The natural seed spread for purple loosestrife is through water or animals.
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The molality of a 0.677 m ethanol ( c 2 h 5 o h ) solution whose density is 0.588 g/ml.
What is molality and molarity?
The number of solvent moles per kilogram is known as molality. Because the mass of the solute and solvent in the solution remains constant, molality is the preferred concentration transfer method.
Molarity, also referred to as molar concentration, is the quantity of a material expressed as moles per litre of solution. Solutions marked with a molar concentration have a capital M. One mole of solvent per litre is present in a 1.0 M solution.
Molar mass (w) of C2H5OH = 46g
Molarity(M) = 0.677M
Density(D) = 0.588g/mol
<u>Molality(m)</u><u> = M/D * (1000 + w*M)</u>
<u>= 1187.2m</u>
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The best answer here is B , i.e. the components of a homogenous mixture are evenly distributed
This means the constituents are mixed uniformly.
In a heterogeneous mixture, the constituents are not mixed uniformly.
Some good examples of a homogeneous mixture are:
1. Sugar solution
2. Soda
3. Water
5. soft drinks
6. Air
7. Vinegar
8. Brine
Some examples of a heterogeneous mixture are:
1. Blood
2. Milk
3.Water and oil
4. Water and sand
5. Soil
6. Hollandaise sauce
8. smog
Answer: 0.4533mol/L
Explanation:
Molar Mass of CaCO3 = 40+12+(16x3) = 40+12+48 = 100g/mol
68g of CaCO3 dissolves in 1.5L of solution.
Xg of CaCO3 will dissolve in 1L i.e
Xg of CaCO3 = 68/1.5 = 45.33g/L
Molarity = Mass conc.(g/L) / molar Mass
Molarity = 45.33/100 = 0.4533mol/L
