physics conversions check my answers

can you check my answers.

1. What is the corresponding barometric pressure values in mmHg if the barometric pressure is reported as:

29.7 inHg. = 754.38mmHg
31.8 inHg. = 807.72mmHg
26.4 inHg. = 670.56mmHg
22.1 inHg. = 561.34mmHg
34.8 inHg. = 883.92mmHg

2. What are the following equivalents:

746 mmHg = 1014.35 cmH2O.
12.4 psi = 25.22 inHg.
28 cmH2O = 20.58 mmHg.
28 cmH20 = 0.0270 atm.
0.88 atm = 668.80 mmHg.

I'm not too confident about the conversions for #2, but hopefully I did them right.


  1. 👍
  2. 👎
  3. 👁
  1. All of them are wrong, considering significant digits. One cannot take a three digit number and convert it to a more precise number. The last number 0.88atm, is two sig digits, you converted it to a precision of five digits.

    Otherwise, the numbers have been manipulated in the calculator correctly, except you believed all those digits the calculator presented.

    1. 👍
    2. 👎

Respond to this Question

First Name

Your Response

Similar Questions

  1. Chemistry

    The vapor pressures of ethanol (C2H5OH) and 1-propanol (C3H7OH) are 100 mmHg and 37.6 mmHg, respectively. Assume ideal behavior and calculate the partial pressures of ethanol and 1-propanol at 35 degrees Celsius over a solution of

  2. statistics

    Suppose that diastolic blood pressure readings of adult males have a bell-shaped distribution with a mean of 84 84 mmHg and a standard deviation of 9 9 mmHg. Using the empirical rule, what percentage of adult males have diastolic

  3. Chemistry

    Carbon monoxide at a pressure of 1490 mmHg reacts completely with O2 at a pressure of 745 mmHg in a sealed vessel to produce CO2. What is the final pressure in the flask? 2CO2 (g) + O2 (g) -> 2CO2 (g) I thought it was just a

  4. Chemistry

    1. A small piece of zinc reacts with dilute HCl to form H2, which is collected over water at 16°C into a large flask. The total pressure is adjusted to barometric pressure (752 torr), and the volume is 1538 mL. Use Table 5.2 to

  1. Science

    Hurricane Katrina, which hit the Gulf Coast of Louisiana and Mississippi on August 29, 2005, had the second lowest ever recorded barometric pressure at 920mb. Convert this pressure to units of atmospheres, and inches of Hg. 1 bar

  2. chem

    The reaction AB(aq)->A(g)+ B(g)is second order in AB and has a rate constant of 0.0282 M^{-1} s^{-1} at 25 Celsius. A reaction vessel initially contains 250 mL of 0.105 M AB which is allowed to react to form the gaseous product.

  3. CHEMISTRY- vapour pressure

    Bromobenzene, C6H5Br, and chlorobenzene, C6H5Cl, form essentially ideal solutions in all proportions. At 100°C, the equilibrium vapour pressure of bromobenzene is 137mmHg and that of chlorobenzene is 285mmHg. Calculate the

  4. Chem

    Can someone check these homework answers please? 32. The barometric pressure measured outside an airplane at 9 km was 259 mmHg. Calculate the pressure in kPa. 34.5 kPa 36. A diving bell is a container open at the bottom. As the

  1. Chem

    A dilute aqueous solution of Na2SO4 is electrolyzed between Pt electrodes for 3.70 h with a current of 2.77 A . Part A What volume of gas, saturated with water vapor at 25∘C and at a total pressure of 742 mmHg , would be

  2. Statistics

    Jim's systolic blood pressure is a random variable with a mean of 145 mmHg and a standard deviation of 20 mmHg. For Jim's age group, 140 is the cutoff for high blood pressure. If Jim's systolic blood pressure is taken at a

  3. AP Chem

    Can someone please check these problems? 34. You fill a balloon with helium gas to a volume of 2.68 L at 23 degrees C and 789 mmHg. Now you release the balloon. What would be the volume of helium if its pressure changes to 632

  4. Maths *have answer, want method* Urgent!

    Suppose that the blood pressure of the human inhabitants of a certain Pacific island is distributed with mean, \mu = 108 mmHg and standard deviation , \sigma = 6 mmHg. According to Chebyshev's Theorem, at least what percentage of

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