NO2 is a covalent compound
Answer:
359.3g of Na₂CO₃ are required
Explanation:
When sodium carbonate, Na₂CO₃ reacts with HCl, NaCl and H₂O are produced as follows:
Na₂CO₃ + 2HCl → 2NaCl + CO₂ + H₂O
<em>Where 1 mole of sodium carbonate produce 2 moles of NaCl</em>
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To solve this question, we must find the moles of sodium carbonate required to produce the 6.78 moles of NaCl. With this mass and the molar mass we can find the mass of sodium carbonate as follows:
<em>Moles Na₂CO₃:</em>
6.78 moles NaCl * (1mol Na₂CO₃ / 2mol NaCl) = 3.39 moles Na₂CO₃
<em>Mass Na₂CO₃ -Molar mass: 105.99g/mol:</em>
3.39 moles Na₂CO₃ * (105.99g / mol) =
<h3>359.3g of Na₂CO₃ are required</h3>
Answer:
According to Boyle's Law, an inverse relationship exists between pressure and volume. Boyle's Law holds true only if the number of molecules (n) and the temperature (T) are both constant.
Answer:
= 0.551J/(g°C)
Explanation:
Specific heat is the amount of heat to required to raise the temperature of 1 gram substance to 1° C
The formula
C = q / m × ΔT ______ (1)
where ,
C = specific heat
q = heat
m = mass
ΔT = change in temperature
mass of the stainless steel is m = 1.55g
heat of the stainless steel is q = 141 J
the change in temperature is ΔT = 178°C
substitute all the value in the equation (1)
In the Terrestrial ecosystem, examples might include the following such as tempature, light and water. In the Ocean Ecosystem, abiotic factors would include salinity and ocean currents
