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muminat
3 years ago
9

A pharmacist measures the mass of a powdered drug. The mass is 506 mg . What is the mass in grams? Write your answer as a decima

l.
Chemistry
1 answer:
otez555 [7]3 years ago
8 0

Answer:

0.506 g

Explanation:

we know that one miligram is equal to 0.001 g or we can say that  one gram contain thousand miligram. so,

if the mass of drug is 506 mg then to convert it into gram we have to divide 506 mg into 1000.  

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An 18 liter container holds 16.00 grams of oxygen gas (o2 at 45 °c. what is the pressure in the container?
Scrat [10]
Hello!

The pressure of an 18 L container which holds 16,00 grams of oxygen gas (O₂) at 45 °C is 0,725 atm

To solve this problem we first need to set up the data in the appropriate units to input it in the Ideal Gas Law.

a) 16 g of Oxygen gas to moles of oxygen gas:

16gO_2* \frac{1 mol O_2}{32gO_2}=0,5 mol O_2

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4 0
2 years ago
How many mols of K+ ions in 1.75 mol of K2SO4
olganol [36]

Answer:

3.5 mol K^+

Explanation:

Hello there!

In this case, since the mole-mole rations consider the amount of the specific ion in the whole compound, we can evidence that the potassium sulfate has two potassium ions in the molecule; in other words, there is a 1:2 mole ratio of the former to the latter; in such a way, we can perform the following proportional factor:

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4 0
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Answer:

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