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NeX [460]
3 years ago
10

which tool was mostly likely used in a procedure if the lab report shows that approximately 300 ml of water was used

Chemistry
1 answer:
DiKsa [7]3 years ago
7 0

it is most likely a beaker, beacuse 300ml is quite a large volume. Otherwise, it would be a measuring cylinder or pippette

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Respuesta funcion oxido de Mg+2 + O-2
Effectus [21]

Answer:

Mg2 + O2 → 2MgO

Explanation:

Hope this helps!! I got it right.

7 0
2 years ago
A mixture contains NaHCO3 together with unreactive components. A 1.75 g sample of the mixture reacts with HA to produce 0.561 g
Lynna [10]

Answer:

\%NaHCO_3=61.2\%

Explanation:

Hello.

In this case, since the undergoing chemical reaction is only between the sodium bicarbonate and the acid HA:

NaHCO_3+HA\rightarrow NaA+H_2O+CO_2

For 0.561 g of yielded carbon dioxide (molar mass 44 g/mol), the following mass of sodium bicarbonate (molar mass 84 g/mol) that reacted was:

m_{NaHCO_3}=0.561gCO_2*\frac{1molCO_2}{44gCO_2} *\frac{1molNaHCO_3}{1molCO_2} *\frac{84gNaHCO_3}{1molNaHCO_3} \\\\m_{NaHCO_3}=1.071g

Considering the 1:1 mole ratio between CO2 and NaHCO3. Finally, the percent by mass of NaHCO3 is computed by dividing the mass of reacted NaHCO3 and t the mixture:

\%NaHCO_3=\frac{1.071g}{1.75g}*100\%\\ \\\%NaHCO_3=61.2\%

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5 0
3 years ago
At a fixed volume, a four-fold increase in the temperature of a gas will lead to _______ in pressure.
aliina [53]

Answer:

Increase in pressure

Explanation:

The rise in temperature will increase the pressure of the gas.

6 0
3 years ago
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4 0
3 years ago
A boy fell off a 100 foot ladder. But he did not get hurt. Why not?
Alona [7]
He was not all the way up the ladder he was only on the first couple steps
7 0
3 years ago
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