Answer:
Density = 1000 g/l
= 1.00 kg/l.
Molality = 0.037 mol/g
= 37 mol/kg.
Explanation:
Molar concentration of nitric acid = 15.9 M.
Mass of water in 100 g = 100 - 70
= 30 g
Mass of nitric acid = 70 g
Molar mass of HNO3 = 1 + 14 + (16*3)
= 63 g/mol
Number of moles = mass/molar mass
= 70/63
= 1.11 mol.
Molar concentration = number of moles/volume
Volume = 1.11/15.9
= 0.07 l
Density = mass/volume
Density =
= 70 * 0.07
= 1000 g/l
= 1.00 kg/l
Molality = number of moles of nitric acid/mass of solvent(water)
= 1.11/0.030
= 37 mol/kg
Sucrose and other simple sugars may dissolve in water because they are polar molecules with an unequal charge distribution. Water is also quite polar, capable of forming weak, temporary connections with other polar compounds.
Salt dissolves into ions, with Na being positively charged and CL being negatively charged. Because water is highly polar (parts of the molecule are negatively charged while others are positively charged), the sodium ions are surrounded by water molecules, with the negatively charged component of the water molecules surrounding the NA ion. The Cl ion experiences the inverse effect.
<h3>
How does salt dissolve in water compared to sugar?</h3>
A solution's solute and solvent are two different types of substances that can dissolve one another. Different solvents have different levels of solubility for different solutes. For instance, sugar is far more soluble in water than salt. Even sugar, though, has a limit on how much may dissolve.
learn more about solubility refer:
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Proteins are made of carbon, hydrogen,oxygen, and nitrogen (CHON). Nucleic acids such as DNA and RNA contain carbon,hydrogen, oxygen, nitrogen, and phosphorus(CHON P). The body also needs trace amounts of other elements such as calcium,potassium, and sulfur for proper functioning of muscles, nerves, etc.
Answer:
Explanation:
N-n : 167 (energy) 145 (length)
N=n : 418 (energy) 125(length)
N (three lines)n : 942 (energy) (110) length
(not sure if I’m too late but I asked my teacher and she looked at the answer sheet so it’s correct )
Answer:
you can identify the properties of an element by studying its_____ on the ... between metals and nonmetals on the periodic table are the _____ which have ...
Explanation: