All categories

2 years ago

What chemical is in plastic bottle and how it affect humans?

1 answer:

7 0

BPA, or bisphenol A, is in most plastics and it is toxic to humans because it can bind to the estrogen hormone and greatly alter your body's natural functions from there. It can also bind to your thyroid hormone.

You might be interested in

Acetylsalicylic acid (aspirin), HC9H7O4, is the most widely used pain reliever and fever reducer. Find the pH of 0.035 M aqueous

KatRina [158]

The pH of 0.035 M aqueous aspirin is 2.48

Explanation:

We are given:

Concentration of aspirin = 0.035 M

The chemical equation for the dissociation of aspirin (acetylsalicylic acid) follows:

$HC_9H_7O_4\rightleftharpoons H^++C_9H_7O_4^-$

Initial: 0.035

At eqllm: 0.035-x x x

The expression of $K_a$ for above equation follows:

$K_a=\frac{[C_9H_7O_4^-][H^+]}{[HC_9H_7O_4]}$

We are given:

$K_a=3.6\times 10^{-4}$

Putting values in above expression, we get:

$3.6\times 10^{-4}=\frac{x\times x}{(0.035-x)}\\\\x=-0.0037,0.0033$

Neglecting the value of x = -0.0037 because concentration cannot be negative

So, concentration of $H^+$ = x = 0.0033 M

To calculate the pH of the solution, we use the equation:

$pH=-\log[H^+]$

We are given:

$H^+$ = 0.0033 M

Putting values in above equation, we get:

$pH=-\log(0.0033)\\\\pH=2.48$

Hence, the pH of 0.035 M aqueous aspirin is 2.48

7 0

2 years ago

Which set of coefficients will correctly balance the following skeleton equation?

slamgirl [31]

Answer:

2Fe + 3Cl2 → 2FeCl3

Explanation:

5 0

2 years ago

What information do you get from the following

Gelneren [198K]

Explanation:

Kẽm tác dụng với axit clorua ( nhiệt độ ) thì sẽ tạo ra Kẽm II clorua và có khí Hidro bay lên

8 0

2 years ago

Which objects are malleable tin fork and knife from a camping set, antique ceramic case, steel pole fence post, marble sculpture

LenaWriter [7]

Answer:

Tin fork and knife from a camping set, a steel pole fence post, and a copper coin.

Explanation:

Hope this halps. UwUz

7 0

2 years ago

Which question is the scientist most likely trying to answer about the bacteria

Molodets [167]

The way it is formed.

7 0

3 years ago