Oxalic acid is a weak acid sometimes used to clean or bleach materials. It is especially effective in removing rust. Oxalic acid has a molar mass of 90.0 g/mol. It contains 20.2% hydrogen, 26.6% carbon and % oxygen. What is the empirical formula of this compound?

the number of protons in the nucleus of a given element. has slight luster and conducts electricity at high temperatures like metal.but like a nonmetal,boron is brittle and does not conduct electricity well at low temperatures. in graphite, carbon is a soft,brittle solid.it is reflective,ductile,or malleable.

consider the reaction below.

 no rx

at 500 k, the reaction is at equilibrium with the following concentrations.

[pci5]= 0.0095 m

[pci3] = 0.020

[ci2] = 0.020 m

what is the equilibrium constant for the given reaction?

0.042

0.42

2.4

24