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Determine the number of moles of salt do you want? Explain what type of volume of the concentrated solution is required?
In the natural gas the Hydrogen sulfide is an impurity that must be removed. One common removal method is called the Claus process, by which relies on this reaction:
At -10°C explain how much heat is required to convert 870. g of ice to steam at the 137°C? The specific heats of steam, ice and the liquid are 1.99 J/g·°C, 2.03 J/g·°C
Determine the number of milliliters of coffee can be acquired from 9 g of coffee beans where A pound of coffee beans yields the 50 cups of coffee i.e. 4 cups = 1qt.
Determine the dose in milligrams for a 110 lb person when the recommended adult dose of Elixophyllin a drug used to treat the asthma which is having the 6 mg/kg of body mass.
Calculate the rate of appearance of I2 at the same moment, at some moment in time suppose that the instantaneous rate of disappearance of the MnO4-ion in the following reaction is 0.00422 M/s?
Determine the number of carbon atoms are in 3.00 gram of butane when the fuel used in many disposable lighters in liquid butane,C4H10.
As a result of the reaction, 0.03 mole/liter of H+ was produced. An enzyme-catalyzed reaction was carried out in a 0.1 M TRIS (pK =8.1) buffer at pH 7.8. TRIS+ and TRIS0 represent the acidic and bas
One of the easiest ways to eliminate solid waste is to use it as landfill. Evaluate whether the garbage from your town or city goes to a landfill site.
To reduce hazardous waste is to stop using harmful chemicals, it is the best way. Calculate the chemicals in household products such as polishes, cleaning agents and the pest-control sprays.
Draw a structure that describe this and specifies the expected direction of the molecular dipole moment. The condensed structure for dimethyl ether looks symmetrical. Though, dimethyl ether has a d
Which of the following is a property of a sample of a substance would not be characteristics of the substance and hence would not be useful in identifying the substance?
Explain why does a nitrate ion not give a substitution product, while one distinguishes that the nucleophile in a SN1 reaction does not play a major role?
A solution collected of 10% methanol (MeOH), 50% ethanol (EtOH) and 40% water (H2O) is fed at the rate of 100 kg/hr into a separator that constructs one stream at the rate of 60 kg/hr with the compo
Write the corresponding letter designations from there agent sheet of the reagents you would use (in conjunction with benzene) in the order.
Determine the number of liters of acetylene gas at 0.00 degrees Celsius and 1.00 atm pressure are formed from 75.0 grams of calcium carbide, if the reaction is CaC2 + 2H2O -->H2C2 + Ca(
If a solution is having 98.0 wt/wt % of sulphuric acid and having the density of 1.80 g/mL, Determine the molarity of concentrated sulfuric acid.
Calculate the number of moles of P4 if a sample has the 52.0g of elemental phosphorus, P4. Explain and show how you solved this.
Calculate the volume collected to STP conditions? Calculate the density (g / L) of the gas at STP conditions?
Write the equation for the gas-phaserxn of nitrogen dioxide with ammonia by using the whole number of coefficients to form the nitrous oxide and water vapor.
Determine how many electrons are essential to construct a charge of -0.90 C? Calculate the mass of this many electrons?
If in a "coffee cup" calorimeter the 0.050 mol of hydrochloric acid, HCl is mixed with the 0.050 mol of sodium hydroxide, NaOH, then the temperature of 50.0 g of the resulting solution increases fro
The standard enthalpy of atomization of an element is the energy needed to convert 1 mole of an element in its most stable form at 25 centigrade to 1 mole of monatomic gas.
In an excited state an electron in a hydrogen atom can return to the ground state in two different ways: first, through the direct transition in which a photon of wavelength λ1 and secon
Someone investigating the properties of solutions having the carbonate ions organized a solution having 5.728g Na2CO3 in a flask of volume 250ml and some of the solution was transferred to a burette