Chemistry

Would the R (PV=nRT)value go up or down if you had not corrected the gas for partial pressure of water? I was thinking down but im not sure

  1. 👍
  2. 👎
  3. 👁
  1. Why would R change at all. Isn't R a constant? You may be talking about something performed in the lab; if so you must give some indication of what you did and what you are trying to determine.

    1. 👍
    2. 👎
  2. we collected butane gas using a funnel and graduated cylinder under water. then we had to determine the experimental R value and compare it to the constant

    1. 👍
    2. 👎
  3. Based on what you told me (I've not performed this experiment),
    PV = nRT so
    R = (PV)/nT
    If you did not correct the pressure you read for the room for the vapor pressure of water (don't you usually subtract the vapor pressure of water to obtain the partial pressure of the dry gas?), then you are placing too high a value for P and R will be higher accordingly.

    1. 👍
    2. 👎
  4. What do you mean by correcting the pressure?

    1. 👍
    2. 👎

Respond to this Question

First Name

Your Response

Similar Questions

  1. calculus help thanks!

    The gas law for an ideal gas at absolute temperature T (in kelvins), pressure P (in atmospheres), and volume V (in liters) is PV = nRT, where n is the number of moles of the gas and R = 0.0821 is the gas constant. Suppose that, at

  2. Chemistry

    Nitrogen & hydrogen goes react to form ammonia gas as follows: N2(g)+3H2(g)-->2NH3(g) At a certain temperature & pressure, 1.2L of N2 reacts with 3.6L of H2. If all the N2 and H2 are consumed, what volume of NH3, at the same

  3. Algebra

    In chemistry, n molecules of an ideal gas have pressure (P), volume (V), and temperature (T) that stand in the following relation, where R is a constant. PV = nRT If you solve for n what would be a good equation? I came up with

  4. Chemistry - please help!

    The decomposition of KClO3 produces oxygen gas and solid KCl. What mass of KClO3 must be decomposed to produce 126 L of oxygen gas at 133 Celsius and .88 atm? I know I need to use PV=nRT but I can't figure out how.

  1. chemistry

    can anyone help with this problem please..... Potassium chlorate decomposes according to the following equation: 2KClO3 (s) → 2KCl (s) + 3O2 (g). If a 3.00 g sample of KClO3 is decomposed and the oxygen is collected at 24.0 °C

  2. (1-13) Chemistry - Science

    Which of the following effects will make the ratio (PV) / (nRT) less than 1 for a real gas? a) The gas molecules are large enough to occupy a substantial amount of space. b) A large number of molecules have speeds greater than the

  3. Chemistry

    Consider the following reaction: 2NiO (s)--> 2Ni(s) + 2O2 (g) If O2 is collected over water at 40.0 C and a total pressure of 752 mmHg, what volume of gas will be collected for the complete reaction of 25.67 g of NiO? I am

  4. Chemistry

    If 3.21 mol of a gas occupies 56.2 L at 44*C and 793 torr, 5.29 mol of this gas occupies __________ L under these conditions. . -How will I solve this using PV= nRT? I tried using PV= nRT. By just plugging in the value and got 131

  1. Chemisty

    Calculate the Volume occupied by 1.5 moles of an ideal gas at 25 degrees Celsius and a pressure of 0.80 atm. (R= 0.08206 L atm/(mol*K). I've tried using the ideal gas law: PV=nRT but i can't seem to get where I am getting lost.

  2. Chemistry

    A spherical glass container of unknown volume contains helium gas at 25C and 1.960 atm. When a portion of the helium is withdrawn and adjusted to 1.00 atm at 25C, it is found to have a volume of 1.75 cm^3. The fas remaining in the

  3. Chemistry

    A 3.80 L cylinder contains 6.83g of methane, CH4, at a pressure of 3320 mmHg. What is the temperature of the gas? I know you use the formula PV= nRT, but I can't seem to get two sides equal each other, thus having the wrong temp.

  4. Chemistry

    Calculate the pressure that ccl4 will exert at 40 of 1.00 mol occupies 28.0 L, assuming that (a) CCl4 obeys the ideal-gas equation (b) CCl4 obeys the Van der Waals equation. (a) PV = nRT P = nRT / V (b) (P + n^2a/V^2)(V - nb) =

You can view more similar questions or ask a new question.