Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
1. Airbags contain a mixture of sodium azide, potassium nitrate, and silicon dioxide. A sensor detects a head on collision that cause the sodium azide to be ignited and to decompose forming sodium and nitrogen gas. This gas fills a nylon or polyamide bag such that the front face of the bag travels at a velocity of 150 to 250 miles per hour. This process, from the initial impact of the crash to full inflation of the airbag, takes only about 40 milliseconds. Sodium is very dangerous so the sodium reacts with potassium nitrate present to produce potassium oxide (K2O), sodium oxide (Na2O), and additional N2 gas. The N2 generated in this second reaction also fills the airbag. The metal oxides react with silicon dioxide (SiO2) in a final reaction to produce silicate(glass), which is harmless and stable.
a. Write a balanced chemical equation for the first reaction in the airbag gas generator (the decomposition of NaN3).
b. Write a balanced equation for the net gas-generating reactions (the combination of the first and second reactions).
c. If a car has an airbag that has a volume of 60.0L and the bag requires a pressure of 2.37 atm at 25.00C, calculate the grams of sodium azide needed to inflate the bag.
Which of the following pairs of amino acids would carry a negative charge on their side chain at pH 8.0?
A 240.0 mL buffer solution initially contains 3.0×10-2 M of HCHO2 and 3.0×10-2 M of NaCHO2. What mass of the correct reagent should you add
a. what is the orientation of the hydroxyl group when the compound is in chloroform solution? what evidence supports
the flask was filledto the calibration mark with water. What were the equilibrium concentrations of H3PO4,H2PO-, HPO-2, PO-3, and H+ in the resultant solution. Ka1 = 7.1x10-3, Ka2 = 6.3x10-8, and Ka3 = 4.2x10-13 for H3PO4.
the first-order rate constant for the decomposition of n2o52n2o5g ---gt4no2g o2gat 70c is 6.82 10 - 3s - 1. suppose
hydrochloric acid is sold as a concentrated aqueous solution. if the molarity of commercial hcl is 12.0 and its density
There is an integral membrane protein that symports an alanine and 2 Na+ ions from the plasma into the cytosol of the liver cell. What is the free energy of symporting alanine and 2 Na+ from the plasma into the cytosol of the liver cell?
Na2CO3 + CaSO4 --> CaCO3 + Na2SO4 Assuming that this reaction is complete and that there is 153mg/l of CaSO4 initially present, what is the mass load of the soda ash taht must be added to complete the reaction in:
the equilibrium would shift to the right making more products e. the equilibrium would shift to the left making more products
Chemical Kinetics - Show that only the reactants of the slow step of a reaction are found in the rate law of the reaction - which of the two steps is slower and which substance (if any) is probably an unstable intermediate?
what is the expected freezing point of a 0.50 m solution of li2so4 in water? kf for water is
A sample of gas occupies 7 ml at stp. at what pressure would this sample occupy 500 ml if the pressure was changed to 525 degrees c?
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +1-415-670-9521
Phone: +1-415-670-9521
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd