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UNO [17]
3 years ago
11

Using the information provided in the chart determine which of these would have the highest pOH level? A) urine B) toothpaste C)

rainwater D) household ammoni
Chemistry
1 answer:
gizmo_the_mogwai [7]3 years ago
5 0

Answer:

The answer is urine (A)

Explanation:

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What is the pH of a solution with a concentration of 7.6 × 10–7 M H3O+?
Setler [38]

Answer:

Ph = 6.12....

here ya go

Explanation:

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7 0
3 years ago
Which of the following shows a valid combustion reaction?
marta [7]

Answer:   C2H4 + 3O2 → 2CO2 + 2H2O

Explanation:

2Al + 2O2 → 2AlO + O2            Not Balanced Properly:  2Al + O2 = 2AlO  

C2H4 + 3O2 → 2CO2 + 2H2O  Looks Good

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3 0
2 years ago
Read 2 more answers
To determine the concentration of chloride ion (Cl-) in a 100 mL sample of ground water, a chemist adds a large enough volume of
Orlov [11]

Answer:

[Cl^-]=232.3\frac{mgCl^-}{L}

Explanation:

Hello,

In this case, we can represent the chemical reaction as:

Cl^-(aq)+AgNO_3(aq)\rightarrow AgCl(s)+NO_3^-(aq)

In such a way, since the mass of the obtained silver chloride is 93.9 mg, we can compute the chloride ions in the ground water by using the following stoichiometric procedure whereas the molar mass of chloride ions and silver chloride are 35.45 g/mol and 143.32 g/mol respectively:

m_{Cl^-}=93.3mgAgCl*\frac{1mmolAgCl}{143.32mgAgCl}*\frac{1mmolCl^-}{1mmolAgCl} *\frac{35.45mgCl^-}{1mmolCl^-} =23.23mgCl^-

Finally, for the given volume of water in liters (0.100L), we compute the required concentration:

[Cl^-]=\frac{23.2mgCl^-}{0.100L}\\

[Cl^-]=232.3\frac{mgCl^-}{L}

Best regards.

5 0
4 years ago
What best describes the goals of scientific investigation and technological development?
bekas [8.4K]
Hi! I think the answer is option B. I hope
this helps, Goodluck :)
5 0
3 years ago
What will Knowledge of chemistry enable you to do ?
vekshin1
The knowledge will help me in:
<span>- explain the natural world, specifically the interaction between substance that caused an occurrence within our environment
- career opportunities, because all company that produce consumable products will need a profound knowledge in chemistry
- informed citizens, so i could make a better decision for my own health</span>
3 0
4 years ago
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