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1. ### Chemistry problem (Mastering Chemistry) I have no idea how to do this one.?

...half, the pressures will double. Q = (0.92 atm) / (0.68 atm)² = 1.99 Since Q is less than K, the system will shift to the right...

2 Answers · Science & Mathematics · 08/04/2018

2. ### Chemistry Help?

.../mol) x (47.9037 mol) = 1953992 J = 1953.992 kJ to vaporize the water (1.99 J/g·°C) x (863 g) x (123 - 100)°C = 39500 J = 39.500...

2 Answers · Science & Mathematics · 19/12/2017

3. ### Chemistry help?!! ASAP?

...s Note: In the part under the radical sign, if you put in [(kg • m²) / s²] for J and do the division and the square root operation, the units of the result are m/s . ----- 2) w = - PΔ...

1 Answers · Science & Mathematics · 15/11/2016

4. ### Calculate the freezing point and boiling point of a solution containing 8.30g of ethylene glycol (C2H6O2) in 89.2mL of ethanol.?

...0.07038 kg ethanol = 1.90 m Freezing point depression ..... i = 1 since it does not ionize ΔT = (i)(Kf)(m) ΔT = 1.99...

2 Answers · Science & Mathematics · 25/10/2014

5. ### A solution is prepared by dissolving 5.00 g of glycerin (C3H8O3) in 201 g of ethanol C2H5OH. The freezing point of the solution is __ deg. C?

...molality = 0.270m The van't Hoff factor, i, is 1 since glycerin does not ionize in ethanol, and the freezing point constant for ethanol is 1.99...

1 Answers · Science & Mathematics · 06/06/2014

6. ### Significant figures?

...and not 20000.) only has one significant figure, this means we have no way of know say what that +200 or -200 will do. Would it make it 30000? Would it remain 20000? Would it possibly drop below 20000? We have no idea...

3 Answers · Science & Mathematics · 28/05/2014

7. ### How do I determine the pressure of a gas at a certain temperature?

... (V) must be in litres, amount (n) must be in moles, Temperature (T) must be in Kelvin, and your answer (P) will be in atm. (There are ways to do it in other measures of pressure, but I find atm to be the easiest.) P=? V=0.144 Litres (originally 144 cm^3) n=0.01178 moles (originally 0.33 g) notice that nitrogen is diatomic, ...

2 Answers · Science & Mathematics · 22/03/2014

8. ### transition metals questions?

... by Avogradro's Number: 0.3306 * 6.022*10²³ = 1.99*10²³ 2. See Crystal and Ligand Field...

1 Answers · Science & Mathematics · 02/03/2014

9. ### How can amu be "also equal" to 1 g/mol?

"1 mole of carbon atoms would weigh: 1.99 × 10^-23 * Avogadro number = 0.9997 or 9.997 * 10^-1 grams...

1 Answers · Science & Mathematics · 23/02/2014

10. ### Can anyone help with quantitative analysis homework?

... used in some specialties. 2. The second thing that might occur is:"Does that mean 1 part in a total of X parts (where the X is hundred, thousand, million, etc.) or 1...

2 Answers · Science & Mathematics · 04/02/2014