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Calculate the pressure exerted by 0.3000 mol of helium in a 0.2000 L container at -25 °C using
a. ideal gas law
b. van der Waal'sequation
What is the difference between the non-ideal and ideal gases?
Given:
aHe= 0.0341 atm·L2/mol2
bHe= 0.0237 L·mol
During the cooling of the fired crucible, water condensed on the crucible wall before its mass measurement. Will the percent water in the hydrated salt be reported as being too high, too low or unaffected? Explain.
The following reactions ZnBr2 (aq) + 2AgNO3 (aq) -->Zn(NO3)2 (aq) + 2AgBr (s) KBr (aq) + AgNo3 (aq) --> AgBr (s) + KNO3 are examples of a. oxidation- reduction reactions b. acid- base reactions c. precipitation reactions d. a and c e. none of thes..
A sample of a metal with specific heat .95 J/g C is heated to 80 C and then placed in a calorimeter with 450g of water. The initial temperature of the water is 19 C and the final temperature of the system is 25.1 C. What is the mass of the metal
You have a certified "5 ppm Fe standard" that you obtained from NIST. By your method you measured it to be 4.8 ppm. Discuss your measurement precision
Both the anode and the cathode are inert electorodes in a electrochemical cell. The liquid is molten potassium chloride, KCL. Determine whether this is a galvanic or an electrolytic cell and give teh reaction occuring at the anotde and teh raction..
The gas-phase dipole moment of the hydroxyl radical
The value of deltaH for the reaction CH3OH (l)---->CO (g) +2H2 (g) is +128.1 kJ? How many kJ of heat are consumed when 5.10 g of CO (g) is formed as shown in the equation
Use the equation pH= pKa + log ([conjugate base]/[acid]) to derive an expression showing the fraction of acid (f) in terms of its pKa and pH of the solution.
A boiler is used to heat steam at a brewery to be used in various applications such as heating water to brew the beer and sanitizing the brewing tanks. 81.0% of the heat produced by the boiler is used to create saturated steam at 18.0 bars (absolu..
The pressure in a gas arises because the particles of a gas strike each other and the walls of their container, exerting a ________. The larger the number of gas particles in a particular volume, the _______ the pressure within the gas.
A .sodium iodate and calcium nitrate B. sodium nitrate and potassium hydroxide C. sodium iodate and iron (III) chloride D. sodium iodate and potassium hydroxide.
What are the many things that can go wrong and create chronic diseases? Who is at risk? What nutritional changes can we make to prevent and/or manage CVD problems?
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