Get college assignment help at uniessay writers What is the oxidation number for each atom in C3H5(NO3)3?
What mass of Na2CO3 is required to complete reaction with 50.0mL of 0.125 M HNO3?
A gas has a volume of 5.80 at 0. What final temperature in degrees Celsius is needed to cause the volume of the gas to change to 160L?
A calorimeter contains 22.0 of water at 11.0. When 1.70 of (a substance with a molar mass of 51.0 ) is added, it dissolves via the reaction and the temperature of the solution increases to 26.5. Calculate the enthalpy change, , for this reaction per mole of . Assume that the specific heat and density of the resulting solution are equal to those of water [4.18 and 1.00 ] and that no heat is lost to the calorimeter itself, nor to the surroundings.
A solution contains 4.00 g of NaOH, 5.61 g of KOH, and 1.03 g of RbOH in 100.0 g of water. The solution has a density of 1.18 g/mL. What is the molality of OH−?
NH4NO2 is an equilibrium reaction
a 7.96 sample of a compound containing the elements C, H, and S is burned and found to form 16.65 mg of CO2. The sulfur in 4.31 mg of the compound is converted into sulfate by a series of reactions, and precipitated as BaSO4. The BaSo4 was found to have a mass of 11.96 mg. The molecular weight of the compound was found to be 168 g/mol. Using this data, what is the molecular formula of the C, H, S compound?
I just would like help on the fourth and fifth problem in the attached assignment. Thanks!
A calorimeter contains 20.0 of water at 11.5. When 2.50 of (a substance with a molar mass of 69.0 ) is added, it dissolves via the reaction and the temperature of the solution increases to 27.5. Calculate the enthalpy change, , for this reaction per mole of . Assume that the specific heat and density of the resulting solution are equal to those of water [4.18 and 1.00 ] and that no heat is lost to the calorimeter itself, nor to the surroundings.
Get college assignment help at uniessay writers Calcium carbide reacts with water to produce acetylene gas, C2H2. CaC2(s) 2 H2O(l) Ca(OH)2(aq) C2H2(g) Calculate the volume (in. … acetylene produced at 31 C and 684 mmHg from 0.035 mol CaC2 and excess H2O
Calculate the amount of heat transferred when 43.0 g of CH3OH(g) is decomposed by this reaction at constant pressure.
How many grams of hydrogen gas are required to react completely with 3.5L of nitrogen at STP?
Determine the molar mass of chloroform gas if a sample weighing 0.389g is collected in a flask with a volume of 102 cm cubed at 97 degrees celcius. The pressure of chloroform is 728 mmHg.
A formic acid solution has a pH of 3.25. Which of the following substances will raise the pH of the solution upon addition? A.HCL B.NaBr C.NaCHO2 D.NaNO2
given that the specific heat of water is 4.184 J/g degrees C, how much heat is generated when 400G of water is heated form 22 degrees Celsius to 60 degrees Celsius
is PbI2 an ionic compound?
a metal sample weighing 45.2g and at a temperature of 100.0 c was placed in 38.6 g of water in a calorimeter at 25.2 c. at equilibrium the temperature of the water and metal was 33.0 c. taking the specific heat of water to be 4.18 J/gC, calculate the specific heat of the metal.
The barametric pressure is reported a as 28.50inches Hg. Calculate the pressure in units of atm and units of torr. show the work
how to calculate molecular weight of a gas at 388 torr
1.994 g sample of ethanol, CH3CH2OH, is combusted in a bomb calorimeter. The temperature of the calorimeter increases by 10.91 K. If the heat capacity of the bomb is 615.5 J/K and it contains 1.150 kg of water, what is the enthalpy change per mole of ethanol combusted? The specific heat capacity of water is 4.184 J/g×K and the molar mass of ethanol is 46.07 g/mol.
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