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What is the molecular formula of a gas that has a density of 1.88 g/L at STP? this is not the actual numbers but it would be nice to know how to do this.
The initial concentration of the reactant A in a first-order reaction is 1.2M. After 69.3 s, the concentration has fallen to 0.3M. What is the rate constant k
What is the overall reaction rate order of the reaction in (2)? What is the difference between the (1) and (4)?
what is the ph solution obtained by mixing 25.00 ml of 0.250 ml HCl and 25.00ml of 0.125M NaOH
Determine the amount of heat produced when 100 g of CH4 combust, CH4 + 2O2 yields CO2 + 2H2O + 1063kJ
The reaction can be represented as {\rm 2 NI_3 (s)\rightarrow N_2 (g) + 3 I_2 (g)},~{{\Delta H}}_{\rm rxn} = -290.0~{\rm kJ} Find the change in enthaply when 16.0g of \rm NI_3 decomposes.
The analysis of a hydrocarbon revealed that it was 85.6281% C and 14.3719% H by mass. When 2.55 g of the gas was stored in a 2.5 L flask at 127.276 C.
Enantiomers and Order of Elution, The enantiomers (R and S forms) of the following chiral alcohols need to be separated by a suitable CHIRAL SEPARATION method.
Titanium crystallizes on a body-centered cubic lattice with a unit cell edge length of 3.28 Å. The density of titanium is 4.54 g /?cm3. The atomic mass of titanium is 47.88.
What volume will 454 grams (1 lb) of hydroigen occupy at 1.05 atm and 25 C.
A sample of CO2 gas at 795 torr is cooled from 25°C until the new pressure is 125 torr. Calculate the new temperature of the gas.
An underground reservoir contains natural gas at a pressure of 425 kPa and a temperature of 15 °C. If the volume of the reservoir is 1.3 x 104 kL
A gas sample has an original volume of 680 ml when collected at 720mm and 28C. what will be the volume of the gas sample if the pressure increases to 820 mm and the temperature increases to 55C?
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