Use the following balanced equation for problems 1–5. Molar masses are given below. 2 As + 3 H2 → 2 AsH3 + 150. kcal molar masses: As = 74.92 g, H2 = 2.02 g, AsH3 = 77.95 g How much energy is released when 22.00 g of H2 are consumed ?

Gas molecules experience friction when traveling through space

It required 66.66 mL of 2.000 M Al(OH)3 to titrate (neutralize) 100.00 mL of an HBrO3 solution. What is the molarity, M, of the HBrO3 solution ? 3 HBrO3 + Al(OH)3 → 3 H2O + Al(BrO3)3

Glass is an amorphous solid

Answer the following about drawing the attractive force between a water molecule (H2O) and a carbonate ion (CO3-2). The strongest attraction between the two molecules is

How many CAL must be added to heat 399.9 g of water from -20.0oC to 95.0 oC ? Don’t do the calculation, just indicate which conversion factors would be used __1__ specific heat of the solid, 0.504 cal/goC __2__ specific heat of the liquid, 0.999 cal/goC __3__ specific heat of the gas, 0.497 cal/goC __4__ heat of fusion, 79.7 cal/g __5__ heat of vaporization, 539 cal/g A.  used           B.  not used _______ _______ _______ _______ _______

An electrolyte solution will exhibit the Tyndall effect

The solubility of oxygen in water at 1.00 atm and 30.0 oC is 0.00076%. How many grams of oxygen would be expected in 1000. g of water ?

A colloidal dispersion must be stirred or it will settle to the bottom

If the partial pressure of O2 is 40 torr in the blood and 45 torr in the tissues, then O2 will diffuse from the tissues into the blood