What is the ionic name for NaIO4?

Sphinxa [80]

Answer:

Inactive metals are inert metals that doesn’t react with most of the chemicals.They are highly resistant to oxidation and corrosion when exposed to moisture.

Explanation:

7 0

3 years ago

sa solution is made by dissolving 26.42 g of (NH4)2SO4 in enough H2O to make 50.00 mL of solution. what is the molarity of the s

krok68 [10]

The answer is 0.2 M.

Molarity is a measure of the concentration of solute in a solution

c = n ÷V<span>
c - concentration of solute,
n - number of moles of solute
V - volume of solution

</span>

We know:

V = 50.00 mL = 0.05 L

c = ?

n = ?

Let's calculate concentration:

c = m/(V * Mr)

The molar mass of <span>(NH4)2SO4 is the sum of atomic masses (Ar) of its elements):
Mr (</span><span>(NH4)2SO4) = 2Ar(N) + 8 Ar(H) + Ar(S) + 4Ar(O)
= 2 * 14 + 8 * 1 + 32 + 4 * 16 =
= 28 + 8 + 32 + 64 =
= 132 g/mol

c = 26.42 g/ (0.05 L * 132g /mol) =26.42 g/ 6.6 L*g/mol = 4 mol/L = 4 M

Now, calculate molarity:
</span>c = n ÷V
n = c * V
n = 4 mol/L * 0.05 L
n = 0.2 mol

4 0

4 years ago

A container has a volume of 5.43 L and a pressure of 7.97 atm. If the pressure changes to 2.32

Novosadov [1.4K]

<h3>Answer:</h3>

18.65 L

<h3>Explanation:</h3>

We are given;

Initial volume of the container, V1 as 5.43 L
Initial pressure of the container, P1 as 7.97 atm
New pressure, P2 is 2.32 atm

We are required to calculate the container's new volume;

We are going to use Boyle's law

According to Boyle's law the volume of a fixed mass of a gas and the pressure are inversely proportional at a constant absolute temperature.
That is; $P\alpha \frac{1}{V}$

At varying pressure and volume at constant temperature, k is the constant.
Therefore; $P1V1=P2V2$

Rearranging the formula;

$V2=\frac{P1V1}{P2}$

$V2=\frac{(7.97atm)(5.43L)}{2.32atm}$

$V2=18.654$

Therefore, the new volume will be 18.65 L

3 0

3 years ago

Water enters a 4.00-m3 tank at a rate of 6.33 kg/s and is withdrawn at a rate of 3.25 kg/s. The tank is initially half full.

Naya [18.7K]

Explanation:

The given data is as follows.

Volume of tank = 4 $m^{3}$

Density of water = 1000 $kg/m^{3}$

Since, the tank is initially half-filled. Hence, the volume of water in the tank is calculated as follows.

$\frac{1}{2} \times 4 = 2 m^{3}$

Also, density of a substance is equal to its mass divided by its volume. Therefore, initially mass of water in the tank is as follows.

Mass = $Density \times initial volume$

= $1000 \times 2$

= 2000 kg

Whereas mass of water in tank when it is full is as follows.

Mass = $Density \times final volume$

= $1000 \times 4$

= 4000 kg

So, net mass of the fluid to be filled is as follows.

Net mass to be filled = Final mass - initial mass

= 4000 kg - 2000 kg

= 2000 kg

Mass flow rate $(m_{in})$ = 6.33 kg/s

Mass flow rate $(m_{out})$ = 3.25 kg/s

Time needed to fill tank = $\frac{\text{net mass to be filled}}{\text{net difference of flow rates}}$

= $\frac{2000 kg}{m_{in} - m_{out}}$

= $\frac{2000 kg}{6.33 kg/s - 3.25 kg/s}$

= 649.35 sec

Thus, we can conclude that 649.35 sec is taken by the tank to overflow.

5 0

3 years ago

Do the elements in group 7 of the periodic table react with metals to form covalent compounds, ionic compounds, neither, or both

Vladimir [108]

Answer:Group 1 elements have 1 valence electron, meaning they have 1 extra electron that can easily be donated to an atom in search of 1 more electron. When they give away that extra electron to form an ionic compound, they become more stable.

For example, Group 7A (Group 17) elements have 7 valence electrons, meaning they need 1 extra electron to be stable. Group 1 and 7A elements make splendid ionic compounds.

Explanation:

7 0

2 years ago