Answer:
i think its B hope this helps :3
Explanation:
Answer:
Because the amount of water must be measured with precision.
Explanation:
Hello!
Adiabatic calorimeters are used to measure the amount of heat absorbed or transferred during a chemical reaction.
When using the calorimeter, the reagent masses must be accurately measured to avoid errors in the calculations.
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Answer:
0.1
Explanation:
The retention factor is the ratio of distance traveled by sample to distance traveled by solvent. Its values range between 0-1. Zero means that the solvent is too nonpolar and its polarity must be reduced. An Rf of 1 means that the solvent is too polar and its polarity must be decreased. Two substances must differ in Rf at least by 0.1 to be effectively separated by chromatography.
Answer and Explanation:
Positive ions.
They lose the electron and become positive.
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Answer:
27.99 dm³
Explanation:
Applying
PV = nRT................ Equation 1
Where P = Pressure, V = Volume, n = number of mole, R = molar gas constant, T = Temperature.
From the question, we were aksed to find V.
Therefore we make V the subject of the equation
V = nRT/P................ Equation 2
Given: n = 1.31 moles, T = 37°C = 310K, P = 904 mmHg = (904×0.001316) = 1.1897 atm
Constant: R = 0.082 atm.dm³/K.mol
Substitute these values into equation 2
V = (1.31×310×0.082)/(1.1897)
V = 27.99 dm³