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  1. Both acids are strong, so the concentration of H+ ions will be the same as the concentration of the acid(s). Supposing additive volumes: ((4.526 L x 0.3521 M) + (5.275 L x 1.563 M)) / (4.526 L + 5.275 L) = 1.004 M

    1 Answers · Science & Mathematics · 19/07/2019

  2. No, they do not have the same conductivity. The reason is that KI is a strong electrolyte, i.e. it ionizes completely. However HF is a weak electrolyte, i.e. it ionizes only partially.

    2 Answers · Science & Mathematics · 25/09/2019

  3. the molar mass of methane (CH4) is 16 g. (C=12 and H=1). So, 1.6 g of methane is 0.1 mole of methane. How many electrons in CH4? C has 6 and each H has 1, so each molecule of CH4 has 10...

    2 Answers · Science & Mathematics · 17/07/2019

  4. Limiting reactant problem Compute the amount of product using each reactant. The theoretical yield will be the smaller of the two, and give the limiting reactant. 2Na(s) + 2HOH(l) --> 2NaOH(aq) + H2(g) 2.0g ....... 10.0g...

    1 Answers · Science & Mathematics · 09/07/2019

  5. Assume you have 100g of the substance so that all the percentages become grams  Take the grams of each substance and divide by its molar mass (i.e. 12.01 for carbon) From the results, divide each of them by the smallest answer...

    2 Answers · Science & Mathematics · 10/02/2020

  6. The energy of the n=1 level is -13.6 eV relative to the electron being at infinity. So the required energy (ionization energy) is 13.6 eV.

    3 Answers · Science & Mathematics · 01/06/2019

  7. The # of protons is the difference between atoms of different elements at the same temkoperature. Different isotopes of the same elements t have the same # of protons, but different numbers of neutrons...

    3 Answers · Science & Mathematics · 09/05/2019

  8. How many moles .... 143 mol C3H8 x (8 mol H / 1 mol C3H8) = 1144 mol H

    2 Answers · Science & Mathematics · 16/05/2019

  9. Prior to quantum mechanics we thought of the electron as orbiting in circles around a nucleus. The orbital speed could be calculated from kQq/ r^2 = m v^2/r But there were problems with this model. It would certainly...

    3 Answers · Science & Mathematics · 28/05/2019

  10. a milliliter is also one cubic cm. You have 1000 of those units. Multiply the density by 1000 to get the mass.

    2 Answers · Science & Mathematics · 29/06/2019

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