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GarryVolchara [31]
3 years ago
6

What is the pH of a solution with a 2.20 x 10-8 M hydroxide ion concentration

Chemistry
1 answer:
marishachu [46]3 years ago
5 0

Answer:

1. 6.34.

Explanation:

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The specific heat of gold is 0.031 calories/gram°C. If 10.0 grams of gold were heated and the temperature of the sample
IgorLugansk [536]

Answer:

6.2 calories

Explanation:

Data Given:

change in temperature = 20 °C

specific heat of gold = 0.031 calories/gram °C

mass of gold = 10.0 grams

Amount of Heat = ?

Solution:

Formula used

             Q = Cs.m.ΔT

Where:

Q = amount of heat

Cs = specific heat of gold = 0.031 calories/gram °C

m = mass

ΔT = Change in temperature

Put values in above equation

                Q = 0.031 calories/gram °C x 10.0 g x 20 °C

                Q = 6.2 calories

So option A is correct = 6.2 calories

6 0
3 years ago
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Explanation:

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8 0
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Which factor plays the biggest role in delaying the detection of childhood<br> diseases?
Maru [420]

Answer:

poor access to health care providers

Explanation:

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4 years ago
Example of false solutions and true solutions <br>​
Kamila [148]

Answer:

answer in expl.

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true eg. - we live in earth

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The law of reflection states that the angle of incidence and the angle of reflection are always
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The law of reflection states that the angle of incidence and the angle of reflection are always equal.

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