A brownie contains 1.30 ×102 mg of sodium. What is this mass equivalent to it in units of grams?
130 mg = 0.130 grams.
To convert milligrams (mg) to grams (g), you need to divide the quantity in milligrams by 1000 since there are 1000 milligrams in one gram.
So, to convert 1.30 × 10^2 mg to grams, you divide it by 1000:
1.30 × 10^2 mg ÷ 1000 = 1.30 × 10^2/10^3 g
Simplifying the denominator by subtracting the exponents:
1.30 × 10^2 ÷ 10^3 g
Apply the division rule for exponents with the same base:
1.30 × 10^(2-3) g = 1.30 × 10^(-1) g
Finally, convert the scientific notation back to decimal notation:
1.30 × 10^(-1) g = 0.13 g
Therefore, 1.30 × 10^2 mg is equivalent to 0.13 grams.
To convert milligrams (mg) to grams (g), you need to divide the amount in milligrams by 1000, because there are 1000 milligrams in a gram.
So, to convert 1.30 × 10^2 mg to grams:
1.30 × 10^2 mg ÷ 1000 = 0.13 g
Therefore, 1.30 × 10^2 mg of sodium is equivalent to 0.13 grams.