Other Chemistry Answers

Calculate ∆H for:- CaO(s)+SO3(g) gives CaSO4(s) (∆H=?) From the following given data (1)H2(g)+1/2 O2(g) gives H2O(1) (∆H = -285.8 Kj) (2) SO3(g)+H2O(1) gives H2SO4(1) (∆H = -132.5 Kj) (3) H2SO4(1) + Ca(s) gives CaSO4(s) + H2(g) (∆H= -602.5 Kj) (4) Ca(s) + 1/2 O2(g) gives CaO(s) (∆H=-634.9 Kj)

A sample of hydrogen exerts a pressure of 0.389 ATM and has a volume of 7.0L the pressure increases to 3.35 ATM at constant temperature what will its new volume be

In an experiment 0.197 g of gold metal reacts to yield 0.303g of gold (III) chloride. Using the conservation of mass law, predict the mass of reacting chlorine gas
Au(s)+Cl2(g)=2AuCl3(s)

how old is a bone if it presently contains 0.3125g of C-14, but it was estimated to have originally contained 80.0g of C-14 (C-14 Half-life=5730 years)

What is the coefficient of hydrogen gas after balancing the following equation _N2(g)+_H2(g)=_NH3

Why is water an amphoteric molecule

What is hybridization? Discuss sp2 hybridization in carbon.

State the relevant laws which are applicable on the following observation of gas: (1) Both C3H8 and CO2 have equal rate of diffusion.(2)1 dm3 O2 and 1 dm3 H2 contains same number of moles at STP.

How do you calculate the value of /\H for the reaction C2H4(g) + H2 (g) arrow pointing right C2H6 (g)

a 0.582-mol sample of an ideal gas is at 15*c and 81.8 kpa. calculate the volume for the ideal gas, as described by the ideal gas low.
a.0.887 L
b.10.4 L
c.17.0 L
d.22.4 L
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