Answer:-
241.66 mL
Explanation:-
Volume of HCl = 145 mL / 1000 = 0.145 L
Strength of HCl = 0.25 M
Number of moles of HCl = Strength x volume
= 0.25 M x 0.145 L
= 0.03625 moles
According to the balanced chemical equation
NaOH(aq) + HCl(aq) → H 2 O(l) + NaCl(aq)
1 mol of HCl reacts with 1 mol of NaOH.
∴0.03625 moles of HCl reacts with 0.03625 moles of NaOH.
Strength of NaOH = 0.15 M
Volume of NaOH = Number of moles / strength
= 0.03625 moles / 0.15 M
= 0.24166 L x 1000
= 241.66 mL
Answer:
Are the organism we cant see with our bare eyes. We only see them with the help of a microscope
Explanation:
Answer:
Matter cannot be created or destroyed in chemical reactions. This is the law of conservation of mass. In every chemical reaction, the same mass of matter must end up in the products as started in the reactants. Balanced chemical equations show that mass is conserved in chemical reactions.
Explanation:
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Answer:The energies of infrared photons are in the same range as the energies associated with different vibrational states of chemical bonds. Molecules can absorb infrared photons of characteristic wavelengths, thus revealing the types and strengths of different bonds in the molecules.
Explanation:
Infrared spectroscopy measures the vibrational energy levels in a molecule. When a molecule absorbs Infrared photons, the chemical bonds vibrate at different frequency. An analysis of the changes in vibrational energy within a molecule can be used to ascertain the different kinds of bond and hence the overall structure of the molecule. The vibrational modes of a molecule includes; bending, stretching and scissoring.
George washington was born on february 22,1732