3 years ago

Pls help 20020200202

Chemistry

1 answer:

Ronch [10]3 years ago

6 0

tell me what to do dudette

You might be interested in

Using the table above, calculate the atomic mass of the unknown element.

sleet_krkn [62]

Hehehehejdjdjdjjdjdjjdjdjdjjfjdjr

6 0

3 years ago

Find the volume of 6.45 moles of gas present at a temperature of 27.0oC and a pressure of 675 torr.

maw [93]

<u>Answer:</u> The volume of the gas is 178.76 L

<u>Explanation:</u>

The ideal gas equation is given as:

.......(1)

where

P = pressure of the gas = 675 torr

V = volume of gas = ?

n = number of moles of gas = 6.45 moles

R = Gas constant = 62.36 L.torr/mol.K

T = temperature of the gas = $27^oC=[27+273]K=300K$

Putting values in equation 1, we get:

$675torr\times V=6.45mol\times 62.36L.torr/mol.K\times 300K\\\\V=\frac{6.45\times 62.36\times 300}{675}=178.76 L$

Hence, the volume of the gas is 178.76 L

3 0

3 years ago

Write a chemical equation for nh4+(aq) showing how it is an acid or a base according to the arrhenius definition.

GuDViN [60]

An Arrhenius acid by definition dissociates in water to form H3O+ (or H+) ions while an arrhenius base dissociates in water to form OH- ions.

NH4+(aq) can be categorised as an arrhenius acid since it releases H3O+ ions in aqueous media

NH4+(aq) + H2O (aq) ↔ NH3 (aq) + H3O+(aq)

3 0

3 years ago

Read 2 more answers

I need help click the image please help

Viefleur [7K]

Answer:

a plant cell

Explanation:

because the chrolopast is green

Explanation:

6 0

3 years ago

Jumping on a cemented floor is more pain full than a sandy flour,why

Anvisha [2.4K]

Answer:

Is soft

Explanation:

because concrete is hard ash so t hink flour would be safer

5 0

3 years ago