Answer;
2M CaCl2 because it will dissociate into 3 ions making the solute concentration and the greatest of the options
Explanation;
-Osmotic pressure is the pressure that would have to be applied to a pure solvent to prevent it from passing into a given solution by osmosis, often used to express the concentration of the solution.
-CaCl2 is going to be higher because it dissolves into 3 particles, 2 Cl's and 1 Ca, whereas others like NaCl dissolves into only Na and Cl. so the concentration of CaCl2 is going to be higher.
Answer:
11420.120569
Explanation:
i think idek of its wrong report my answe
From the calculations, the heat of the reaction is 44.4 kJ/mol.
<h3>What is the enthalpy of reaction?</h3>
The enthalpy of reaction refers to the amount of heat that is absorbed or evolved in a reaction.
Number of moles of NaOH = 1.1 g /40 g/mol = 0.0275 moles
Mass of the water = 22.1 mL or 22.1 g
Given that;
H= mcdT
H = 22.1 g *4.184 * (31.4 - 18.2)
H = 1221 J or 1.221kJ
ΔH rxn = -(1.221kJ)/0.0275 moles
ΔH rxn = 44.4 kJ/mol
Learn more about enthalpy:brainly.com/question/15319033
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Answer:
Ch4 + 2O2 ----> CO2 + 2H2O
Explanation:
Ch4 has 4H, 1C
O2 has 2 O2
CO2 has 1 C, 2O
H2O has 1 H, 2O
you need to add 2 to O2 to balance it. Add 2 to H2O to balance the H and O
Answer:
The answer to your question is: 0.373 g
Explanation:
Data
mass = ? g
atoms = 3 x 10 ²¹
AM = 74.92 g
Process
1 mol of As ------------------ 6.023 x 10²³ atoms
x ------------------ 3 x 10 ²¹ atoms
x = 4.98 x 10⁻³ moles
1 mol ------------------------ 74.92 g
4.98 x 10⁻³ moles------- x
x = (4.98 x 10⁻³ x 74.92)/1
x = 0.373 g of As