State molarity is a common unit of concentration

Assignment Help Chemistry

Reference no: EM13163593

Chemists often use molarity ,M in Moles/liter , to measure the concentration of solutions. Molarity is a common unit of concentration because the volume of a liquid is very easy to measure. However, the drawback of using molarity is that volume is a temperature-dependent quantity. As temperature changes, density changes, which affects volume. Volume markings for most laboratory glassware are calibrated for room temperature, about 20 degrees C. Fortunately, there are several other ways of expressing concentration that do not involve volume and are therefore temperature independent. A mass of .630 g of NaCl is dissolved in 525 g of water. 1. calculate the molality of the solution 2. Calculate the mole fraction of salt in the solution 3. Calculate the concentration of the salt solution in percent by mass 4. Calculate the concentration of the salt solution in parts per million Include units for each

Reference no: EM13163593

Questions Cloud

Compute the ph of the buffer that reults from mixing : Calculate the pH of a buffer solution that is 0.200 M HC2H3O2 and 0.100 M in NaC2H3O2. Calculate the pH of the buffer that reults from mixing

Explain what is the rate of the above reaction : What is the rate of the above reaction? What is the closest numerical value of K for the above reaction? What are the units for the rate constant for the reaction?

State ammonium carbamate found in urine of mammals : Ammonium carbamate (NH2COONH4) is found in the blood and urine of mammals. At a temperature of 466 K, Kc = 0.080 for the following equilibrium: NH2COONH4(s) 2 NH3(g) + CO2(g). If 10.2 g of ammonium carbamate is introduced into a 0.500 L containe..

Explain the increased epinephrine will increase : you are taking a walk when a bid mean dog growls and begins to chase you. The increased epinephrine will increase? a glycolysis in the liver b glycolysis in the muscle

State molarity is a common unit of concentration : Chemists often use molarity ,M in Moles/liter , to measure the concentration of solutions. Molarity is a common unit of concentration because the volume of a liquid is very easy to measure

State aldol reaction to form ethyl trans-cinnamate : Why isn't sodium hydroxide? In the reaction of Aldol reaction to form ethyl trans-cinnamate. Reactant are Benzaldehyde and ethyl acetate.

Explain the uncatalyzed decomposition of hydrogen peroxoide : the uncatalyzed decomposition of hydrogen peroxoide is first order with an activation energy of 75.3 kj/mol and a half life of 6 hrs at 40 degrees celcius.

A linked list of your song structure in cd : The CD object should have a data member that is a linked list of your song structure that you have in CD. The CD class needs a function that allows it to add a song to the object, that function would then append the song to that instance of the link..

Explain volumetric flask and diluting to the mark : solution with a pipet to a second 500.0 mL volumetric flask and diluting to the mark. Find the concentration of Ag+ in the dilute solution.

User Account

All Pages