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dimulka [17.4K]
3 years ago
8

Which of Newton's Laws describes the relationship between the mass

Chemistry
1 answer:
Burka [1]3 years ago
4 0

Answer:

I think it may be C because Newton's second law of motion states that the acceleration of an object equals the net force acting on the object divided by the object's mass.

There's also a possibility of B as well because the Law of force and acceleration but im not sure

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A beaker contains 578 mL of water. Convert to quarts
Lapatulllka [165]
0.578 mL = 0.611 US qt = 0.509 Imp qt

Do you mean US quarts or Imperial quarts?

578 mL × \frac{1 L}{1000 mL} = 0.578 L

US quarts

0.578 L × \frac{1.057 qt}{1 L} = 0.611 qt

Imperial quarts

0.578 L × \frac{0.880 qt}{1 L} = 0.509 qt
7 0
3 years ago
Read 2 more answers
40.00 mL of 0.10 M KOH solution is titrated by 30.00 mL of 0.10 M HCl (adding HCl to KOH). What is the pH of the solution in the
Natali5045456 [20]

Answer:

pH=12.16

Explanation:

<u>The alkaline solution: </u>

40 ml of 0.1 M KOH

n_{KOH}=\frac{1 L}{1000mL}*40mL*0.1M=0.004 mol

<u>The acid solution: </u>

30 ml of 0.1 M HCl

n_{HCl}=\frac{1 L}{1000mL}*30mL*0.1M=0.003 mol

The neutralization reaction:

HCl + KOH \longrightarrow KCl + H_2O

For 1 mol of HCl, 1 mol of KOH is consumed. If 0.003 mol of HCl are added, 0.003 mol of KOH reacted.

After titration:

n_{KOH}=0.001 mol

n_{HCl}= 0 mol

Concentration (don't forget to add the volumes)

n_{KOH}=\frac{1 1000mL}{1L *70mL}*0.001 mol=0.0143 mol

Calcualtion of the pOH:

pOH=-log([OH^-])=-log(0.0143)=1.84

For the pH:

pH=14-pOH=14-184=12.16

4 0
3 years ago
How much naoh is needed to prepare 461 ml of solution with a ph of 10.00?
Trava [24]

Answer: -

Volume of NaOH = 461 mL = 461/1000 = 0.461 L

pH = 10.0

Using the relation pH + pOH = 14.00

pOH = 14.00 - 10.00= 4.00

Using the relation

[OH⁻] = 10^{-pOH}

= 10^{-4.00} M

Since NaOH is a monobasic acid,

[NaOH] = [OH⁻] = 10^{-4.00} M

Amount of NaOH = [NaOH] x Volume of NaOH

= 10^{-4.00} M x 0.461 L

= 4.61 x 10⁻⁵ mol

Molar mass of NaOH = 23 x 1 + 16 x 1 + 1 x1

= 40 g / mol

Mass of NaOH required = 4.61 x 10⁻⁵ mol x 40 g/ mol

= 1.84 x 10⁻³ g

3 0
4 years ago
1. El metodo cientifico pretende sistematizar el proceso de obtención del conocimiento cientifico, evitar la subjetividad en los
____ [38]

Answer:

La afirmación es verdadera.

Explanation:

El método científico es un método de  investigación usado principalmente en la producción de conocimiento en las ciencias y se define como un procedimiento para tratar un conjunto de problemas. En ciencia, el método científico es la estrategia para la investigación y la exploración de lo desconocido.

Por lo que el método científico es el procedimiento mediante el cual es posible alcanzar un  conocimiento objetivo de la realidad, tratando de dar respuesta a las interrogantes  acerca del orden de la naturaleza.

Para ser científico, un método de investigación debe basarse en la empírica y en la  medición, sujeto a los principios específicos de las pruebas de razonamiento.

El método científico se basa en la reproducibilidad, es decir, la  capacidad de repetir un determinado experimento, en cualquier lugar y por cualquier  persona, y la refutabilidad,  es  decir toda proposición científica tiene que ser susceptible de  ser falsada o refutada.

Entonces <u><em>la afirmación es verdadera.</em></u>

6 0
3 years ago
HELP PLS<br> kakwkwkwkkwkwkw
Vanyuwa [196]

Answer:

yo try and search it on Google

4 0
4 years ago
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