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A patient takes 1gm of Calcium Carbonate salt three times a day. How much elemental calcium, in grams, is he getting in 24hrs? (MW of Ca: 40.078 g/mol, MW of CaCO3: 100.087 g/mol)
Suggested Answer: D
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37 comments · newest first
RE
Ressie
10 months ago
I thought it would be more than that, but okay!
LE
Leota
11 months ago
Totally agree, it’s definitely 1.2g!
BR
Brock
11 months ago
Wait, are we sure about those numbers? Seems off.
LA
Laurel
11 months ago
That's 1.2g of elemental calcium, right?
DU
Dusti
11 months ago
The patient takes 3g of Calcium Carbonate daily.
WI
Winfred
12 months ago
I’m pretty confident that 1g of CaCO3 gives us about 0.4g of elemental calcium, but I’m not sure how to multiply that for three doses.
ED
Edna
12 months ago
I practiced a similar question last week, and I think the answer was close to 1.2g, but I can't recall the exact steps we took to get there.
SA
Sabra
12 months ago
I think we need to find the percentage of calcium in CaCO3 first, right? I feel like it was around 40% or something like that.
NA
Nana
1 year ago
I remember we calculated elemental calcium from Calcium Carbonate in practice questions, but I'm not sure about the exact conversion factor.
CO
Colette
1 year ago
Okay, I think I've got it. Let me walk through this step-by-step: 1 gram of calcium carbonate contains 40.078/100.087 = 0.4 grams of elemental calcium. The patient takes 1 gram of calcium carbonate 3 times a day, so the total amount of elemental calcium per day is 0.4 x 3 = 1.2 grams.
TA
Tammi
1 year ago
I've got this! The molecular weight of calcium is 40.078 g/mol, and the molecular weight of calcium carbonate is 100.087 g/mol. So the percentage of calcium in the salt is 40.078/100.087 = 0.4 or 40%. Therefore, 1 gram of calcium carbonate contains 0.4 grams of elemental calcium. Multiplying that by 3 doses per day gives us 1.2 grams of elemental calcium per day.
BR
Britt
1 year ago
This looks straightforward. The question gives us the molecular weights, so we just need to do the math to find the amount of elemental calcium in 1 gram of calcium carbonate, and then multiply that by 3 doses per day.
CH
Cherry
1 year ago
Hmm, I'm a bit confused. Do we need to use the molecular weights to calculate the percentage of calcium in the salt? I'm not sure how to approach this.
MA
Mari
1 year ago
Okay, let's think this through step-by-step. We need to find the amount of elemental calcium in 1 gram of calcium carbonate, and then multiply that by the number of doses per day.
DO
Dong
1 year ago
Hmm, this is a tricky one. I'm not sure if FlexCard would be the best choice here, since it's more for building UI components. Maybe Integration Procedure could be used to handle the data transfer and email notification? I'll have to think this through a bit more.
RA
Raul
1 year ago
This looks like a straightforward question about internal control questionnaires. I'll need to carefully review the options and think about how each one relates to the key characteristics of these questionnaires.
TA
Tashia
1 year ago
I'd go with the SYSLOG server. It's the most appropriate solution for centralizing and managing system events and errors, and it should be able to handle the email notification part as well.
PO
Pok
1 year ago
Haha, I remember this type of question from my high school chemistry class. Brings back some memories, both good and bad!
KI
Kiley
1 year ago
Haha, I remember this type of question from my high school chemistry class. Brings back some memories, both good and bad!
MA
Maryann
1 year ago
That's correct! The patient is getting 3 grams of elemental calcium in 24 hours.
AL
Albina
1 year ago
A) 3 g
WI
William
1 year ago
This is a classic chemistry problem. I bet I can crack this like a nut. Time to put my math skills to the test!
LU
Lucy
1 year ago
Great job! You cracked the problem like a nut.
RA
Rana
1 year ago
That's correct! The patient is getting 3 grams of elemental calcium in 24 hours.
MA
Marva
1 year ago
A) 3 g
RO
Rosalind
1 year ago
Ah, the age-old question of how much calcium is in Calcium Carbonate. I've got a good feeling about this one. Let's do some calculations and find the answer!
DI
Diane
1 year ago
Great job on the calculations! It's always satisfying to figure out the amount of elemental calcium in a compound.
MI
Minna
1 year ago
Ah, the age-old question of how much calcium is in Calcium Carbonate. I've got a good feeling about this one. Let's do some calculations and find the answer!
GL
Glory
1 year ago
That's correct! The patient is getting 3 grams of elemental calcium in 24 hours.
CA
Carmelina
1 year ago
A) 3 g
TA
Tayna
1 year ago
Okay, let's break this down. The molar mass of Calcium Carbonate is 100.087 g/mol, and the molar mass of Calcium is 40.078 g/mol. This should be a piece of cake!
AN
Annice
1 year ago
I'm not sure, but I think the answer might be B) 1.8g. Can someone explain the calculation to me?
NO
Nohemi
1 year ago
Hmm, let's see. The patient is taking 1 gm of Calcium Carbonate, and we need to find the amount of elemental calcium. Time to put on my thinking cap!
RO
Ronny
1 year ago
That's correct! The answer is C) 1.2g.
RO
Ronny
1 year ago
The patient is getting 1.2g of elemental calcium in 24hrs.
MI
Misty
2 years ago
I agree with Jesus, because 1gm of Calcium Carbonate contains 0.4g of elemental calcium, so 3g in total.
JE
Jesus
2 years ago
I think the answer is A) 3g.