A mass of 1.0×10−5 μkgμkg is the same as   1.0×10−8 gg. 1.0 mgmg. 1.0×10−11 gg. 1.0 kgkg.

An aqueous ethanol solution has a density of 0.853 g/mL. What is the percent volume of ethanol in this solution? (Density of water is 1.00 g/ml and pure Ethanol is 0.79 g/mL) just answer in 2 significant figures and dont write the unit%.

Earth's oceans have an average depth of 3800 m, a total area of 3.63 x 10 km², and an average concentration of dissolved gold of 5.8 × 10. If a recent $987.00 troy oz what is the value of gold in the oceans? (I troy oz 31.1 g) Round your answer to 2 significant figures. Note: Reference the SI prefixes and Unit conversions for derived SI units tables for additional information. price of gold was 0

An acid is dissolved in another acid. Acid i has a specific gravity of 2.46 and a mass of 50 grams. Acid 2 is 50 mL What is the percentage by volume of the solute if Acid i is the solute in the solution? Assume the density of water to be i gram per ml. O 71.0983 O 40.6504 O 100.0000 O 28.9017

The dosage of quinine when a 145−lb adult takes a 200.−mg tablet is equivalent to _____ μg drug per kg of body weight.

A saline solution in a gallon jug is known to be 0.4 moles per liter. Marsha takes 20 mL from the jug, and does a Chemistry lab to determine the molarity. She finds the the solution is 0.37 moles per liter. Is the number 0.4 a statistic or a parameter?

What is the product. (1.40 x 10^2) (2.16 x 10^-6)

The dosage of quinine when a 145−lb145−lb adult takes a 200.−mg200.−mg tablet is equivalent to _____ μgμg drug per kgkg of body weight.

A given acid is 35.59 % by mass sulfuric acid, H2SO4, and the rest water. Its specific gravity is 1.29. Calculate the mass of pure H2SO4 in 76 ml of the acid