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3 years ago

What coefficients do you need to balance the following equation Rb, P, Rb3P

Chemistry

1 answer:

expeople1 [14]3 years ago

4 0

Answer:

3,1,1 would work

Explanation:

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Which of the following solutions would have the highest pH? Assume that they are all 0.10 M in acid at 25°C. The acid is followe

Anastaziya [24]

Answer:

$HCN~~Ka=4.9x10^-^1^0$

Explanation:

In this case, we have to remember the <u>relationship between the Ka value and the pH</u>. We can use the general reaction for any acid with his Ka value expression:

$HA~->~H^+~+~A^-$ $Ka=\frac{[H^+][A^-]}{[HA]}$

In the Ka expression, we have a<u> proportional relationship</u> between Ka and the concentration of $H^+$ . Therefore, if we have a higher Ka value we will have a smaller pH (lets keep in mind that with a higher

So, if we have to find the higher pH value we need to search the <u>smaller Ka value</u> in this case $HCN~~Ka=4.9x10^-^1^0$ .

I hope helps!

8 0

3 years ago

If I have 5.6 liters of gas in a piston at a pressure of 150 kPa and compress the gas until its volume is 4.8 L, what will the n

Mashcka [7]

Answer:

P1V1 = P2V2

(1.5 atm)(5.6 L) = (x)(4.8 L) x = 1.8 atm

6 0

3 years ago

How the proton H gradient is used to make ATP

sladkih [1.3K]

Answer:

The proton gradient produced by proton pumping during the electron transport chain is used to synthesize ATP. Protons flow down their concentration gradient into the matrix through the membrane protein ATP synthase, causing it to spin (like a water wheel) and catalyze conversion of ADP to ATP.

4 0

3 years ago

Can someone please help mee finish this?

zvonat [6]

Answer:

1.Physical. People measure water by themselves.

2.Physical. People chop wood.

Explanation:

(this is all I can answer for you. you have to explain it by yourself tho.)

I dont know if I'm correct so you should double check.

4 0

4 years ago

2ca(s)+o2(g) → 2cao(s) δh∘rxn= -1269.8 kj; δs∘rxn= -364.6 j/k

Alinara [238K]

Gibbs free energy change for the reaction at 29°C. is equal to -1378.93 KJ.

<h3>What is Gibbs's free energy?</h3>

Gibbs free energy can be described as the enthalpy of the system minus the product of the temperature and entropy.

If the chemical reaction can be carried out under constant temperature ΔT = 0:

ΔG = ΔH – TΔS

The above equation is known as the Gibbs-Helmholtz equation.

ΔG > 0 non-spontaneous and endergonic and ΔG < 0 spontaneous and exergonic, ΔG = 0 is representing equilibrium.

Given the ΔS = -364 J/K, ΔH = -1269.8 KJ, T = 29°C = 29 + 273 = 302 K

ΔG = - 1269 - 302 × 364

ΔG = -1269 KJ - 109.93 KJ

ΔG = - 1378.93 KJ

Learn more about Gibbs's free energy, here:

brainly.com/question/13318988

#SPJ1

Your question is incomplete, most probably the complete question was,

2Ca(s)+O₂(g) → 2CaO(s)

ΔH∘rxn= -1269.8 kJ; ΔS∘rxn= -364.6 J/K

For this problem, assume that all reactants and products are in their standard states.

Calculate the free energy change for the reaction at 29°C.

6 0

2 years ago