A solution of sodium hydroxide was prepared by dissolving 0.93g of sodium oxide in 75.0 cm3 of water. Aqueous hydrochloric acid was prepared at room temperature and pressure by dissolving 240.0 cm3 of hydrogen chloride gas in 100.0 cm3 of water.
a. Calculate the molar concentration and mass concentration of;
(i) sodium hydroxide
(ii) hydrochloric acid.

Which of these conditions most likely produces an unstable isotope?

According to the valence shell electron pair repulsion (vsepr) theory, a molecule that has four electron groups around the central atom will exhibit what electron geometry? view available hint(s) according to the valence shell electron pair repulsion (vsepr) theory, a molecule that has four electron groups around the central atom will exhibit what electron geometry? trigonal bipyramidal tetrahedral square planar determination of electron geometry requires information on whether the electron groups are lone pairs or bonding groups.

What is the approximate mass of 25 cm3 of silver, if the density is 10.5 g/cm3? a. 0.42 g b. 2.4 g c. 42 g d. 260 g