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1. osmotic pressure of a solution?

Supposing the sucrose does not hydrolyze: (25.7 g C12H22O11) / (342.2965 g C12H22O11/mol) / (1 L) x (0.082057366 L atm/K mol) x (20 + 273) K = 1.81 atm

1 Answers · Science & Mathematics · 27/05/2020

2. A gas at 150 kPa and 35.0°C occupies a volume of 6.85 L. Calculate its volume at STP. ?

... (150 kPa x  1 atm / 101.325 kPa))(6.85 L) / (35.0°C + 273.15)K = (1 atm)V₂/(273.15 k) V₂ = (150 kPa x 1 atm / 101.325 ...

1 Answers · Science & Mathematics · 28/05/2020

3. Find solubility in oxygen?

henry's law states that .. c(O2) = kH * P(O2) where .. c(O2) = concentration of...1).. c(O2) = 0.00130 M/atm * 0.210 * 1.00atm = ___ M .. (2).. c(O2) = 0.00130 M/atm * 0.210 * 0.894atm = ___ M .. (3).. 4.80L...

2 Answers · Science & Mathematics · 11/05/2020

4. What will its new pressure be?

P1 / T1 = P2 / T2.  Substitute and solve for P2.  Remember to convert deg C to K for gas problems.  About 0.47 atm.

2 Answers · Science & Mathematics · 30/04/2020

5. A helium-filled weather balloon has a volume of 767 L at 17.9°C and 752 mmHg. ?

(767 L) x (–29.1 + 273) K / (17.9 + 273) K x (752 mmHg / 337 mmHg) = 1435 L

1 Answers · Science & Mathematics · 24/04/2020

...1.10 atm) x (0.0100 L) / ((0.082057366 L atm/K mol) x (288.5 K)) = 4.647 × 10^-4 mol (0.04411 g) / (4.647 × 10^-4 mol) = 94.921 g/mol (25.305% of 94.921 g/mol) / (12.01078 g C/mol) = 1.9999 (74.695% of 94.921 g/mol) / (35.4532 g Cl/mol) = 1.9999 ...

2 Answers · Science & Mathematics · 23/04/2020

7. What would be the equilibrium constant equation for the following reaction? 2NaOH(aq) <=> Mg(OH)2(s) + 2NaCl(aq)?

e. none of the above

1 Answers · Science & Mathematics · 24/04/2020

8. calculate moles and mass percentage? ?

... = (1.124 atm - 0.373 atm) x (2.00 L) / ((0.082057366 L atm/K mol) x (30 + 273) K) = 0.0604101 mol CO2 reacted 2. Let...

1 Answers · Science & Mathematics · 22/04/2020

9. mass of MnO2?

...n RT (705/760) (0.195 L) = n (0.08206 Latm/molK)(298 K) n = 7.40X10^-3 mol Cl2 7.40X10^-3 mol Cl2 ...

1 Answers · Science & Mathematics · 22/04/2020

(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