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1. ### Chem Arrhenius Equation--WILL GIVE BEST ANSWER?

... 1/T₂ = 3.2301 × 10⁻³ New temperature, T₂ = 310 K = 37°C ==== B. When T₁ = 273 + 25 = 298 K, k₁ = 0.0120...

2 Answers · Science & Mathematics · 13/02/2020

2. ### A balloon rubbed against denim gains a charge of −6.0 µC.?

...and also you should have used the given value of k in the question (8.98755 × 10^9 ·m² /C²) (even....  The charge on the balloon (q1) is = -6 μC so the charge on the denim (q2) = +6 μC. F = kq1q2...

1 Answers · Science & Mathematics · 09/02/2020

3. ### A 0.0125 g sample of gas with an empirical formula of CHF2 is placed in a 165 mL flask. It has a pressure of 13.7 mm Hg at 22.5 C.?

... / 760 mmHg/atm) (0.165 L) = (n) (0.08206 L atm / mol K) (295.5 K n = 0.00012266 mol Divide mass by moles to get molar...

3 Answers · Science & Mathematics · 08/02/2020

4. ### What is the capacitance of two metal plates each of area 0.96 m^2 and separated by 0.5 mm using aluminum oxide as the material?

C = k*e*A/d, where C = capacitance in Farads k = relative permittivity e... relative permittivity of 99.5% Alumina is 9.8. So: C = 9.8 * 8.854e-12 * 0.96/0.0005 C = 1.666e-7 F = 166.6 nF

1 Answers · Science & Mathematics · 08/02/2020

5. ### A steel cylinder holds 1.50 g of ethanol. What is the pressure of the ethanol vapor if the cylinder has a volume of 251 cm^3 ?

.../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...

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

6. ### Define STP for gases. A 5.0 mL sample of CH4 gas at 1 atm is enclosed in a gas tight syringe at 22 C. ?

Since 1982 the definition of STP has been 273.15 K and exactly 10^5 Pa. (5.0 mL) x (100 kPa / 101.325 kPa) x (273.15 K / (273.15 + 22)K) = 4.5668 mL = 4.6 mL

1 Answers · Science & Mathematics · 08/02/2020

7. ### Physics 2 question?

... given by Vₑ = kQ/r, where k is the Coulomb constant: 8.99 × 10⁹... N·m²/C²)(3.00 × 10ˉ⁹ C) / (4.47 × 10ˉ² m) = 6.03 × 10² N·m...

2 Answers · Science & Mathematics · 07/02/2020

8. ### What is the electric potential 14.0 cm from a 3.00 μC point charge?

V = k(3µ)/0.14 = 193000 volts Potential from a charge is V = kQ/r in volts    k = 1/4πε₀ = 8.99e9 Nm²/C²    r is separation in ...

1 Answers · Science & Mathematics · 09/02/2020

9. ### #8a. The information below and the next 4 problems apply to one complete problem which is broken up into parts as discussed in the class.?

... - true  C - true  D - false  so in your format,  B, C  8d. dE = k*λ*z*dx / (z²+x²)^1.5  E = k*λ*z*∫ dx / (z²+...

1 Answers · Science & Mathematics · 08/02/2020

10. ### Calculate the moles of vapor present as well as the molar mass of the vapor using the Ideal Gas Law?

...752.2 / 760 = 0.9897 atm V = 0.2159 L T = 100 + 273.15 = 373.15 K n = PV/RT n = 0.9897 atm (0.2159 L)/ 0.08206 Latm/...

2 Answers · Science & Mathematics · 08/02/2020