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tensa zangetsu [6.8K]
3 years ago
9

¿De qué manera puedo identificar ácidos y bases en la vida cotidiana?​

Chemistry
1 answer:
inna [77]3 years ago
4 0

Answer:

Ya sea que explore su cocina, su baño o su cuarto de lavado, encontrará excelentes ejemplos de ácidos y bases a su alrededor. La escala de pH es un concepto importante tanto dentro como fuera del laboratorio de química.

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What happens to a glass of sugar solution when sugar is added to it?
galina1969 [7]

Answer:

The molarity of the solution increases.

Explanation:

Molarity is the measure of the concentration of the solute in the solution. In this case, the solvent is the sugar solution and the solute is the sugar.

If sugar is ADDED to the already sugary solution, then there would be more sugar. Therefore, the sugar (solute) would increase in number.

This means that the answer is the third choice: The molarity of the solution increases.

The answer would not be the first or second choice because there isn't anything in the question that implies water. It just says sugar solution.

The answer is not the last choice because the sugar concentration does not decrease after you have added more sugar to it. It increases.

7 0
4 years ago
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How many grams of Ca(NO3)2 are needed to make 25.0 g of a 15.0% Ca(NO3)2(aq)?
yarga [219]

Answer:

3.75 g.

Explanation:

<em>mass percent is the ratio of the mass of the solute to the mass of the solution multiplied by 100.</em>

<em />

<em>mass % = (mass of solute/mass of solution) x 100.</em>

<em></em>

mass of calcium nitrite = ??? g,

mass of the solution = 25.0 g.

∴ mass % = (mass of solute/mass of solution) x 100

<em></em>

<em>∴ mass of solute (calcium nitrite) = (mass %)(mass of solution)/100</em> = (15.0 %)(25.0 g)/100 = <em>3.75 g.</em>

5 0
3 years ago
If the only thing we are interested in studying is how the number of particles affects pressure, what variables do we have to be
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3 years ago
These type of cells lack a nucleus -
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5 0
3 years ago
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Can someone help me plz!!!<br><br> Calculate the mass, in grams, of 2 moles of CaCl2.
Luden [163]

Answer:

222.2 grams of CaCl2 in 2 moles

Explanation:

Mole=given mass/gram mass formula

2moles=x/Gram Mass Formula

(Gram Mass Formula of CaCl2):

Ca=40.1

Cl= 35.5 x 2= 71

-----------------------

GFM=111.1

2 moles = x/111.1 g

x=222.2

7 0
3 years ago
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