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preface to fifteenth edition

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GENERAL INFORMATION, CONVERSION TABLES, AND MATHEMATICS 2.91<br />

TABLE 2.19 Fac<strong>to</strong>rs for Reducing Gas Volumes <strong>to</strong> Normal (Standard) Temperature and Pressure (760<br />

mmHg)<br />

Examples: (a) 20 mL of dry gas at 22C and 730 mm 20 0.8888 17.78 mL at 0C and 760 mm. (b) 20<br />

mL of a gas over water at 22 and 730 mm 20 (fac<strong>to</strong>r corrected for aqueous tension; i.e., 730 19.8 or<br />

710.2 mm) 20 mL of dry gas at 22 and 710.2 mm 20 0.86475 17.30 mL at 0C and 760 mm. Mass<br />

in milligrams of 1 mL of gas at S.T.P.: acetylene, 1.173; carbon dioxide, 1.9769; hydrogen, 0.0899; nitric oxide<br />

(NO), 1.3402; nitrogen, 1.25057; oxygen, 1.42904.<br />

Pressure<br />

mm of<br />

mercury<br />

Temperature C<br />

10 11 12 13 14 15 16 17<br />

670 0.8504 0.8474 0.8445 0.8415 0.8386 0.8357 0.8328 0.8299<br />

672 0.8530 0.8500 0.8470 0.8440 0.8411 0.8382 0.8353 0.8324<br />

674 0.8555 0.8525 0.8495 0.8465 0.8436 0.8407 0.8377 0.8349<br />

676 0.8580 0.8550 0.8520 0.8490 0.8461 0.8431 0.8402 0.8373<br />

678 0.8606 0.8576 0.8545 0.8516 0.8486 0.8456 0.8427 0.8398<br />

680 0.8631 0.8601 0.8571 0.8541 0.8511 0.8481 0.8452 0.8423<br />

682 0.8657 0.8626 0.8596 0.8566 0.8536 0.8506 0.8477 0.8448<br />

684 0.8682 0.8651 0.8621 0.8591 0.8561 0.8531 0.8502 0.8472<br />

686 0.8707 0.8677 0.8646 0.8616 0.8586 0.8556 0.8527 0.8497<br />

688 0.8733 0.8702 0.8672 0.8641 0.8611 0.8581 0.8551 0.8522<br />

690 0.8758 0.8727 0.8697 0.8666 0.8636 0.8606 0.8576 0.8547<br />

692 0.8784 0.8753 0.8722 0.8691 0.8661 0.8631 0.8601 0.8572<br />

694 0.8809 0.8778 0.8747 0.8717 0.8686 0.8656 0.8626 0.8596<br />

696 0.8834 0.8803 0.8772 0.8742 0.8711 0.8681 0.8651 0.8621<br />

698 0.8860 0.8828 0.8798 0.8767 0.8736 0.8706 0.8676 0.8646<br />

700 0.8885 0.8854 0.8823 0.8792 0.8761 0.8731 0.8700 0.8671<br />

702 0.8910 0.8879 0.8848 0.8817 0.8786 0.8756 0.8725 0.8695<br />

704 0.8936 0.8904 0.8873 0.8842 0.8811 0.8781 0.8750 0.8720<br />

706 0.8961 0.8930 0.8898 0.8867 0.8836 0.8806 0.8775 0.8745<br />

708 0.8987 0.8955 0.8924 0.8892 0.8861 0.8831 0.8800 0.8770<br />

710 0.9012 0.8980 0.8949 0.8917 0.8886 0.8856 0.8825 0.8794<br />

712 0.9037 0.9006 0.8974 0.8943 0.8911 0.8880 0.8850 0.8819<br />

714 0.9063 0.9031 0.8999 0.8968 0.8936 0.8905 0.8875 0.8844<br />

716 0.9088 0.9056 0.9024 0.8993 0.8961 0.8930 0.8899 0.8869<br />

718 0.9114 0.9081 0.9050 0.9018 0.8987 0.8955 0.8924 0.8894<br />

720 0.9139 0.9107 0.9075 0.9043 0.9012 0.8980 0.8949 0.8918<br />

722 0.9164 0.9132 0.9100 0.9068 0.9037 0.9005 0.8974 0.8943<br />

724 0.9190 0.9157 0.9125 0.9093 0.9062 0.9030 0.8999 0.8968<br />

726 0.9215 0.9183 0.9151 0.9118 0.9087 0.9055 0.9024 0.8993<br />

728 0.9241 0.9208 0.9176 0.9144 0.9112 0.9080 0.9049 0.9017<br />

730 0.9266 0.9233 0.9201 0.9169 0.9137 0.9105 0.9073 0.9042<br />

732 0.9291 0.9259 0.9226 0.9194 0.9162 0.9130 0.9098 0.9067<br />

734 0.9317 0.9284 0.9251 0.9219 0.9187 0.9155 0.9123 0.9092<br />

736 0.9342 0.9309 0.9277 0.9244 0.9212 0.9180 0.9148 0.9117<br />

738 0.9368 0.9334 0.9302 0.9269 0.9237 0.9205 0.9173 0.9141<br />

740 0.9393 0.9360 0.9327 0.9294 0.9262 0.9230 0.9198 0.9166<br />

742 0.9418 0.9385 0.9352 0.9319 0.9287 0.9255 0.9223 0.9191<br />

744 0.9444 0.9410 0.9377 0.9345 0.9312 0.9280 0.9248 0.9216<br />

746 0.9469 0.9436 0.9403 0.9370 0.9337 0.9305 0.9272 0.9240<br />

748 0.9494 0.9461 0.9428 0.9395 0.9362 0.9329 0.9297 0.9265

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