All categories

2 years ago

What is the mass of 1.72 moles of BaSO4?

Chemistry

1 answer:

Fiesta28 [93]2 years ago

3 0

Answer: 401.4g

Explanation:

The mass can be calculated by using the following mathematical expression for Moles ,which is:

Moles = Mass / Molar Mass

From the question given, Moles = 1.72, Molar mass of BaSO4 = 233.38g/mol, Mass =?

Making 'Mass' the subject of formula, we get:

Mass = Molar mass x Moles

= 233.38 x 1.72 = 401.4g

You might be interested in

Can someone help me please

Anika [276]

Answer:

Explanation:

Snss

4 0

2 years ago

Read 2 more answers

For an enzymatically catalyzed reaction in which the measured values for KM and Vmax are, respectively, 10.0 mM and 0.172 mM min

abruzzese [7]

Answer:

17.2 minutes is the value of the turnover number.

Explanation:

Using Michaelis-Menten equation:

$V = V_{max}\times \frac{[S]}{ (Km + [S])}$

$V_{max }=k_{cat}\times E_o$

Where :

$V_{max}$ = max rate velocity

[S] = substrate concentration

$K_m$ = Michaelis-Menten constant

V = reaction rate

$k_{cat}$ = catalytic rate constant

$E_o$ = initial enzyme concentration

We have :

$K_m=10.0mM$

$E_o=10.0\mu M=10.0\times 0.001 mM$

$V_{max}=0.172 mM/min$

$V_{max}$ is the rate is obtained when all enzyme is bonded to the substrate. $k_{cat}$ is termed as the turnover number.

$k_{cat}=\frac{V_{max}}{E_o}=\frac{0.172 mM}{10.0\times 0.001 mM}$

$=17.2 minutes$

17.2 minutes is the value of the turnover number.

3 0

3 years ago

Based on the kinetic molecular theory (KMT), which statement is true?

nataly862011 [7]

Statement 1 is false because heat is the movement of molecules.

Statement 2 is true because matter is composed of elementary particles which are VERY small.

Statement 3 is false because the kinetic energy of a particle determines its heat and it is impossible for a particle to be completely motionless.

Statement 4 is false because neutrons do not have a charge and make up a large portion of all matter.

5 0

2 years ago

Runoff from agricultural land carries chemicals from fertilizers that collect in a lake. The buildup of chemicals can eventually

bagirrra123 [75]

Answer:

what are the roles of minerals in maintaning homeostasis?

5 0

2 years ago

the amount of pollution produced by cars was measured for cars using gasoline containing different amounts of lead. what is the

natulia [17]

Independent: Gasoline with different amounts of lead
Dependent: Amount of pollution produced

4 0

2 years ago