3 years ago

What do you need in order to measure the mass of water

Chemistry

1 answer:

zhuklara [117]3 years ago

3 0

Answer:a graduated cylinder

Explanation:

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Determine the volume (in liters) of a 87.8-9 sample of OF2 gas at 307 torr and 264°C.

expeople1 [14]

Answer:

V = 177.4 L.

Explanation:

Hello there!

In this case, since this gas can be assumed as ideal due to the given data, we can use the following equation:

$PV=nRT\\\\PV=\frac{m}{MM}RT$

Thus, by solving for volume we obtain:

$V=\frac{mRT}{MM*P}$

So we can plug in the temperature in Kelvins (537 K), the pressure in atmospheres (0.404 atm) and the molar mass (54 g/mol) to obtain:

$V=\frac{87.8g*0.08206\frac{atm*L}{mol*K}*537K}{54g/mol*0.404atm}\\\\V=177.4L$

Best regards!

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3 years ago

What mass of oxygen would form from 2.0 moles of water

kicyunya [14]

The reaction of the decomposition of water into oxygen gas and hydrogen is balanced as such:

$2H_{2} O -> 2H_{2} + O_{2}$

Using conversion factors, 2.0 mol H2O is equivalent to 1 mol O2, as per the reaction.

1 mol O2 is equivalent to 32g O2 (1 mol O2 * $\frac{32 g O2}{1molO2}$ )

Answer: 32 g of oxygen.

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3 years ago

How many particles of CH4 are present in a 8.25 L sample of this gas?

Snowcat [4.5K]

Is this a mole question

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If a patient is injected with 0.500 L of IV saline, what is the volume in quarts? (Given: 1 qt = 946 mL)

Andrei [34K]

Answer:

0.529 qts

Explanation:

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3 years ago

Read 2 more answers

HELP ME PLEASE. no links.

tatiyna

Answer:

Experimental group

Explanation:

i hopes this helps let me know if im wrong:)

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