O<br> O<br> O<br> A. Molecule B. Compound<br> C. Both

What is the chemical equation for lead (ll) acetate reacts with potassium iodide to produce lead(ll) iodide and potassium acetat

cluponka [151]

Answer:

Pb(C2H3O2)2 + KI ----> PbI2 + KC2H3O2

Explanation:

all the numbers are written as subscripts

6 0

2 years ago

formic acid, hcooh, is a weak acid with a ka equal to 1.8×10–4. what is the ph of a 0.0115 m aqueous formic acid solution?

kvasek [131]

The pH of a 0.0115 m aqueous formic acid solution is mathematically given as

pH=2.8424

This is further explained below.

<h3>What is the ph of a 0.0115 m aqueous formic acid solution?</h3>

Generally, the equation for the chemical equation is mathematically given as

HCOOH H^+ + HCOO

$\quad C-C \alpha \quad C \alpha$

$&k a=\frac{c^2 \alpha^2}{e(1-\alpha)}\\\\&K_a=\frac{c \alpha^2}{1-\alpha_4} \quad|\gg\rangle \alpha\\\\&K_a=c \alpha^2\\\\&\alpha=\sqrt{\frac{k a}{c}}\\\\&\alpha=\sqrt{\frac{1.8 \times 10^{-4}}{0.0115}}\\\\&\alpha=\sqrt{156: 527710^{-4}}\\\\&\alpha=\sqrt{1.565 \times 1 \sigma^2}\\\\&\alpha=1.25 \times 10^{-1}\\\\&\alpha=0.125\\$

$&\left[\mathrm{H}^{+}\right]=\mathrm{C \alpha}\\\\&=0.125 \times 0.0115\\\\&=1.4375 \times 10^{-9}\\\\&P=-\log \left[H^{+}\right]\\\\&=-\log \left[1.4375 \times 10^{-3}\right]\\\\&P H=2.8424$

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8 0

1 year ago

How many phosphate bonds are responsible for the high energy content of ATP? A) one B) two C) three D) four

Komok [63]

The answer is A. The ATP is called adenosine triphosphate which means that it has three phosphate groups. But when energy is released from ATP, ATP will transform to ADP. In this process, only one phosphate bond will break.

6 0

3 years ago

Read 2 more answers

The pH of a solution of a is increased from 2 to 3 then the concentration of h + ions will become

Tpy6a [65]

Answer:

The H+ concentration would decrease by 10 fold. From .01 to .001

Explanation:

This is due to how a pH of 2 is expressed in scientific notation as 10^-2 power when referring to H+ concentration so a pH of 3 would be 10^-3. Hence it would be 10 times smaller in concentration as the power increases to the negative power the smaller the concentration becomes.

3 0

3 years ago

Calculate the wavelength in nm of ultraviolet light with frequency of 5.5 x 10¹⁵ Hz.

snow_tiger [21]

Answer: Wavelength of ultraviolet light is 54 nm.

Explanation:

Electromagnetic wave is defined as the wave which is associated with both electrical and magnetic component associated with them. They can travel in vacuum as well and travel with the speed of light.

The relationship between wavelength and frequency of the wave follows the equation:

$\nu=\frac{c}{\lambda}$