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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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B obviously not a or c so if it aint b its D
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Magnesium and nitrogen react to form magnesium nitrate. Which of the following expressions represents this chemical reaction?
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Explain why an insoluble compound added to water is considered a nonelectrolyte.
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Explanation:

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As electricity is the flow of ions or electrons. So, a non-electrolyte solution is not able to conduct electricity.

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A galvanic cell consists of a Cu(s)|Cu2+(aq) half-cell and a Cd(s)|Cd2+(aq) half-cell connected by a salt bridge. Oxidation occu
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Answer:

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As it is given that cadmium acts as anode, it must be on the left hand side and copper must be on right hand side.

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6 0
3 years ago
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Explanation:

The reaction equation will be as follows.

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             CO_{2}(aq) = K_{CO_{2}} \times P_{CO_{2}}

It is given that K_{CO_{2}} = 0.032 M/atm and P_{CO_{2}} = 1.9 \times 10^{-4} atm.

Hence, [CO_{2}] will be calculated as follows.

           [CO_{2}] = K_{CO_{2}} \times P_{CO_{2}}          

                           = 0.032 M/atm \times 1.9 \times 10^{-4}atm

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As,      K_{a} = \frac{[H^{+}]^{2}}{[CO_{2}]}

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So,                      pH = -log (1.64 \times 10^{-6})

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Therefore, we can conclude that pH of water in equilibrium with the atmosphere is 5.7.

3 0
3 years ago
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