All categories

3 years ago

1. 3.311 * 10^24 particles=_moles? 2. 126 grams of H2O =________moles of moles? whats the answers

1 answer:

4 0

1. You can use Avogadro’s number, 6.022x10^23 atoms/mole, to answer this one.

(3.311x10^24/6.022x10^23) = 5.498 moles of substance

2. H2O has a formula weight approximately equal to 18 grams. Dividing the given amount by the formula weight of water will tell us the number of moles present.

126/18 = 7 moles H2O

You might be interested in

If an ice cube is placed in a sealed container and heated until it becomes steam, what will happen to the mass of the ice?

OLga [1]

The mass will decrease because it is an gas.

4 0

3 years ago

Read 2 more answers

Boyle's law states that the pressure of a gas is always:

natka813 [3]

Answer:

d. inversely proportional to the volume of its container.

Explanation:

Boyle's law states that at constant temperature and number of moles, the pressure of the gas is inversely proportional to the volume of the gas.

Thus, P ∝ T

P is the pressure

T is the temperature

For two gases at same temperature, the law can be written as:-

${P_1}\times {V_1}={P_2}\times {V_2}$

Thus, according to the question, the answer is:- d. inversely proportional to the volume of its container.

7 0

3 years ago

Explain why lime is added to lakes. Refer to the problem that exists and what lime does to the lakes.

aalyn [17]

Explanation:

Lime is added to lower the acidity of lakes when pH levels go too low.

Acidic environment is harmful to aquatic ecosystems. Acidity causes some minerals, such as phosphorus and calcium, in the water to become unavailable to aquatic organisms like plants and fishes ( This means the water hardness is reduced). The low nutrients cause stress and death in the aquatic environment lowering biodiversity. Applying lime raises the pH to neutral levels and improves the health of the aquatic life in the lake. This also improves economic activities in the lake like fishing.

Learn More:

For more on acidicity of lakes check out;

brainly.com/question/3612253

#LearnWithBrainly

4 0

3 years ago

Convert .14 kilograms to grams

Elodia [21]

Answer:

140 grams

Explanation:

.14 kilograms to grams is 140 grams 

PLEASE DO MARK ME AS BRAINLIEST UWU 

4 0

3 years ago

I really need help..please and thank you.

Elenna [48]

What is the question you need answered

8 0

3 years ago

1. 3.311 * 10^24 particles=_______________moles? 2. 126 grams of H2O =______________________moles of moles? whats the answers

1. 3.311 * 10^24 particles=_moles? 2. 126 grams of H2O =________moles of moles? whats the answers