3 years ago

Mghso4.5h2O name and molar mass

Chemistry

1 answer:

Usimov [2.4K]3 years ago

8 0

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Which statement regarding liquids is true? 1.can be converted to solids by adding energy in the form of heat 2.occupy a definite

GuDViN [60]

Answer:

4.occupy a definite volume while taking the shape of their container.

Explanation:

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3 years ago

An isotope of carbon has 6 protons and 8 neutrons. What is the atomic mass of this element?

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Explanation:

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2 years ago

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3 years ago

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The fact that HBO2, a reactive compound, was produced rather than the relatively inert B2O3 was a factor in the discontinuation

Reil [10]

Answer:

1027.62 g

Explanation:

For $B_2H_6$ :-

Mass of $B_2H_6$ = 296.1 g

Molar mass of $B_2H_6$ = 27.66 g/mol

The formula for the calculation of moles is shown below:

$moles = \frac{Mass\ taken}{Molar\ mass}$

Thus,

$Moles= \frac{296.1\ g}{27.66\ g/mol}$

$Moles\ of\ B_2H_6= 10.705\ mol$

From the balanced reaction:-

$B_2H_6(g) + 3 O2_{(l)}\rightarrow 2 HBO_2_{(g)}+ 2 H_2O_{(l)}$

1 mole of $B_2H_6$ react with 3 moles of oxygen

Thus,

10.705 mole of $B_2H_6$ react with 3*10.705 moles of oxygen

Moles of oxygen = 32.115 moles

Molar mass of oxygen gas = 31.998 g/mol

<u>Mass = Moles * Molar mass = 32.115 * 31.998 g = 1027.62 g</u>

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3 years ago

the mass of a 125 cm3 piece of material is 82.75 g. determine the density of this material . please explain

andre [41]

You would do 82.75 divided by 125 cm3 and get 0.6620 g/cm3 because to find density you mist divide mass and volume and grams is always mass and cm3 or mL is always volume. hope i helped!

6 0

3 years ago