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2 years ago

If the formula mass of one molecule is X amu, the molar mass is X g/mol. Group of answer choices True False

Chemistry

1 answer:

Irina-Kira [14]2 years ago

8 0

yes

Explanation:

the molar mass of a compound is g/mol

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What type of bonding occurs in a sample of pure copper, Cu? In other words, how is one copper atom held to another copper atom?

Aleonysh [2.5K]

B. metallic because copper is a metal

5 0

3 years ago

For this heterogeneous system 2 A ( aq ) + 3 B ( g ) + C ( l ) − ⇀ ↽ − 2 D ( s ) + 3 E ( g ) the concentrations and pressures at

maw [93]

Answer:

$2.55*10^{11$

Explanation:

Equation for the heterogeneous system is given as:

$2A_{(aq)} + 3 B_{(g)} + C_{(l)}$ ⇄ $2D_{(s)}$ $+$ $3E_{(g)}$

The concentrations and pressures at equilibrium are:

$[A] = 9.68*10^{-2}M$

$P_B = 9.54*10^3Pa$

$[C]=14.64M$

$[D]=10.11M$

$P_E=9.56*10^4torr$

If we convert both pressure into bar; we have:

$P_B = 9.54*10^3Pa$

$P_B = (9.54*10^3)*\frac{1}{10^5} bar$

$P_B=9.54*10^{-2}bar$

$P_E=9.56*10^4torr$

1 torr = 0.001333 bar

$9.54*10^4 *0.001333 = 127.5 bar$

$K=\frac{[P_E]^3}{[A]^2[P_B]^3}$

$K=\frac{(127.5)^3}{(9.68*10^{-2})^2(9.54*10^{-2})^3}$

$K=2.55*10^{11$

3 0

3 years ago

One mole of which substance contains a total of 6.02 x 1023 atoms? (I need help please.)

Korolek [52]

Answer:

Oxygen

Explanation:

One mole of atoms of oxygen has a mass of 16 g, as 16 is the atomic weight of oxygen, and contains 6.02 X 1023 atoms of oxygen.

8 0

2 years ago

How many moles of MgS2O3 are in 223 g of the compound

Alexxandr [17]

Moles of MgS2O3 = 223/molar mass of MgS2O3

= 223/136.42
= 1.634 moles.

Hope this helps!

6 0

3 years ago

Read 2 more answers

CO2(g)+H2O(1)= C18H32O16(s)+O2(g)

Alexus [3.1K]

Answer:

18 CO2 + 16 H2O = C18H32O16 + 18 O2

Explanation:

Reaction type: double replacement

Compound Coefficient Molar Mass

CO2 18 44.0095

H2O 16 18.01528

C18H32O16 1 504.43708

O2 18 31.9988

7 0

3 years ago