calculate the weight of aspirin in mg per tablet using the following equations:
weight of aspirin=MnaoHXvnaoHXmolar mass of aspirin
urgent answer pls...
Two problems.
1. I have no idea what those letters stand for.
2. There are no values given to calculate anything.
On second thought M probably stands for Molarity of NaOH and v probably stands for volume of NaOH. Still we need numbers to calculate anything.
To calculate the weight of aspirin in mg per tablet, you need to know three factors: the molar mass of aspirin (M), the Avogadro's number (Na), and the tablet's volume (V).
1. Find the molar mass of aspirin:
The molar mass of aspirin (M) can be found by adding up the atomic masses of each of its constituent elements. The molecular formula for aspirin is C9H8O4. You can find the atomic masses of carbon (C), hydrogen (H), and oxygen (O) from the periodic table.
C: Atomic mass = 12.01 g/mol
H: Atomic mass = 1.01 g/mol
O: Atomic mass = 16.00 g/mol
Calculate the molar mass of aspirin:
Molar mass of aspirin (M) = (9 x 12.01 g/mol) + (8 x 1.01 g/mol) + (4 x 16.00 g/mol)
2. Determine the Avogadro's number:
Avogadro's number (Na) is a constant representing the number of atoms or molecules in one mole of a substance. Its value is approximately 6.022 x 10^23 mol^-1.
3. Measure the tablet's volume:
To calculate the weight of aspirin in mg per tablet, you need to know the volume of the tablet. This can be determined by measuring the dimensions of the tablet or by referring to the manufacturer's specifications.
Once you have the volume (V) in cubic centimeters (cm^3), convert it to liters (L) by dividing by 1000.
4. Calculate the weight of aspirin per tablet:
The weight of aspirin in milligrams (mg) per tablet can now be calculated using the equation you provided:
Weight of aspirin (mg) = M x Na x V
Substitute the values of M, Na, and V into the equation and perform the calculation to find the weight of aspirin in mg per tablet.
Please note that accurate measurement of the tablet's volume and use of correct molar mass values are vital to obtaining an accurate result.