A syngas fuel consists of these following volumetric composition: 75% methane and 25% butane. The syngas at 100 kg/hour and 25 C is mixed with 20% excess air at 30 C. Due to incomplete combustion mechanics, 10%v of the syngas carbon is partially oxidized and forms carbon monoxide.

If the products of combustion are at 600K, obtain the combustion heat transfer rate from the system.

For the titration of 40.0 mL of 0.0100 M Sn2 by 0.0500 M Tl3 in 1 M HCl, using Pt and Ag | AgCl electrodes:

(c) What are the two Nernst equations for the cell voltage? The potential for the Ag | AgCl electrode is 0.197 V.]

(d) What is the value of E at the following volumes of added Tl3 ?

1.0mL 4.0mL 7.9mL 8.0mL 8.1mL 13mL

For the titration of 40.0 mL of 0.0100 M Sn2 by 0.0500 M Tl3 in 1 M HCl, using Pt and Ag | AgCl electrodes:

(c) What are the two Nernst equations for the cell voltage? The potential for the Ag | AgCl electrode is 0.197 V.]

(d) What is the value of E at the following volumes of added Tl3 ?

1.0mL 4.0mL 7.9mL 8.0mL 8.1mL 13mL

For the titration of 40.0 mL of 0.0100 M Sn2 by 0.0500 M Tl3 in 1 M HCl, using Pt and Ag | AgCl electrodes:

(c) What are the two Nernst equations for the cell voltage? The potential for the Ag | AgCl electrode is 0.197 V.]

(d) What is the value of E at the following volumes of added Tl3 ?

1.0mL

4.0mL

7.9mL

8.0mL

8.1mL

13mL

Find heat absorbed by water (kJ) and ΔrH (kJ mol-1) of the following reaction

Mg + 2 HCl (aq)   MgCl₂ + H₂

Mass of Mg: 20.8mg

Moles of Mg: calculate using formula m/M

Ti= 19.9 C

Tf= 33.4 C

density of water: 1g/mol

5M of 1.0 M HCl

V of water is 5g

Let X1 and X2 be uniformly distributed in the region [−1,1]×[0,1]∪(1,2]×(1,3].

1. Find Joint and Marginal pdf of X1 and X2.

2.Find V (X1 + 3X2) ，( I‘ve asked this question already, but the person didn't give me the correct answer, so please, dont waste my question, if you dont know how to answer this question.)

Dopamine hydrochloride injection is available in 5-mL ampuls containing 40 mg of dopamine hydrochloride per milliliter. The injection must be      diluted before administration. If a physician wishes to use sodium chloride injection as the diluent and wants a dilution containing 0.04% w/v of    dopamine hydrochloride, how much sodium chloride injection (in milliliters)            should be added to 5 mL of the injection?

During the transfer of two electrons from NADH to O2, protons pumped across the membrane to establish the electrochemical gradient. The amount of energy from previous problem consumed for maintaining membrane potential deltaY and gradient of protons across the membrane. Calculate the ratio of proton concentrations across the inner mitochondrial membrane, if the membrane potential was measured at 37 degrees C to be deltaY= 2.0 V.

A direct hydrogen fuel cell uses hydrogen and air (oxygen) to produce electricity, as we showed in class.

If you wanted a voltage of 2.2 V for your fuel cell device (which can be made of multiple cells), what mix of conversion and/or number of cells would you want to use? Remember: the voltage of cells in series adds up. There are a variety of possible answers.