Match each word to it's correct meaning.
1 answer:
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Answer:
Density = 0.0007667 Kg/cm³
Explanation:
Given the following data;
Mass of empty beaker = 0.50 kg
Volume of solution = 300 cm³
Mass of glass+solution = 730 g
To find the density of the solution in the glass;
First of all, we would convert the value in grams to kilograms.
Conversion:
1000 grams = 1 kg
730 = X kg
Cross-multiplying, we have;
X = 730/1000 = 0.73 kg
Next, we would determine the mass of the solution.
Mass of solution = Mass of glass+solution - Mass of empty beaker
Mass of solution = 0.73 - 0.50
Mass of solution = 0.23 kg
Lastly, we would solve for the density of the solution;
Density can be defined as mass all over the volume of an object.
Simply stated, density is mass per unit volume of an object.
Mathematically, density is given by the formula;
Substituting into the formula, we have;
Density = 0.0007667 Kg/cm³
Answer :
The molar mass of ibuprofen is, 206.29 g/mole.
The number of moles of ibuprofen in a single tablet is, 0.000969 moles
The number of moles of ibuprofen in four doses is, 0.007752 moles
Solution : Given,
Molar mass of carbon = 12.01 g/mole
Molar mass of hydrogen = 1.01 g/mole
Molar mass of oxygen = 15.99 g/mole
1) Now we have to calculate the molar mass of ibuprofen.
Molar mass of ibuprofen, =
The molar mass of ibuprofen = 206.29 g/mole
2) Now we have to calculate the moles of ibuprofen.
Formula used :
Given : Mass of ibuprofen = 200 mg = 0.2 g (1 mg = 1000 g)
The moles of ibuprofen = 0.000969 moles
3) Now we have to calculate the number of moles of ibuprofen for four doses.
Number of tablets in one dose = 2
Total number of tablets in 4 doses = 4 × 2 = 8
Number of moles of ibuprofen in 8 tablets =