Search & Filtering
One sewage treatment plant, bacteria cultures produce 1000 L of methane gas per day at 101.3 K PA pressure. What volume tank would be needed to store one days production at 505.5 K PA
Calculate the ΔHoformethanegas,CH4,producedfromgraphiteandhydrogengasaccording
tothefollowingreaction:C(graphite)+2H2(g)CH4(g)
Data given:
a. C(graphite)+O2(g)CO2(g)
ΔHo=-393.5kJ
b.H2(g)+½O2(g)H2O(l)
ΔHo=-285.8kJ
c.CH4(g)+2O2(g)CO2(g)+2H2O(l)
ΔHo=-890.4kJ
we have the solution containing 6.35 g nonelectrolyte dissolved in 500g of water freezes at -0.465°C. Determine the molecular weight of the solute.
as we the Repeatable entity of a crystal structure is known as
Describe a simple chemical test to differentiate between n- propyl amine and allyl amine. Describe what you would observe and show the relevant chemical equations
(1).List down ten donts and dos in the laboratory.
(2)list down 20 laboratory safety rules.
(3)what is sterilization.
(4) list down methods of sterilization
A water sample is alkaline to both phenolphthalein and methyl orange. 0.50 mlof this sample requires 15 ml of H2SO4 for phenolphthalein indicator and another 10 ml for complete neutralization. Calculate the type of alkalinity in ppm.
A 100ml water sample on titration with N/50H2SO4required 4.7 ml of acid upto phenolphthalein endpoint. Addition of methyl orange to the same solution required 10.5ml of same acid. Elucidate the type and extent of alkalinity present in water sample.
1.0 mole of a gas occupies a volume of 22.4L gas at 0°c and 1atm. what would be the volume of 7.5 mol of the gas at the same temperature and pressure
Draw 30 laboratory safety symbols with their corresponding meaning
