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GuDViN [60]
3 years ago
5

A student wants to know if the effect of gravity is the same on all objects. She follows these steps:

Chemistry
1 answer:
BartSMP [9]3 years ago
8 0
Choose new balls (which is A I believe)
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Find the mass that corresponds to each number of
jeka94

Answer:159.7 g.

Explanation:

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3 years ago
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Suppose you are titrating vinegar, which is an acetic acid solution
kotegsom [21]

Answer:

0.373 M

Explanation:

The balanced equation for the reaction is given below:

HC2H3O2 + NaOH —> NaC2H3O2 + H2O

From the balanced equation above, the following were obtained:

Mole ratio of the acid, HC2H3O2 (nA) = 1

Mole ratio of the base, NaOH (nB) = 1

Next, we shall write out the data obtained from the question. This include:

Volume of base, NaOH (Vb) = 32.17 mL

Molarity of base, NaOH (Mb) = 0.116 M

Volume of acid, HC2H3O2 (Va) = 10 mL

Molarity of acid, HC2H3O2 (Ma) =..?

The molarity of the acid solution can be obtained as follow:

MaVa/MbVb = nA/nB

Ma x 10 / 0.116 x 32.17 = 1

Cross multiply

Ma x 10 = 0.116 x 32.17

Divide both side by 10

Ma = (0.116 x 32.17) /10

Ma = 0.373 M

Therefore, the concentration of the acetic acid is 0.373 M.

8 0
3 years ago
Explain what the name scandium(III) oxide means
Archy [21]
<span>The roman numeral 3 represents the oxidation of the metal, scandium. </span>
3 0
3 years ago
On 100 corex
Julli [10]

Answer:

P(total) = 164 mmHg

Explanation:

Given data:

Partial pressure of helium = 77 mmHg

Partial pressure of nitrogen = 87 mmHg

Total pressure of flask = ?

Solution:

According to Dalton law of partial pressure,

The total pressure inside container is equal to the sum of partial pressures of individual gases present in container.

Mathematical expression:

P(total) = P₁ + P₂ + P₃+ ............+Pₙ

Now we will solve this  problem by using this law.

P(total) = P(He) + P(N₂)

P(total) =  77 mmHg + 87 mmHg

P(total) = 164 mmHg

3 0
3 years ago
Avoid of diseases in monsoon season-
Dominik [7]

Answer:

Monsoon seasonal diseases can be avoided by keeping surroundings clean, removing stagnant water, eating homemade food, washing hands properly, eating clean and drinking boiled water.

Explanation:

1. Make efforts in making the environment mosquito free by proper cleaning and removing stagnant water as well.

2. Use mosquito repellant, mainly net that has no side effects and is ecofriendly.  

3. Avoid moving to crowded places to prevent viral infections.

4. Consume food made at home and boiled water.

5. Wash hands before consuming food.

4 0
3 years ago
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