Chemistry

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The amount of energy involved in melting a substance without changing its temperature is called the ... Started by newyorker26	3 Replies 59 Views	Aug 27, 2018 by dajones82
A gas occupies a volume of 480 mL at 127 C and 140 mm Hg. What mathematical expression will yield ... Started by shenderson6	1 Replies 48 Views	Aug 27, 2018 by peilian
A gas occupies a volume of 0.500 L at 125 C and 0.443 atm. What mathematical expression will yield ... Started by danielfitts88	1 Replies 71 Views	Aug 27, 2018 by bimper21
STP conditions stand for ________. A) 0 K, 1 atm B) 0 C, 760 cm Hg C) 0 C, 760 mm Hg D) 0 K, ... Started by jhjkgdfhk	1 Replies 37 Views	Aug 27, 2018 by bulacsom
A gas occupies 2.00 L at 298 K and 2.10 atm. The volume of this gas at STP is ________. A) 22.4 L ... Started by michelleunicorn	3 Replies 75 Views	Aug 27, 2018 by jonathanballen97
In a molecule having four pairs of electrons around the center atom and a bent shape, how many ... Started by tsand2	1 Replies 84 Views	Aug 27, 2018 by morrie123456
In a molecule having three pairs of electrons around a central atom and a trigonal planar shape, how ... Started by rlane42	1 Replies 71 Views	Aug 27, 2018 by stanleka1
What weight of nitrogen gas will occupy a volume of 1.25 L at a pressure of 1.0 atm and a ... Started by natalie2426	1 Replies 95 Views	Aug 27, 2018 by BAOCHAU2803
Which of the following statements is correct about the bent structure? A) The bent structure has ... Started by kaid0807	3 Replies 147 Views	Aug 27, 2018 by missalyssa26
Which of the following molecules is not linear? A) hydrogen cyanide B) beryllium chloride C) ... Started by mydiamond	1 Replies 63 Views	Aug 27, 2018 by chem1s3
Which of the following molecules is linear? A) hydrogen chloride B) ethane, C2H6 C) ethene, ... Started by Redwolflake15	1 Replies 64 Views	Aug 27, 2018 by memslove
An unknown gaseous substance has a density of 1.06 g/L at 31 C and 371 torr. If the substance has ... Started by jessicacav	1 Replies 184 Views	Aug 27, 2018 by sailorcrescent
The density of hydrogen gas at STP is ________ the density of oxygen under identical conditions. ... Started by go.lag	3 Replies 150 Views	Aug 27, 2018 by Pswine
Which of the following molecules is bent? A) water B) sulfur dioxide C) carbon dioxide D) both ... Started by james0929	1 Replies 84 Views	Aug 27, 2018 by yuyiding
0.123 g of a gas occupy a volume of 124 mL at 120. C and 760. torr. The possible formula of the gas ... Started by renzo156	1 Replies 348 Views	Aug 27, 2018 by Liamb2179
The molar volume of an ideal gas is ________. A) always equal to 22.4 L at room temperature B) ... Started by Kthamas	1 Replies 95 Views	Aug 27, 2018 by Galvarado142
Which gas has a density equal to 1.43 g/L at STP? A) nitrogen B) oxygen C) helium D) carbon ... Started by nramada	3 Replies 82 Views	Aug 27, 2018 by asware1
The density of carbon tetrachloride at 0.94 atm and 398 K is ________. A) 1.11 g/L B) 2.21 g/L ... Started by SAVANNAHHOOPER23	1 Replies 89 Views	Aug 27, 2018 by jlaineee
The angle around carbon in hydrogen cyanide is ________. A) 105 B) 109.5 C) 120 D) ... Started by lbcchick	1 Replies 71 Views	Aug 27, 2018 by peilian
The density of sulfur vapor at 1273 K and 740 mm Hg is 0.5977 g/L. Sulfur at that temperature will ... Started by LaDunn	1 Replies 46 Views	Aug 27, 2018 by Kdiggy
Find the number of liters occupied by 3.0 moles of nitrogen gas at STP. A) 67 L B) 7.5 L C) 4.8 ... Started by mikaylakyoung	3 Replies 86 Views	Aug 27, 2018 by ryhom
Find the number of liters occupied by 3.0 g of nitrogen gas at STP. A) 67 L B) 7.5 L C) 2.4 L ... Started by eruditmonkey@yahoo.com	1 Replies 64 Views	Aug 27, 2018 by helenmarkerine
Which statement is not true about an ideal gas? A) Ideal gas molecules travel in a straight line. ... Started by neverstopbelieb	1 Replies 66 Views	Aug 27, 2018 by jojobee318
The number of moles of oxygen that are present in a 15-L container at STP is ________. A) 0.1 B) ... Started by futuristic	1 Replies 43 Views	Aug 27, 2018 by janieazgirl
14.0 g of nitrogen gas will occupy ________ at STP. A) 1.12 L B) 2.24 L C) 11.2 L D) 22.4 ... Started by burton19126	3 Replies 137 Views	Aug 27, 2018 by ricroger