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Black_prince [1.1K]
3 years ago
15

Put the steps of the scientific method into the correct order.

Chemistry
1 answer:
Butoxors [25]3 years ago
5 0

Answer:define propose devise state and then submit

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Hypernatremia due to excess water loss: A. Diabetes insipidus B. Dialysis fluid excess C. Hyperaldosteronism D. Older persons​
alex41 [277]

Answer:

Hypernantremia due to excess water loss

  • A. Diabetes insipidus

A rare disorder that causes the body to make too much urine

#Brainly

-Levi

5 0
2 years ago
Read 2 more answers
Calculate the quotient [co32–]/[hco3–] at ph 10.75.
KATRIN_1 [288]

The chemical equation is:

<span>HCO3^    ->  H^+ + CO3^2- </span>

 

We know that the formula for Ka is:
Ka = [H^+][CO3^2-]/[HCO3^-] 


log Ka = log[H^+] + log[CO3^2-]/[HCO3^-] 
pKa = pH - log[CO3^2-]/[HCO3^-] 
log[CO3^2-]/[HCO3^-] = pH - pKa = 10.75 - 10.329 = 0.421 
<span>[CO3^2-]/[HCO3^-] = Antilog (0.421)  = 2.636 </span>

 

Answer:

<span>2.636</span>

3 0
3 years ago
An element which forms an oxide that dissolves in water to form an acidic solution.
zzz [600]

Answer:

An Alkaline solution should be the answer to that.

8 0
3 years ago
Atmospheric pressure yesterday was given as 0.875 atm. Express this pressure in units of torr and also in kilopascals (kPa), res
Aneli [31]
This problem is about conversion and dimensional analysis. Important information to know:
 1 atm = 760 torr = 101.325 kPa

For atm to torr conversion:

0.875 atm * (760 torr / 1 atm) = 665 torr

For atm to kPa conversion:

0.875 atm * (101.325 kPa / atm) = 88.7 kPa

Thus the answer is b) 665 torr and 88.7 kPa
5 0
3 years ago
a 200 mL aqueous solution of ammonia has a concentration of 1.50 M. What mass of ammonia is dissolved in the solution?
sukhopar [10]

Answer: 51 grams

Explanation:

Ammonia is a gas with a chemical formula of NH3.

Given that,

Amount of moles of NH3 (n) = ?

Volume of NH3 (v) = 200mL

since the standard unit of volume is liters, convert 200mL to liters

(If 1000mL = 1L

200mL = 200/1000 = 0.2L)

Concentration of NH3 (c) = 1.5M

Since concentration (c) is obtained by dividing the amount of solute dissolved by the volume of solvent, hence

c = n / v

Make n the subject formula

n = c x v

n = 1.50M x 0.2L

n = 3 moles

Now, calculate the mass of ammonia

Amount of moles of NH3 (n) = 3

Mass of NH3 in grams = ?

For molar mass of NH3, use the atomic masses:

N = 14g; H = 1g

NH3 = 14g + (1g x 3)

= 14g + 3g

= 17g/mol

Since, n = mass in grams / molar mass

3 moles = m / 17g/mol

m = 3 moles x 17g/mol

m = 51 grams

Thus, 51 grams of ammonia was dissolved in the solution.

5 0
3 years ago
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