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During an airbag deployment for sedan, 75.0 L of nitrogen gas is produced at 25 C and 0.984 atm from the reaction of sodium azide, NaN3, and iron (III) oxide. Sodium oxide and iron metal are by-products. What is the mass necessary sodium azide for this reaction?
Provide the steps required to successfully recrystallize an impure solid and obtain a pure product.
Calculate the molar solubility of the following compounds from the Ksp values given, Zn(OH)2
The following reaction is second order in [A] and the rate of constant is 0.039 M-1s-1; A yields B; The concent. of A was 0.30 M at 23 s. The initial concent. of A was ___M
A mixture of C3H8 and C2H2 has a mass of 2.0 . It is burned in excess O2 to form a mixture of water and carbon dioxide that contains 1.5
The contact angle between water and a carbon nanotube (CNT) bundle is 86.3o (J. Phys. Chem. B, 2006, 110, 15945). If the surface tension of CNTs is ~28mN/m, calculate the interfacial tension between water and CNTs.
A.) If 75.0 g of sodium is mixed with 40.0 g of nitrogen gas, what mass of sodium nitride forms? B.) If the reaction in part A has a percent yield of 90 % , how much sodium nitride is actually produced
A block of alumium with a volume of 91.1cm^3 absorbs 64.6 j of heat. If its initial temperature was 33.7C, what is its final temperature
A solution of 100 mL of 0.2 M NH3 is titrated with 50 mL of 0.5 M HNO3. What is the pH of the resulting solution? Kb for NH3 is 1.8 × 10-5.
Precisely 1.00 x 10-3 mol of CaCl2, 0.100 mol of NaOH and 0.100 mol of Na3T were mixed as well as then diluted to 1.00 L. Explain what was the concentration of Ca(2+) in the resulting mixture
Combustion is not always complete, usually because of an insufficient supply of oxygen. Describe a hypothesis, including a chemical equation.
A gasous mixture of O2 and Kr has a density of 1.104 grams per liter at 435 torr and 300 K. What's the mole percent of O2 in the mixture?
If you added the oxidizing agent, chromate, to a solution of phenol, would the phenol be oxidized and would a green Cr3+ solution be formed
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