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(a)Draw a picture that represents a crystalline solid at the atomic level.
(b) Now draw a picture that represents an amorphous solid at the atomic level.
Assume that the ideal gas law is valid, with T=t(celcius)+a, and that the values of R and a are not known. Determine R and a from the measurements provided.
A sample of 4.00 g of gas occupies a volume of 1.47 L at 20.0 psi and - 40.0 °F. What is the identity of this gas?
What is the hydronium-ion concentration in a solution resulting from mixing 130. mL of 0.100 M HCN and 30.0 mL of 0.100 M KOH at 25°C? Ka for HCN = 4.9 × 10-10 at 25°C.
Calculate ?E, q, and w if 8.00 moles of CO2 (g) reacts with excess nitrogen gas according to the following reaction at 25°C and 1.00 atm: 4CO2(g) + N2(g)?4CO(g) + 2NO2(g)
Problem- Butane gas is compressed and used as a liquid fuel in disposable cigarette lighters and lightweight camping stoves. Suppose a lighter contains 6.29 mL of butane (d=0.579g/mL).
Comment on whether or not your calculation supports the idea that thermal pollution around the cooling vents of nuclear reactors is detrimental to marine life
What is the enthalpy change for the combustion of 12.5 g C4H10 in excess oxygen? C4H10 g + 13/2 O2 g = 4 CO2 g + 5 H2O g H= -1895 kJ
In climates where snow and ice cover roads in winter, some agencies spread solid ice melter on the road. suggest and identify for the ice melter and briefly explain how it works.
The amount of 2.50 mol of a perfect gas is heated from 100.0 K to 320.0 K. as a result, the gas expands against a constant pressure. determined the work done by the system
What are the empirical formula and the molecular formula of the compound.
A bar house with volume of 500 m^3, has 50 smokers in it. Each begins to smoke 2 cigarettes per hour at time t=0 hr. An individual cigarette emits about 1.4 mg of formaldehyde (HCHO).
The accepted toxic dose of mercury is 300ug/day there is 180ug of mercury per cubic meter of air. ingestion of 20,000L air per day is she at risk for mercury poisoning?
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