Question #8caa0 Chemistry Measurement Unit Conversions 1 Answer P dilip_k Feb 2, 2017 To convert #mmol"/L"->"percentage"# I assume conversion to #w"/v" # percentage is wanted here. Since the density of the mixture is not given. I am converting #mmol"/L"->g"/100mL"# So #mmol"/L"=(10^-3xx"mol")/(10^3xxmL)# #=(10^-3xx"mol"xx"molar mass")/(10^3xxmL)# #=(10^-3xx"mol"xxM"g/mol ")/(10^3xxmL)# #=(10^-4xxMg)/(100mL)# #=Mxx10^-4%# (w/v) #M"g/mol"->"molar mass of the substance"# For #5.4mmol"/L"=5.4xx10^-4M%# Answer link Related questions How can I memorize the metric system? How can you convert centimeters to millimeters? How can i convert centimeters to meters? What celsius temperature is the same when converted to fahrenheit? What metric unit is used to measure distance? How can I convert Celsius into Kelvin? If a planet is 13 billion kilometers from the Sun, and the distance of an Astronomical Unit (AU)... What is an example of a unit conversion practice problem? What is the pressure conversion factor for torr to kpa? How do you convert units of measurement? See all questions in Unit Conversions Impact of this question 1956 views around the world You can reuse this answer Creative Commons License