05/27/20

Write the rate laws for the following elementary reactions. (Rate expressions take the general form: rate = k . [A]a . [B]b.)
Write the rate laws for the following elementary reactions. (Rate expressions take the general form: rate = k . [A]a . [B]b.)20    20   F → Ne + β (nuclear decay)9    10-Hello, I know the... more
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05/27/20

How did you get .0821?
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05/27/20

Why is But-3-ene incorrect?

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05/26/20

For the reaction ?Al+?Cl2 →?AlCl3 , what is the maximum amount of AlCl3 which could be formed from 6 mol of Al and 7.88 mol of Cl2? Answer in units of g.
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05/26/20

Consider the following reaction. N2 + 3 H2 → 2 NH3 . 28.0 grams of N2 and 5.04 grams of H2 are reacted, producing 17.8 grams of NH3. What is the percent yield?
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05/26/20

CaCN2 + 3 H2O → CaCO3 + 2 NH3 QUESTION IN DESCRIPTION TOO LONG
Given the reaction:CaCN2 + 3 H2O → CaCO3 + 2 NH3What is the percent yield if 15.5 g of NH3 is produced upon reaction of 65.5 g of CaCN2 and 451 g of water? The molar mass of CaCN2 is 80.11 g/mol... more
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05/25/20

what is the volume of oxygen gas required to react completely with 19.0 L of ethane gas according to the following equation: 2C2H6 + 7O2 --> 4CO2 + 6H2O under STP conditions?
what is the volume of oxygen gas required to react completely with 19.0 L of ethane gas according to the following equation:2C2H6 + 7O2 --> 4CO2 + 6H2Ounder STP conditions?
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05/25/20

For the reaction ?H2+?O2 →?H2O, what is the maximum amount of H2O which could be formed from 10.9 g of H2 and 16.03 g ofO2? Answer in units of g.
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05/25/20

For the reaction ?C6H6 + ?O2 → ?CO2 + ?H2O 27.3 grams of C6H6 are allowed to react with 73.81 grams of O2. How much CO2 will be produced by this reaction? Answer in units of grams.
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05/25/20

Nitric oxide (NO) is made from the oxidation of NH3 according to the equation 4 NH3 + 5 O2 → 4 NO + 6 H2O . If an 13.97 g sample of NH3 gives 22.6 g of NO, what is the percent yield?
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05/25/20

2.4 mol Fe(OH)3 and 7.9 mol H2SO4 react according to the equation 2Fe(OH)3+3H2SO4−→ Fe2(SO4)3 +6H2O. If the limiting reactant is Fe(OH)3, determine the amount of excess reactant that remains.
2.4 mol Fe(OH)3 and 7.9 mol H2SO4 react according to the equation 2Fe(OH)3+3H2SO4−→ Fe2(SO4)3 +6H2O. If the limiting reactant is Fe(OH)3, determine the amount of excess reactant that remains.
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05/25/20

molarity chemistry

A solution of NaOH is made with a molarity of 0.5M and a volume of 3.0L. How many g of NaOH are in the solution?
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05/25/20

When the volume of a reaction vessel for a gas system at equilibrium is increased
When the volume of a reaction vessel for a gas system at equilibrium is increaseda)The equilibrium is not changedb)The equilibrium shifts to the RHSc)The equilibrium shifts to the LHSd)Not enough... more
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05/25/20

chemistry question

If the rate law for a hypothetical reaction is r = k[A]^2[B]^1, what is the order of reaction with respect to A?
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05/25/20

urgent help required

Which of the following statements concerning rate laws is true? A. All reactants must appear in the rate law B. The rate constant increases when the rate increases C. Products may appear in the... more
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05/25/20

Consider the following system with the following concentrations:
Consider the following system with the following concentrations::CO(g)+H2O(g)⇌CO2(g)+H2 K= 1.0 [CO2]= 0.2 M[H2]=2.0M[CO]=1.0M[H2O]=1.0MWhich of the following is true about this system?a)This... more
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05/23/20

Suppose you were calibrating a 25.0 mL volumetric flask using distilled water.

Suppose you were calibrating a 25.0 mL volumetric flask using distilled water. The flask temperature was at 20 °C , and you assumed that the distilled water was as well. However, you later discover... more
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05/23/20

Calculate the concentration of F− in solution and its absolute uncertainty.

A solution of F− is prepared by dissolving 0.0858 ± 0.0006 g NaF (molar mass = 41.989±0.001 g/mol ) in 155.00 ± 0.06 mL of water. Calculate the concentration of F− in solution and its... more
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05/22/20

What is the pH of the perchloric acid solution if 4.55 L of perchloric acid solution reacted completely with 1.86 g sodium carbonate in a double replacement reaction?
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05/22/20

chemistry homwork
1) what is the molar mass of Al2(SO4)3 show all the steps, calculations and units?2) show all the steps, calculations, and units. how many atoms are represented by the followingsa) 3,5 mol of... more
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05/22/20

25200 J of heat are added to 2.0 kg of mercury to reach a final temperature of 130°C. What was the initial temperature (°C) of the mercury? (NOTE: The specific heat capacity of mercury is 0.14 J/g°C)
25200 J of heat are added to 2.0 kg of mercury to reach a final temperature of 130°C. What was the initial temperature (°C) of the mercury? (NOTE: The specific heat capacity of mercury is 0.14 J/g°C)
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05/22/20

Would 3.0 kg of water warmed from 10.0°C to 80.0°C an endothermic or exothermic reaction?
Would 3.0 kg of water warmed from 10.0°C to 80.0°C an endothermic or exothermic reaction?
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05/22/20

Sort the states of water by density, from the least dense to the most dense.
Sort the states of water by density, from the least dense to the most dense.
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05/22/20

Why does liquid water have such a high heat capacity?
Why does liquid water have such a high heat capacity?
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05/22/20

For exothermic and endothermic reactions, the value of enthalpy change respectively is?
A balanced chemical reaction that includes the heat change (evolved or absorbed Delta H) during the reaction is called the thermochemical reaction. For exothermic and endothermic reactions, the... more
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