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Umnica [9.8K]
3 years ago
11

A series of logical steps that is followed in order to solve a problem is called the *

Chemistry
2 answers:
olga55 [171]3 years ago
5 0

Answer:

C. Scientific method

Explanation:

we did this in my middle school and this was the only method we were allowed to use to solve problems or questions we had.

velikii [3]3 years ago
3 0

Answer:

YUNG PANGATLO LETER D.

Explanation:

YUN ANG SAGUT :>

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Answer:

Explanation:

step 2

3 0
3 years ago
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11. What is the concentration (in M) of an ammonia (NH3) solution if 12.23 grams of ammonia are
photoshop1234 [79]

Answer:  1.284M NH3

Explanation:  (12.23 grams)/(17.0 gramms/mole) = 0.7191 moles

Dissolved in 560.0 ml (=0.5600L)

(0.7191 moles)/(0.560L) = 1.284M  (4 sig figs)

5 0
3 years ago
A sample of aluminum has mass 26.98 g and has a density of
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Answer:

9.99L

Explanation:

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3 years ago
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Lead is a toxic metal that affects the central nervous system. A Pb-contaminated water sample contains 0.0011% Pb by mass. How m
Shalnov [3]

Lead is a toxic metal that affects the central nervous system. A Pb-contaminated water sample contains 0.0011% Pb by mass. 13.6 × 10³ ml water contains 150 mg of Pb.

<h3>How to calculate the mass of solution ? </h3>

Given percentage of Pb present in the sample solution is 0.0011%

That means 0.0011 grams of Pb present in the 100g of solution.

So,

= \frac{0.150\ \text{g Pb} \times 100\ \text{g water}}{0.0011\ \text{g of Pb}}

= 13.6 × 10³ g water

<h3>What is Density ? </h3>

The mass per unit volume is called density. Density is represented as D or ρ.

It is expressed as:

\rho = \frac{m}{V}

where,

ρ = Density

m = mass of the object

V = Volume of object

Now put the value in above expression we get

\rho = \frac{m}{V}

1\ g/ml = \frac{13.6 \times 10^3}{V}

V = 13.6 × 10³ ml

Thus from the above conclusion we can say that Lead is a toxic metal that affects the central nervous system. A Pb-contaminated water sample contains 0.0011% Pb by mass. 13.6 × 10³ ml water contains 150 mg of Pb.

Learn more about the Density here: brainly.com/question/1354972

#SPJ4

6 0
2 years ago
If we were to continue to add more and more naoh from our original stock solution, what is the highest ph that could be reached?
Novay_Z [31]
If its a acid it will be 3 or if its a alkali then 14 or neutral then 7

7 0
3 years ago
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