<Table> The most common composition of PBS (1X) <Tr> <Th> Salt </Th> <Th> Concentration (mmol / L) </Th> <Th> Concentration (g / L) </Th> </Tr> <Tr> <Td> NaCl </Td> <Td> 137 </Td> <Td> 8.0 </Td> </Tr> <Tr> <Td> KCl </Td> <Td> 2.7 </Td> <Td> 0.2 </Td> </Tr> <Tr> <Td> Na HPO </Td> <Td> 10 </Td> <Td> 1.44 </Td> </Tr> <Tr> <Td> KH PO </Td> <Td> </Td> <Td> 0.24 </Td> </Tr> </Table> <Tr> <Th> Salt </Th> <Th> Concentration (mmol / L) </Th> <Th> Concentration (g / L) </Th> </Tr> <Tr> <Td> NaCl </Td> <Td> 137 </Td> <Td> 8.0 </Td> </Tr> <Tr> <Td> KCl </Td> <Td> 2.7 </Td> <Td> 0.2 </Td> </Tr>

What is the molar concentration of 1x pbs