The molar concentration of the solution is calculated as follows
find the moles of NaCl used to make the solution
moles = mass/molar mass
mass =7.83 g
molar mass =58.5 g/mol
moles = 7.83 g/ 58.5 g/mol = 0.134 moles
molarity ( concentration in mol/l) = number of moles/volume in liters
volume in liters = 90ml/1000 =0.09 liters
molarity is therefore = 0.134 moles/0.09 L =1.49 M
The barometer would show a decrease in wind speed resulting in the disipation of cloud cover because of the lack of wind, and also because the temperature is dropping there is less precipation because there is no hot air rising to create clouds :)
Answer:
Hydrogen bonding.
Explanation:
Ammonium lauryl sulfate is also known as ammonium dodecyl sulfate there are two parts in Ammonium lauryl sulfate one is nonpolar hydrocarbon and other part polar sulfate group.
Due to polarity of sulfate group its form hydrogen bond very easily.
It is mainly used as foaming agent the main reason of its use is very much soluble in water and making hydrogen bond with water.
Answer:- and CsOH .
Explanations:- and CsOH have and so when dissolved in water, they give and hence they are bases.
and HI gives when dissolved in water and so these are acids.
The equations are shown as below:
Answer:
Explanation: SDS coated polypeptide separate in a gel when placed in an electric field, because SDS coated proteins are negatively charged while the electric field is politely charged. this will cause the proteins to move. the proteins that will move farthest is the smaller ones because it is easier to migrate through the gel.