Answer:
26.6 g of CaCl₂ are required to make a 4M solution
Explanation:
4 M = Molarity of the solution
This is a type of concentratrion for solutions, that indicates the moles of solute in 1L of solution.
Solution's volume = 60 mL
We need to convert the volume from mL to L → 60 mL . 1L / 1000mL = 0.060L
Molarity = mol / volume (L) → Molarity . volume (L) = mol
4 M . 0.060L = 0.24 mol of solute
Let's convert the moles to mass → Molar mass CaCl₂
0.24 mol . 110.98 g / 1mol = 26.6 g
Answer:)The ratio of carbon to hydrogen to oxygen in carbohydrate molecules is 1:2:1. The component carbon (C, carbo-) and the component water (H20, -hydrate) give the name to this group of organic molecules. ... Monosaccharides and disaccharides are also called simple carbohydrates, and are generally referred to as sugars.
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Answer:
0 to n − 1
Explanation:
The angular or orbital quantum number, gives a description of the particular subshell or orbital where the electron is found and gives the magnitude of its orbital angular momentum.
The values of the angular momentum quantum number (ℓ) takes on integer values that ranges from 0 to n − 1
Scientific questions and hypotheses come up frequently while one is engaged in investigating a scientific phenomenon such as natural geological phenomena as may occur in geological mapping in the field. For example, there may be a question does this canyon or deeply incised valley which is quite straight follow a weakness in the earth's crust like a major fault or the direction of bedding in well bedded sedimentary rocks. In a particular topographic area, some hypotheses which may be developed is that valleys follow geological structure whereas ridges follow resistant rocks like quartzites or quartz sandstones or in the ocean, points or capes may represent resistant quartz sandstones and bays may represent weak soft shales recessively weathering
The ice will require two forms of heat: latent to melt and sensible to be heated to 50 °C.
Q(ice) = ml + mCpΔT
= 150 x 333 + 150 x 4.18 x 50
= 85950 Joules
The mass of steam must release this much energy in two forms: latent to fuse into water and then sensible to cool to 50 °C.
85950 = m(2256) + 4.18 x 50 x m
m = 34.9 grams of steam.