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  1. add 5 zeroes to the right side of the number. 1000 (km/m) x 100 ( cm /m) = 100,000 ( cm /km). five zeroes.  follow the units.

    6 Answers · Science & Mathematics · 01/07/2020

  2. Considering atoms lined up side to side number of atoms in the thickness = (4 x 10⁻³ mm)/(2.9 x 10⁻⁷ mm) = 13793 atoms

    1 Answers · Science & Mathematics · 14/09/2020

  3. moles ethanol = 1.50 g / 46.07 g/mol = 0.03256 mol PV = n RT P = nRT/V P = 0.03256 mol (0.08206 Latm/molK) (523 K) / 0.251 L P = 5.56 atm If you need pressure in a different unit, just use the R that...

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

  4. Exact question: https://answers.yahoo.com/question/index?qid=20200522022256AA4g9c5

    3 Answers · Science & Mathematics · 22/05/2020

  5. ... problem I did.  a) circumference of 1 st balloon,C1 = 23.5 cm 2*(pi)*R1 = 22.5 R1 = 22.5 / 2*(pi) = 22.5 / 2*3.14 = 22.5 / 6.28...

    2 Answers · Science & Mathematics · 23/08/2020

  6. ... problem with the previous answer is in the conversion of the wavelength from cm to m. 1.78X10^-4 cm = 1.78X10^-6 m So, the energy of a...

    2 Answers · Science & Mathematics · 25/06/2020

  7. (a) n = PV / RT = (101 kPa) x (1.000 L) / ((8.3144626 L kPa/K mol) x (40 + 273) K) = 0.0388 mol O2 (b) (40 + 273)K x (1500 cm ^3 / 1000 cm ^3) x (1.06 / 1.01) = 492.74 K = 220°C

    1 Answers · Science & Mathematics · 25/06/2020

  8. (349 cm ^3) x (2.02 atm / 0.958 atm) x (23 + 273) K / (31.1 + 273) K = 716 cm ^3

    3 Answers · Science & Mathematics · 18/04/2020

  9. (500 mL) x (1.65 g/ cm ^3) = 825 g solution (825 g total) - (125 g HCl) = 700 g H2O (125 g...

    2 Answers · Science & Mathematics · 21/04/2020

  10. A) (160.5*10^-9 g) / ((13.3 cm ^3)*(1.00 g/ cm ^3)) = 12.067*10 ^-9 .. = 12.07 ppb B) (0.650 km^3)*((10^4 dm)/km)^3*(1 kg/dm^3)*(12.07*10^-9)= 7850 kg C) = (7,850 kg)*(2.61 days)/(42.6 kg) = 480 days or = 1.32 years

    1 Answers · Science & Mathematics · 01/10/2019

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