Rubbing alcohol is 70% isopropyl alcohol (C3H7OH) by mass. It has a density of 0.79 g/mL. Calculate the molarity and molality

Given f(x) = x- 7, what will f(12) be equal to? 12 19

(b) What is the first law of thermodynamic? Define the Hess law. Given the following data; 2CIF(g) + 0,(g) CI,0(g) + F,O(g) AH = 167.4 kJ AH = 341.4 kJ SH = -43,4 kJ 2CIF,(g) + 20,(g) → CĻ0(g) + 3F,O(g) 2F,(2) + O(8) → 2F,O(g) calculate AH for the reaction CIF(g) + F(8) CIF,(g)

337.1 nm(wavelength of a nitrogen laser) Express your answer using three significant figures.

Two types of renewable energy are photovoltaics (solar cells) and wind turbines.     Energy Type 1 nuclear 2 gravitational 3 thermal 4 electric 5 solar 6 chemical 7 kinetic The energy transformations in a wind turbine, from the sun’s energy to producing electricity are, in order a, b, c.The values of a, b, and c, respectively, are       2. The energy transformations in a solar cell, from the sun’s energy to producing electricity are, in order a, b.The values of a and b, respectively, are