A commercial pesticide formulation contains 1.0 g deltametrin in 1L solution. What is its concentration in ppm?
A commercial pesticide formulation contains 1.0 g deltametrin in 1L
solution. What is its concentration in ppm?
How many grams of solute is present in 0.4 moles Magnesium hydroxide,
Mg(OH)2 in 550 g water, H2O? The molar mass of Mg(OH)2 is 58 g/mol.
Calculate the molar concentration of a solution that contains 23 g of potassium
hydroxide. KOH in 250 ml of solution. Molar mass of KOH is 56 g/mol.
Calculate the mole fraction of sulfuric acid (H2SO4) in 8% (wt/wt) aqueous
H2SO4 solution (molar masses: H2SO4 = 98 g/mol, H2O = 18 g/mol
The label of betadine skin cleanser says 7.5 % solution. Taking it to be %
(wt/vol), how many grams of betadine (Providone-Iodine) are present in 50
mL bottle?
A brand of rubbing alcohol says, it contains 70% (vol/vol) isopropyl alcohol.
How many mL of isopropyl alcohol are there in 600 ml of the solution in the
bottle?
If 7.5 g of sodium nitrate, NaNO3 is dissolved in 85ml of H2O (density of H2O
= 1.0g/ml), calculate the %(wt/wt) concentration of H2O in the solution.
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