02/18/20

Enter the equation for the reaction of one sodium bicarbonate (NaHCO3) molecule with one citric acid (C6H8O7) molecule. Do not include phases.
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02/18/20

Consider the equation. NaCl ( aq ) + AgNO 3 ( aq ) ⟶ AgCl ( s ) + NaNO 3 ( aq )
Identify the spectator ions in the equation.NO-3(aq)Na+(aq)Cl-(aq)Ag+(aq)
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02/18/20

Enter the net ionic equation for the reaction of AgNO3(aq) with K2SO4(aq) . Include phases. Refer to the solubility rules as necessary
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02/18/20

Complete and balance the precipitation reactions. Include physical states
precipitation reaction:K3PO4(aq)+MgCl2(aq)⟶
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02/18/20

What is the balanced chemical equation for the combustion of methane
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02/18/20

Calculate the value of Kc for the reaction. 
Ammonia can be oxidized in oxygen as shown: 4 NH3(g) + 3 O2(g) <=> 2 N2(g) + 6 H2O(g). When 0.695 mol of NH3 and 0.551 mol of O2 are placed in a 1.00 L container at a certain temperature, the... more
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02/18/20

Chemistry homework

When 21.44 moles of silicon reacts with 17.62 moles of nitrogen, how many moles excess are left over?
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02/18/20

Chemistry homework

Calculate the moles of zinc chloride produced if 19g of zinc reacts with 19g magnesium chloride
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02/18/20

What is the relation between Molar enthalpy and Change in enthalpy? How do we use them together?
If I calculate Q=mc(delta t) as Q= (54.25 g)(4.19 J/g C)( 6 C) and get 1363.845 J. How do I convert this into change in enthalpy and molar enthalpy? This was done for a Calorimetry... more
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02/18/20

Equilibria Question
Upon conducting an electrophoretic mobility shift assay with DNA, 30% of your DNA is bound by a protein (P) when the total protein concentration is 2.0 μM and the total DNA concentration is 1 nM.... more
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02/17/20

Ammonium carbamate (NH2COONH4) is found in the blood and urine of mammals.
Ammonium carbamate (NH2COONH4) is found in the blood and urine of mammals. At a temperature of 340 K, Kc = 0.568 for the following equilibrium:NH2COONH4(s) <=> 2 NH3(g) + CO2(g).If 10.2 g of... more
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02/17/20

Complete and balance the molecular equation for the reaction of aqueous sodium sulfate, Na2SO4 , and aqueous barium nitrate, Ba(NO3)2 . Include physical states
balance the molecular equation: Na2SO4(aq)+Ba(NO3)2(aq) -->then:Enter the balanced net ionic equation for this reaction. Include physical states
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02/17/20

What is the balanced chemical equation for the combustion of methane?
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02/17/20

help with this please
if 4 titrations were run which resulted in the following data sets, calculate the precision of the titrations.a.) DATA: 48.62%, 48.43%, 49.08%, 48.78%b.) DATA: 7.68%, 7.84%, 6.94%, 7.29%
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02/17/20

Reaction between sodium thiosulfate and hydrochloric acid?
I would really appreciate a detailed explanation of the reaction between sodium thiosulfate and hydrochloric acid.Thanks for the help!😊
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02/17/20

Abundance Calculations
Hello, is there a formula related to the problem below? I know calculating abundance is percentage as a decimal multiplied by mass. I'm just not sure of below; Silver has two naturally occurring... more
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02/17/20

KHP titration help
answer the following questions based on the reaction below: NaOH(aq) + KHP(s) --> NaKP(aq)+H2O(I) A 1.864 g sample of impure KHP was titrated with a 0.0978 M solution of NaOH. To completely... more
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02/17/20

Estimate Using bond enthalpies
Estimate ΔHrxn for the following chemical reaction using the bond enthalpies in the table found here. Report your answer to zero decimal places in standard notation (i.e. 123. kJ *For numbers... more
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02/17/20

If the mixture is analyzed and found to contain 1.2 bar of Cl2, 1.6 bar of Br2 and 7.8 bar of BrCl, describe the situation
Consider the gas-phase reaction, Cl2(g) + Br2(g) <=> 2 BrCl(g), for which Kp = 32 at 500 K. If the mixture is analyzed and found to contain 1.2 bar of Cl2, 1.6 bar of Br2 and 7.8 bar of BrCl,... more
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02/17/20

Given the values of K shown below, determine the value of K for the reaction
Given the values of K shown below, determine the value of K for the reaction,N2(g) + 2 O2(g) <=> 2 NO2(g).N2(g) + O2(g) <=> 2 NO(g)       K = 2NO2(g) <=> NO + 1/2 O2(g)    K =... more
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02/17/20

Given that Kc = 82, calculate the equilibrium pressure of H2.
In the reaction below, 4.85 atm each of H2 and Cl2 were placed into a 1.00 L flask and allowed to react:H2(g) + Cl2(g) <=> 2 HCl(g)Given that Kc = 82, calculate the equilibrium pressure of... more
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02/17/20

Calculate Kp for the reaction at this temperature.
At a given temperature, 1.99 atm of F2 and 2.88 atm of Br2 are mixed and allowed to come to equilibrium. The equilibrium pressure of BrF is found to be 1.117 atm. Calculate Kp for the reaction at... more
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02/17/20

Ammonium carbamate (NH2COONH4) is found in the blood and urine of mammals.
Ammonium carbamate (NH2COONH4) is found in the blood and urine of mammals. At a temperature of 340 K, Kc = 0.568 for the following equilibrium:NH2COONH4(s) <=> 2 NH3(g) + CO2(g).If 10.2 g of... more
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02/16/20

When you combine 0.10M potassium carbonate and 0.05M chromium nitrate does it cause a chemical reaction ? and why ?
Need this for a chemistry reportboth were liquids and added vertically
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02/16/20

Consider the following reaction. A(aq) <---> 2B(aq) Kc = 5.17 x 10^-6
I have been trying to figure out how to do this problem. I am not that good at ICE tables. Consider the following reaction. A(aq) <--> 2B(aq) Kc = 5.17 x 10^-6 at 500K. If a 5.10 M sample of... more
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