How many moles are equal to 4.0x1023 atoms of germanium?

Listen example of how to test a hypothesis using a scientific inquiry

If 1.30 grams of a protein (non - electrolyte) are added to a 100.0 mL of water, the osmotic pressure of the resulting solution is 0.0074 atm at 298 K. What is the molar mass of the protein?

Nahco3 is the active ingredient in baking soda. how many grams of oxygen are in 0.72 g of nahco3?

A 3.2-l volume of neon gas (ne) is at a pressure of 3.3 atm and a temperature of 330 k. the atomic mass of neon is 20.2 g/mol, avogadro's number is 6.022 * 1023 molecules/mol, and the ideal gas constant is r = 8.314 j/mol · k = 0.

Which statement best describes the polarity of the molecule Sil_? A. It is nonpolar, because the bonds between silicon (Si) and iodine (l) are not polar. B. It is nonpolar, because the bond polarities cancel each other out in a tetrahedral molecule.

How many atoms are there in 2.3 grams of H?

Which of the following would dissolve in water, and why? None of these substances would dissolve in water Candle wax, it is a nonpolar substance Motor oil, its primary IMF is London Dispersion Forces Acetic acid, it ionizes into ions when added to

Have a region surrounding the central area called

1. Simplify. | A. O 16 B. O C. 04 D. O

What is the (H+), if the pH of a solution is 3.20?