Find the Percentage Composition of 0.68g of CaCO3 in 1.3g of antacid tablet.
I think it is 680/1300*=approx. 52%
You're right but I would have done it as (0.68/1.3) = 0.52 = 52%. I'm not being picky, rather, I'm pointing out that if I do it your way I'm doing two operations that are not necessary (multiplying both numerator and denominator by 1000 before dividing) and knowing me that's two more steps I can make a math error. And I will probably do that. :-(
To find the percentage composition of CaCO3 in the antacid tablet, you can use the following formula:
Percentage composition = (mass of CaCO3 / mass of antacid tablet) x 100%
Given that the mass of CaCO3 is 0.68g and the mass of the antacid tablet is 1.3g, you can calculate the percentage composition as follows:
Percentage composition = (0.68g / 1.3g) x 100%
= 0.523 x 100%
= 52.3%
Therefore, the percentage composition of CaCO3 in the antacid tablet is approximately 52.3%.
To find the percentage composition of CaCO3 in the antacid tablet, you need to calculate the mass of CaCO3 in the tablet and then express it as a percentage of the total mass.
First, find the mass of CaCO3 in the antacid tablet by multiplying the mass of the tablet (1.3g) by the fraction of CaCO3 in the tablet.
Given that the mass of CaCO3 is 0.68g and the mass of the tablet is 1.3g, you can multiply 0.68g by (1/1.3) to find the mass of CaCO3 in the tablet. This gives:
0.68g * (1/1.3) = 0.523g
So, the mass of CaCO3 in the antacid tablet is approximately 0.523g.
Now, you can calculate the percentage composition of CaCO3 by dividing the mass of CaCO3 by the total mass of the tablet (1.3g) and multiplying by 100 to get the percentage. Use the formula:
(0.523g / 1.3g) * 100 = 40.2%
Therefore, the percentage composition of CaCO3 in the antacid tablet is approximately 40.2%.