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2 years ago

Calculate the percent covalent character of a chemical bond between iodine and lithium.

Chemistry

1 answer:

raketka [301]2 years ago

3 0

Answer:

27966692

Explanation:

I don't know if this is right or not

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How many grams of CO2 could be formed with 2.09 x 1023 atoms of O?

choli [55]

Answer:

r u in high school this is hard

Explanation:

6 0

3 years ago

slader An experiment is carried out where 13.9 g of solid NaOH is dissolved in 250.0 g of water in a coffee-cup calorimeter. Dis

kvv77 [185]

Answer:

The mass of the surrounding is $M_t = 263.9 \ g$

Explanation:

From the question we are told that

The mass of $NaOH$ is $m = 13.9 \ g$

The mass of water is $m_w = 250.0g$

The chemical equation for the dissociation process is

$NaOH _{(s) } ---> Na^{+}_{(aq)} + OH^{-} _{(aq)}$

The specific heat capacity of the mixture is $c_p = 4.18 J g^{-1} C^{-1}$

The combined mass of the solution is

$M_t = 13 + 250$

$M_t = 263.9 \ g$

The mass of the surround here is the mass of the coffee-cup calorimeter and this contain the mixture ( water and the NaOH ) so the mass of the surrounding is

$M_t = 263.9 \ g$

3 0

3 years ago

How many moles of copper are present in a sample that contains 4.55 x 10^24 atoms of copper

FinnZ [79.3K]

Hope you could understand.

If you have any query, feel free to ask.

3 0

2 years ago

Kipish [7]

Answer:

11 proton and 12 neutron

11 electrons

Explanation:

3 0

3 years ago

Assume the atmospheric pressure is 1 atm but the actual pressure is higher than 1 atm how will this error affect the calculated

ozzi

Answer : When we consider the atmospheric pressure as 1 atm then according to the ideal gas equation we can find out the molar mass of any unknown by this formula ;

PV=nRT

so if the pressure increases than 1 atm then we can see from the above equation that it will result in greater value for the number of moles (n) in the above equation.

While n = m/M where m is mass of the unknown in g and M is molecular mass.

So, if pressure is higher then it will result in molar mass of unknown which is much smaller.

6 0

3 years ago