General Chemistry Answers

In older airbags, sodium azide, NaN3, was used as a source of nitrogen gas to rapidly inflate the airbag. This practice was mostly discontinued due to the high toxicity of sodium azide. The reaction of interest is 2 NaN3 (s) → 2 Na (s) + 3 N2 (g) 

How many grams of N2 are produced if a 35.0 g charge of NaN3 decomposes?

Considering the same prompt, suppose I wanted to inflate a 125 L airbag with N2 (g) to a density of 0.450 g N2 / L. This is more or less a typical value for the passenger airbag. To do so I would need Answer g of N2 (g).

Considering the reaction for the decomposition of sodium azide, this would require a Answer g of NaN3.

This same process would produce Answer g Na (s). Keep in mind that sodium metal is highly reactive, and that a dose of ~ 2 g of sodium azide can be lethal. Sodium azide is still used in some airbags, but it has largely been phased out due to the legitimate safety concerns. 

 In older airbags, sodium azide, NaN₃, was used as a source of nitrogen gas to rapidly inflate the airbag. This practice was mostly discontinued due to the high toxicity of sodium azide. The reaction of interest is 2 NaN_3 (s) → 2 Na _(s) + 3 N_2 (g) 

How many grams of N₂ are produced if a 35.0 g charge of NaN₃ decomposes?

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1)  Many chemical processes release waste products into the atmosphere. Scientists are developing new solid catalysts to convert more efficiently these emissions into useful products, such as fuels. One example is a catalyst to convert these emissions into methanol. The catalyst is thought to work by breaking a H–H bond.

          An equation for this formation of methanol is given below.

          CO2(g) + 3H2(g) CH3OH(g) + H2O(g) ∆H = −49 kJ mol−1

(a)        Use the enthalpy change for the reaction and data on bond entahlpies to    calculate a value for the C=O bond enthalpy. 

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How do i solve this? Hydrogen and iodine gas react to form hydrogen iodide, as shown in the equation H2(g) + I2(g) → 2HI(g). Suppose you are given a time interval from t1 = 10 seconds to t2 = 20 seconds and a change in H2 concentration from0.210 mol/L to 0.185 mol/L.

A coin 2.0 cm in diameter is held 20cm from a concave spherical mirror of 30 cm radius of curvature. Locate the image of the coin and its height

An object is placed 2.0 cm in front of a concave spherical mirror whose radius of curvature is 8.0 cm. Use the mirror equation to locate the position of the image and its size

a flea is located 3.0 cm from a convex spherical surface of radius 10 cm. Where is the image of the flea?