10/11/22

What is the pressure in a 9.00 L tank with 75.1 grams of fluorine gas at 355 K?
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10/11/22

What is the pressure (in torr) of 2.10 mol of gas in a 7.00 L container at 65.0 °C?
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10/11/22

What volume in liters would 20.0 moles of sulfur dioxide occupy at 85.1 °C with a pressure of 2.00 bar? R = 0.08314 L･bar/mol･K.
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10/11/22

If 13.45 mg of silver chloride were collected at the end of the reaction , how many milliliters of the 0.5558 M magnesium chloride solution reacted ?

Consider the following reaction MgCl2(Aq) + 2 AgNO3(Aq) -> 2AgCl(s) + Mg(NO3)2(Aq)
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10/11/22

General Chemistry
Calculate the volume of solution in mL required from molarity and mole data:0.878 mol KI from 1.31 M solution mL
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10/11/22

what is the answer?
SubstanceSpecific heat J/(g · °C) lead 0.128 silver 0.235 copper 0.385 iron 0.449 aluminum 0.903 The temperature of a sample of lead increased by 24.3 °Cwhen 255 J of heat... more
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10/11/22

what is the answer?
Substance, Specific heat (J/g·°C), Density (g/cm3) gold 0.1256 19.3 silver 0.2386 10.5 water 4.184 1.00 A silver cube with an edge length of 2.41 cm and a gold cube with an edge length... more
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10/11/22

According to the following reaction, how many moles of water will be formed upon the complete reaction of 25.6 grams of hydrogen peroxide (H2O2)?
According to the following reaction, how many moles of water will be formed upon the complete reaction of 25.6 grams of hydrogen peroxide (H2O2)?hydrogen peroxide (H2O2) (aq) water (l)... more
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10/11/22

Balancing the Reaction for Fe(NO3)3.9H2O (s) + H2O (l)
Find the products of Fe(NO3)3.9H2O (s) + H2O (l) and balance if needed. Be sure to include phases.
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10/11/22

help with chemistry
2Pb(s)+O2(g)⟶2PbO(s)2Pb(s)+O2(g)⟶2PbO(s)An excess of oxygen reacts with 451.4 g of lead, forming 372.2 g372.2 g of lead(II) oxide. Calculate the percent yield of the reaction.
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10/11/22

help with chemistry

Consider the combustion reaction for octane (C8H18),(C8H18), which is a primary component of gasoline.2C8H18+25O2⟶16CO2+18H2O2C8H18+25O2⟶16CO2+18H2OHow many moles of CO2CO2 are emitted into the... more
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10/10/22

Science In seventh grade
hydrochloric acid with magnesium oxide to yield manganese chloride plus water plus chlorine gas
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10/10/22

What is the pH?
What is the pH of a 0.0870 M solution of methylamine (CH₃NH₂, Kb = 4.4 × 10⁻⁴)?
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10/10/22

What is the pH?
What is the pH of a 0.0580 M solution of hydrocyanic acid, HCN (Ka = 4.9 × 10⁻¹⁰)?
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10/10/22

What temperature (in °C) did an ideal gas shift to if it was initially at -16.0 °C at 4.62 atm and 35.0 L and the pressure was changed to 3.25 atm and the volume changed to 40.0 L?
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10/10/22

What is the percent yield of the reaction PCI3 ( g ) + 3H₂O ( 1 ) H3PO3 ( aq ) + 3HCl ( aq
1. What is the percent yield of the reaction : PCI3 ( g ) + 3H₂O ( 1 ) H3PO3 ( aq ) + 3HCl ( aq ) where 20.0 g of phosphorus trichloride react with excess water to form 11.2 g of HCI and... more
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10/10/22

What is the pH of a 2.16 M LiF solution?
What is the pH of a 2.16 M LiF solution?
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10/10/22

How many grams of CO2 can be absorbed when 0.250 kg LiOH reacts. 2LiOH + CO2 → Li2CO3 + H2O
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10/09/22

Calculate the concentration of the hydrogen peroxide solution.
The concentration of a hydrogen peroxide solution is determined by titrating it with a 0.1375 M solution of Ce4+. The balanced net ionic equation for the reaction is shown... more
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10/09/22

Use an acid–base titration to calculate the molar mass of an acid.
A 0.7885-g sample of an unknown monoprotic acid is dissolved in water and titrated with standardized barium hydroxide. The equivalence point in the titration is reached after the addition... more
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10/09/22

Calculate the volume of 7.53×10-2 M barium hydroxide required to neutralize 16.6 mL of a 0.331 M hydrobromic acid solution.
Calculate the volume of 7.53×10-2 M barium hydroxide required to neutralize 16.6 mL of a 0.331 M hydrobromic acid solution.
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10/09/22

chemistry hess law
Consider the following equations:2AI(s)+3/2O2(g)--->AI2O3(s) deltaH= -1670kJMn(s)+O2(g)--->MnO2(s) deltaH= -520kJwhat is the standard enthalpy change, in kJ, of the reaction... more
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10/09/22

Calculate the Ka of NH4+
a) Calculate the Ka of NH4+b) What is the pH of a 3.172 M NH4Br solution?
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10/09/22

Calculate the [H+] in each of the following acid solutions.
a. 5.00 mL of 0.250 M HClO4 diluted down to 50.0 mLb.a solution formed by mixing 10.0 mL of 0.100 M HBr with 30.0 mL of 0.200 M HCl
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10/09/22

Which is the stronger Bronsted acid? Explain.
Which is the stronger Bronsted acid? Explain.a) HBrO or HBrb) HNO or HNO2
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