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The specific heat capacity of silver is 0.24 J/°C·g.(a) Calculate the energy required to raise the temperature of 140.0 g Ag
1. 6 answers
2. 2,561 views
A balloon filled with 22.3 mol helium has a volume of 500. L at 0.0°C and 1.00 atm pressure. The temperature of the balloon is
1. 1 answer
2. 970 views
One mole of H2O(g) at 1.00 atm and 100.°C occupies a volume of 30.6 L. When one mole of H2O(g) is condensed to one mole of
1. 6 answers
2. 4,580 views
how do I find the ÄH for C2H4 + O3 --> CH3CHO + O2?
1. 3 answers
2. 932 views
consider a mixture of air and gasoline vapor in a piston. original V is 30cm^3. if the combustion of misture releases 985J
1. 4 answers
2. 760 views
in the equation 2SO2 + O2 -> 2SO3how do you find if work done is >, <, or = to 0?
1. 1 answer
2. 796 views
a system udergoes a process consisting of the following 2 steps-1. absorbs 79J of heat while 26J of work is done to it 2. system
1. 2 answers
2. 697 views
what is the equation for calculating ÄE?here is my info- q=-39kJ, w=88kJ
1. 2 answers
2. 396 views
can you help me with the ones you helped me with last nite? lower on page one i put my results i got down for you to see if i am
1. 1 answer
2. 427 views
A 75.0 L stainless steel container was charged with 3.00 atm of hydrogen gas and 4.00 atm of oxygen gas. A spark ignited the
1. 2 answers
2. 1,016 views
A spherical glass container of unknown volume contains helium gas at 25°C and 1.950 atm. When a portion of the helium is
1. 1 answer
2. 649 views
a) Calculate the pressure exerted by 0.5160 mol N2 in a 1.0000 L container at 24.6°C using the ideal gas law.atm (b) Calculate
1. 5 answers
2. 1,020 views
A piece of solid carbon dioxide, with a mass of 6.2 g, is placed in a 4.0 L otherwise empty container at 21°C.( a) What is the
1. 2 answers
2. 2,564 views
A spherical glass container of unknown volume contains helium gas at 25°C and 1.950 atm. When a portion of the helium is
1. 5 answers
2. 1,520 views
A spherical glass container of unknown volume contains helium gas at 25°C and 1.950 atm. When a portion of the helium is
1. 4 answers
2. 830 views
Use the data in Table 5.4 to calculate the partial pressure of He in dry air assuming that the total pressure is 1.0 atm.
1. 3 answers
2. 2,387 views
given the reaction -Fe(s)+H2SO4(aq)->FeSO4(aq) + H2(g) the volume of the balloon was 4400m^3 and the loss of hydrogen gas during
1. 0 answers
2. 632 views
In 1897 the Swedish explorer Andree tried to reach the North Pole in a balloon. The balloon was filled with hydrogen gas. The
1. 5 answers
2. 1,552 views
consider separate 1Lsamples of He and UF6 both at 1 atm and containing the same number of moles. what ratio of temps for the two
1. 2 answers
2. 994 views
a 13.5L tank is filled with H2 to a pressure of 2x10^2atm. How many balloons (each 2L) can be inflated to a pressure of 1 atm
1. 1 answer
2. 1,165 views
a 2.747g sample of manganese metal is reacted with excess HCl gas to produce 3.24L of H2 at 366K and .927atm and a manganese
1. 4 answers
2. 1,375 views
using the van der Waals equation calculate the pressur exterted by .5160 mol N2 in a 1L container at 24.6C
1. 3 answers
2. 585 views
How can separate 1L samples of O2 and H2 have the same average velocity/
1. 1 answer
2. 630 views
75L stainless steel container was charged with 3 atm of hydrogen gas and 4 atm of oxygen gas. a spark ignited the misture,
1. 2 answers
2. 815 views
C6H12O6(aq)->2 C2H5OH(aq) + 2CO2(g)Fermentation of 744mL grape juice(density=1.0 g/cm^3) is allowed to take place in a bottle
1. 2 answers
2. 1,151 views
compund containing only C, H, and N yeilds the following data-1. complete combustion of 34.3 mg of the compund producedmg of CO2
1. 1 answer
2. 545 views
given the reaction -Fe(s)+H2SO4(aq)->FeSO4(aq) + H2(g) the volume of the balloon was 4400m^3 and the loss of hydrogen gas during
1. 1 answer
2. 932 views
hot-air balloon is filled with air at a volume of 3.64 x 10^3 m^3 at 745 torr at 39C. the air in balloon is heated to 60C,
1. 1 answer
2. 1,135 views
What does Antony say Caesar's death symbolizes? Act 3-Scene 2
1. 1 answer
2. 827 views
A standard solution is prepared for the analysis of fluoxymesterone (C20H29FO3), an anabolic steroid. A stock solution is first
1. 1 answer
2. 951 views
The units of parts per million (ppm) and parts per billion (ppb) are commonly used by environmental chemists. In general, 1 ppm
1. 2 answers
2. 1,533 views
A solution is prepared by dissolving 16.5 g ammonium sulfate in enough water to make 145.0 mL of stock solution. A 10.50 mL
1. 2 answers
2. 1,026 views
A solution of ethanol (C2H5OH) in water is prepared by dissolving 57.0 mL of ethanol (density = 0.79 g/cm3) in enough water to
1. 1 answer
2. 1,081 views
what is the formula that will be used for this ?what volume of .100 M NaOH will react completely with 24.00 mL of .900 M HCl?
1. 1 answer
2. 838 views
I have the following problems- write net ionic equations for reactions if no reaction write NR....silver nitrate and ammonium
1. 1 answer
2. 1,239 views
how much of each of the following substances would you add to water to prepare 1.20L of a .85M solution? (sodium carbonate from
1. 1 answer
2. 1,016 views
how much of each of the following substances would you add to water to prepare 1.20L of a .85M solution? (H2SO4 from
1. 1 answer
2. 720 views
What is the molarity of the Cl- ion in the solution of a sample containing 0.187g Cl- dissolved in 50.0 ml water?
1. 6 answers
2. 1,131 views
how many moles of Cl- ion in the solution containing 0.187g Cl- dissolved in 50.0 ml water.
1. 2 answers
2. 1,008 views
i need to know what in the body there is 11 of or what 11 may relate to a certain body part?Need human physiology help here.
1. 0 answers
2. 646 views
I know you've read this question too many times already but I just want to make sure I did the last part (Ksp) correctly.50.0 ml
1. 0 answers
2. 683 views
Dr.Bob you had told me to ignore 2x so I wondering if I wrote my did these steps correctly.Calculate the molar solubility of
1. 1 answer
2. 827 views
OKOK I know that I have posted this question but I just don't understand the last part.50.0 ml of a 0.0500 M solution of lead
1. 0 answers
2. 1,130 views
I don't understand ehat is the chemistry behind the ASA – FeCl3 reaction? what is this question even asking? any response will
1. 0 answers
2. 502 views
What is the chemistry behind the ASA – FeCl3 reaction?
1. 0 answers
2. 509 views
A person pushes a 10 kg box from rest and accelerates it to a speed of 3.2 m/s with a constant force. If the box is pushed for a
1. 1 answer
2. 892 views
The heights, h, of the students in the chorus at Central Middle Schoolsatisfy the inequality |h-57.5/2|¡Ü 3.25 when h is
1. 0 answers
2. 695 views

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