The
recommended daily dietary intake of calcium for adult men is 1100
mg/day. Calcium citrate, Ca3(C6H5O7)2...
The
recommended daily dietary intake of calcium for adult men is 1100
mg/day. Calcium citrate, Ca3(C6H5O7)2 (MW=498.5g/mol). What mass of
calcium citrate would be needed to provide the recommended daily
intake of calcium?
Solutions
Expert Solution
498.5 g Calcium citrate -------------------> 3 x 40 =120 g
Ca
?
---------------> 1100mg = 1.1g
mass of Calcium citrate required = 1.1 x 498.5 / 120
It is recommended that the daily intake of sodium be 2600 mg per
day. From a previous study on a particular ethnic group, the prior
distribution of sodium intake is believed to be normal with mean
3000 mg and standard deviation 300 mg. If a recent survey resulted
in a mean of 3500 mg and standard deviation of 350 mg. Obtain a 99%
Credible Interval for the mean intake of sodium for this ethnic
group. Let n=1
.
You don't...
The recommended dietary allowance (RDA) of iron for adult
females is 18 milligrams (mg) per day. The given iron intakes
(mg) were obtained for 45 random adult females. At the 10%
significance level, do the data suggest that adult females are,
on average, getting less than the RDA of 18 mg of iron? Assume
that the population standard deviation is
4.7 mg. Preliminary data analyses indicate that applying the
z-test is reasonable. (Note: =14.79 mg.)
could you please go into...
How could an individual improve dietary calcium intake if
intakes are less than recommended? Consider differences in dietary
intakes and restrictions in the following subpopulations
i. Omnivores
ii. lactose intolerant individuals
iii. vegans:
PLease Answer all parts of the following:
a) The recommended daily allowance of calcium for men between
the ages of 19 to 50 is 1 000 mg Ca. Three multivitamin tablets are
analyzed for calcium gravimetrically with the precipitation of
calcium cation by oxalate anion. If the mass dry calcium oxalate
obtained is 2.0136 g, how many tablets must a man take in a given
day to meet the recommended daily allowance? Ca2+(aq) + C2O42−(aq) ==> CaC2O4 (s)
b) Aqueous...
Dietary Protein Intake in the
U.S.
1. On average, what is the daily dietary protein intake of
Americans compared to the daily recommended dietary allowance
(inadequate, meet/achieve, excessive)?
2.
a. What factors contribute to causing American’s dietary intake
to be this way?
b. Consider factors related to health, agriculture, food
access/availability, socioeconomic status, etc.
3.
a. Are certain groups/populations at increased risk of consuming
an inadequate protein intake?
b. Consider reasons related to increased protein requirements,
poor access, ethical reasons,...
Dietary Protein Intake in the
U.S.
1. On average, what is the daily dietary protein intake of
Americans compared to the daily recommended dietary allowance
(inadequate, meet/achieve, excessive)?
2.
a. What factors contribute to causing American’s dietary intake
to be this way?
b. Consider factors related to health, agriculture, food
access/availability, socioeconomic status, etc.
3.
a. Are certain groups/populations at increased risk of consuming
an inadequate protein intake?
b. Consider reasons related to increased protein requirements,
poor access, ethical reasons,...
Dietary Protein Intake in the
U.S.
1. On average, what is the daily dietary protein intake of
Americans compared to the daily recommended dietary allowance
(inadequate, meet/achieve, excessive)?
2.
a. What factors contribute to causing American’s dietary intake
to be this way?
b. Consider factors related to health, agriculture, food
access/availability, socioeconomic status, etc.
3.
a. Are certain groups/populations at increased risk of consuming
an inadequate protein intake?
b. Consider reasons related to increased protein requirements,
poor access, ethical reasons,...
Dietary Protein Intake in the
U.S.
1. On average, what is the daily dietary protein intake of
Americans compared to the daily recommended dietary allowance
(inadequate, meet/achieve, excessive)?
2.
a. What factors contribute to causing American’s dietary intake
to be this way?
b. Consider factors related to health, agriculture, food
access/availability, socioeconomic status, etc.
3.
a. Are certain groups/populations at increased risk of consuming
an inadequate protein intake?
b. Consider reasons related to increased protein requirements,
poor access, ethical reasons,...
You are considering two different calcium supplements. One
contains 1250 mg of Ca3(PO4)2 and
the other is 1500 mg of CaCO3. As a good chemist you are
interested in the percent mass of calcium in each compound,
Ca3(PO4)2 versus CaCO3.
Calculate the mass percent of calcium in each compound AND in each
supplement serving.