All categories

3 years ago

Please help check over my work, sorry for spamming

Chemistry

2 answers:

steposvetlana [31]3 years ago

7 0

Answer:

reflection you're right

Explanation:

kotykmax [81]3 years ago

6 0

You are correct. (Reflection)

You might be interested in

Water (H2O) is not found on the periodic table because water is it an _.

omeli [17]

It does not consist of a single element

Hope I helped! ( Smiles )

3 0

3 years ago

Read 2 more answers

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

3 years ago

ATOMS: MULTIPLE CHOICE

loris [4]

Answer:

Double bonds. It says I have to write more words lol but yeah it's double bonds

4 0

2 years ago

Someone help please?

Romashka [77]

I am hamster fun boo poop

3 0

3 years ago

A newly discovered unicellular organism from acidic mine drainage is found to contain a cell wall, a plasma membrane, two flagel

makvit [3.9K]

Answer:

The correct option is D) a motile eukaryote

Explanation:

Peroxisomes are structures which are present only in the plant or animal cells. Hence, based on this observation we can easily tell that the organism which is newly discovered is a eukaryote. Both plants and animals are eukaryotes.

Flagella are structures which are thin and hair shaped. Flagella allow movement of a cell, mostly they allow a whip-like movement. Based on this observation we will conclude that the organism discovered is a motile eukaryote.

5 0

3 years ago