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2 years ago

The density of a substance having a mass of 9 x 10^5 g and a volume of 3 x 10^-1 cm3 is

Chemistry

1 answer:

Marina86 [1]2 years ago

8 0

Answer:

Explanation:

The density of a substance can be found by using the formula

$density = \frac{mass}{volume} \\$

From the question we have

$density = \frac{9 \times {10}^{5} }{3 \times {10}^{ - 1} } \\$

We have the final answer as

Hope this helps you

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A compound is determined to have the empirical formula C2OH4. If the molar mass of the compound is 132 g/mol, determine the mole

8_murik_8 [283]

Answer: The molecular formula will be $C_6O_3H_{12}$

Explanation:

Molecular formula is the chemical formula which depicts the actual number of atoms of each element present in the compound.

Empirical formula is the simplest chemical formula which depicts the whole number of atoms of each element present in the compound.

Empirical weight of $C_2OH_{4}$ is $12\times 2+16\times 1+1\times 4=44g$

Molecular mass of compound is = 132 g

Now we have to calculate the molecular formula.

$n=\frac{\text{Molecular weight}}{\text{Equivalent weight}}=\frac{132}{44}=3$

The molecular formula will be= $3\times C_2OH_4=C_6O_3H_{12}$

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3 years ago

Which of the following traits are inherited from parents when the genetic material found in genes is passed to offspring on the

Advocard [28]

I believe it is B. I’m sorry if i’m wrong. Tell me if i’m wrong or right!

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2 years ago

The Michaelis–Menten equation is an expression of the relationship between the initial velocity ????0 of an enzymatic reaction a

hammer [34]

1 doubling s will almost double the rate

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3 years ago

What is the number of moles in 432 g Ba(NO3)2? A. 0.237 mol B. 0.605 mol C. 1.65 mol D. 3.66 mol

Montano1993 [528]

Answer:

Explanation:

Since Moles=mass/molar mass

Mass=432g

Molar mass=261g/mol

Moles=1.65mol

6 0

2 years ago

It is found when an unknown solid solute is dissolved in water that the solubility of the solid increases if temperature is decr

mina [271]

Answer:

exothermic entropy is increased

Explanation:

An exothermic process is one whose rate increases when the temperature is decreased. Hence if a decrease in temperature favours the dissolution of more solute at equilibrium, then the process is exothermic.

Similarly, the dissolution of a solute in a solvent increases the disorderliness (entropy) of the system because of the increase in the number of particles present. Hence once a solute in dissolved, the entropy of the system increases.

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2 years ago