03/06/23

Consider the given reaction. A(aq)+B(s)↽−−⇀C(aq)𝐾=9.40 Suppose 13.2 mol A reacts with excess B in 5.70 L of solution. Calculate the concentration of C at equilibrium. [C]= M
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03/06/23

Consider the reaction. A(aq)↽−−⇀3B(aq)𝐾c=1.80×10−6at 500 K If a 4.80 M sample of A is heated to 500 K , what is the concentration of B at equilibrium? [B]= M
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03/06/23

Carbon disulfide is prepared by heating sulfur and charcoal. The chemical equation is S2(g)+C(s)↽−⇀CS2(g)𝐾c=9.40 at 900 K

How many grams of CS2(g) can be prepared by heating 8.89 mol S2(g) with excess carbon in a 5.05 L reaction vessel held at 900 K until equilibrium is attained?mass of CS2(g):g=?
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03/06/23

Stoichiometry Question

Is 6.02x10^23 molecules of carbon monoxide greater than, less than, or equal to 1 mole of carbon dioxide molecules?Is 1 mole carbon monoxide greater than, less than, or equal to1 mole of carbon... more
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03/06/23

Stoichiometry Question
Can you fit one mole of people into a classroom? why or why not?
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03/06/23

Stoichiometry Question

Can you help me sort from smallest to largest?1/2 mole, 5, 2 pair, 1 ream=500, 4 dozen, 5.5x10-4
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03/06/23

Complete the balanced chemical reaction for the following weak base with a strong acid. In this case, write the resulting acid and base as its own species in the reaction.
CH3NH2 + HClO3
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03/06/23

How many milliliters of an aqueous solution of 0.161 M manganese(II) sulfate is needed to obtain 16.4 grams of the salt?
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03/05/23

Equilibrium Table Question

The reactionC(s)+2H2(g)⇌CH4(g)has 𝐾p=0.263 at 1000 K. What is the total pressure when 5.441 g of H2 and 8.674 g of C(s) are placed in a 9.81 L flask and heated to 1000 K?𝑃total=
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03/05/23

Determine the volume (in mL) of water that needs to be added to 50.0 mL of a 0.600 M LiBr to produce a 0.145 M solution. Assume the volumes are additive.
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03/05/23

10.0 mL of water was added to 100.0 mL of 0.250 M CaCl₂ solution. Assuming the volumes are additive, what is the CaCl₂ concentration in the diluted solution?
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03/05/23

How much Sodium nitrate is in the original sample
A 0.4230 g sample of impure sodium nitrate (contains sodium nitrate plus inert ingredients) was heated, converting all the sodium nitrate to 0.1958 g of sodium nitrite and oxygen gas. Determine the... more
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03/05/23

Give the net ionic equation for the reaction (if any) that occurs when aqueous solutions of Rb2S and Ni(NO3)3 are mixed
a. Rb+(aq) + NO3-(aq) → RbNO3(s)b. No reaction occursc. 2 Ni3+(aq) + 3 S2-(aq) → Ni2S3(s)d. 2 Ni3+(aq) + 3 S2-(aq) + 6 Rb+(aq) + 6 NO3-(aq) → 2 Ni3+(aq) + 3 S2-(aq + 6 RbNO3(s)e. 2 Ni3+(aq) + 3... more
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03/04/23

Need help finding the ph
What is the pH at 25 ∘C of water saturated with CO2 at a partial pressure of 1.15 atm ? The Henry's law constant for CO2CO2 at 25 ∘C∘C is 3.1×10−2mol/L-atm. TheCO2 is an acidic oxide, reacting... more
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03/04/23

What is Ka for the conjugate acid of CH₃NH₂ (Kb = 4.4 × 10⁻⁴)?
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03/04/23

Write the formula of the conjugate acid of the Brønsted-Lowry base, HBO₃²⁻
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03/03/23

If we attempt to react 12 grams of aluminum with 12 grams of bromine, the mass of aluminum bromide that will be produced will be
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03/02/23

Determine the Ph
Determine the pH during the titration of 22.2 mL of 0.363 M acetic acid (Ka = 1.8×10-5) by 0.329 M NaOH at the following points.(a) Before the addition of any NaOH (b) After the addition of 6.10 mL... more
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02/27/23

Calculate the moles of water removed and the moles of anhydrous calcium sulfate remaining in the crucible.
In a crucible, a 1.803g sample of hydrated calcium sulfate (CaSO4 . XH2O) is heated until a constant mass is reached. The mass of the anhydrous calcium sulfate is 1.426g.
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02/27/23

Percent composition and empirical formula

A compound consists of 85.7% carbon and 14.3% hydrogen. Determine its empirical formula?if the compound in the question above has 4 molar mass of 392g/mol, what is its molecular formula?
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02/26/23

1.) Perform the following calculations and express the answer with the appropriate number of sig figs. Show as much work as you can.
1.) Perform the following calculations and express the answer with the appropriate number of sig figs. Show as much work as you can.B.) (249.362 + 41) / 63.498
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02/26/23

3. Complete the following density problems. Be sure to express your answers with the proper number of sig figs.
3. Complete the following density problems. Be sure to express your answers with the proper number of sig figs.D. Calculate the density, in units of g/mL, of a 0.0200 L sample of a salt solution... more
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02/26/23

Molecular weight
10grams of solid parafin wax is dissolved in 50grams of diethylether at 298k.The vapour pressure of the solution is 495mmhg. If the vapour pressure of pure diethylether at 2298k is 510mmhg.find the... more
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02/26/23

What is the concentration of lithium ions in 0.360 M Li₃PO₄?
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02/26/23

Please answer description
If 42.3 g of AgNO₃ react with 28.6 g of H₂SO₄ according to this UNBALANCED equation below, what is the mass in grams of Ag₂SO₄ that could be formed? AgNO₃(aq) + H₂SO₄ (aq) → Ag₂SO₄ (s) + HNO₃ (aq)
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