions, which are in fact protons (although it is debatable as to whether they should be considered as hydrogen ions or hydronium ions (H3O+ i.e. a water molecule that has picked up a proton).
It is measured on a logarithmic scale, and pH is defined as -log[H+].
[] indicate concentration.
Logarithm is base 10.
Lower pH actually means higher concentration of protons because of how the function written above works. The concentration is usually written in scientific notation, and the exponent on the 10 is frequently negative. A larger negative exponent (10^-12) is indicative of a smaller concentration than a less negative exponent (10^-3). The negative sign in front of the logarithm makes (most) pH readings positive, and thus the smaller the pH the more H+ ions, and the more acidic.
Convert 400 mcg to milligrams?
***Except for the answer, the below was copied and pasted.***
To answer conversion questions like this go to Google.com and in the search window, type in your question like this..
24 cups in gallons
or this
4000 square feet in acres
or this
45 inches^3 in liters
and it will give you a direct answer.
It is great for this.
In your case type in
1 microgram/kg in microgram/gram
Note, you can also use the Google search window as a calculator. You might type in
23.5 x 54^2 x sqrt 5 =
If this is a homework question, the below is a very powerful and easy method to convert numbers from one unit to another.
Let us take an easy example.
Say you have 2.7 meters and you want to convert it to centimeters.
You know that 1m = 100 cm
Think about how we can take the equation 1m = 100 cm and divide both side by "1m" and get 1= 100 cm/m. (We have "re-arranged" the equation.)
Now think about how it is that if you multiply 2.7m by the number 1 you simply get 2.7m again.
Now think about how since "100 cm/m" equals 1 because 1= 100 cm/m you can multiply 2.7 m by "100 cm/m" and you will have the same distance. The only difference is that after you cancel out the meters the distance will be expressed in different units.
Here it is expresses mathematically...
2.7m = 2.7m X 1 = 2.7m X 100 cm/m = 270 cm. Notice how the meters cancel each other out and you are left with centimeters.
This always works
Here is a harder example.
Convert the speed 8,100 m/s to the units of km/hr
As discussed above since 1000m = 1 km, we will in this case divide both sides of the equation by "1000m" and get 1=(1/1000)km/m.
when we multiply by that and cancel out the meters, we get 8,100 m/s = 8.1 km/s.
(Note that we could have taken the equation 1000m = 1 km and divided both sides by "1km" to get 1 =1000m/km and then DIVIDED by 1000km/m and the meters would have still canceled out. Here is the math 8,100m/s = 8,100m/s / 1 = 8,100m/s / 1000m/km = 8.1 km/s )
Now to convert the seconds to hours we first convert the seconds to minutes by taking the equation 1min = 60s and dividing both sides by "1min" to get the equation 1 = 60s/min
When we multiply 8.1 km/s by the above we get 480 km/min
We do the same thing with the equation 1hr = 60 min to get 1 = 60 min/hr and when we multiply, we get 28,800 km/hr which is in the correct units.
For some reason it is not the law for physic teachers to tell their students about this method.
Here is website that goes into it in more detail.
http://oakroadsystems.com/math/convert.htm#Intro
How many grams of L-Arginine powder are in a tablespoon?
The weight of a tablespoon of L-Arginine powder can vary depending on the density and the particular brand of the powder. However, a general estimate is that a tablespoon of L-Arginine powder is equivalent to approximately 5 grams. It is always recommended to check the label of the specific brand of L-Arginine powder for accurate serving sizes and dosages.
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Why are jack o lanterns made of pumpkins?
Originally, the Irish and English would carve scary faces on turnips, beets and potatoes and place them in windows to frighten wandering evil spirits on Halloween.
When they immigrated to America, they started carving pumpkins (a fruit native to America) and found they were much better suited for Jack o Lanterns.
How many grams in one teaspoon?
.211
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The teaspoon is a measure of volume (in kitchen) having 5 mL in USA. The gram is a unit for mass. They are not compatible.
You need to know the density of the material to evaluate the mass:
Mass = volume x density
.
How many micrograms are there in 20 milligrams?
There are 1000 micrograms in a milligram. Therefore there are 0.02 milligrams in 20 micrograms.
second, minute, hour, day, week, fortnight, month, year, decade, century, millennium.
What is the difference between the old food guide servings and the new food guide servings?
People use to eat three big meals a day or at least two, now howerver, it is considered wise to eat at least five small meals a day. (small servings)
Fruit and vegetables are allowed as snacks.
There is a lot of fat in bologna because when you eat it the fat gets stuck in your teeth.
Do vegetables lose their nutritional value on heating?
The bottom line is this, and it is simple: eat vegetables raw whenever possible. Most people are adamant that every mild heating causes significant loss.
Depends. Three yards can be equal to -
Nine feet,
One hundred and eight inches, or just-
Three yards
