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Tcecarenko [31]
3 years ago
11

How many moles of CO2 are produced from 15.6 g of NaHCO3?

Chemistry
1 answer:
mars1129 [50]3 years ago
5 0

Answer:

0.185moles

Explanation:

1mole of bicarbonate produces 1mole of CO2

so 0.185 mole produces 0.185 moles of CO2

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Work out the volume of 0.1 moles of chlorine gas at room temperature and pressure.
Lilit [14]

Volume of gas at room temperature = number of moles x 24 dm^3

Volume = 0.1 moles x 24 dm^3

Volume = 2.4 dm^3  (or 2400 cm^3)

5 0
4 years ago
In a certain compound of iron and oxygen, FexOy, it is found that a sample of this compound weighing 6.285 g contains 4.396 g of
saveliy_v [14]

Answer:

Formula of oxide is Fe_{2}O_{3}

Explanation:

The given compound consists of Fe and O.

So, mass of oxygen in sample = (mass of sample) - (mass of Fe in sample)

                                                   = (6.285 g ) - (4.396 g)

                                                   = 1.889 g

Molar mass of O = 16 g/mol and molar mass of Fe = 55.845 g/mol

So, ratio of number of moles of Fe and O (Fe : O)

      = \frac{4.396}{55.845}:\frac{1.889}{16}

      = 0.0787 : 0.118

      = 1:\frac{0.118}{0.0787}

      = 1 : 1.5

      = 2 : 3

So, formula of oxide is Fe_{2}O_{3}

5 0
3 years ago
Need help asap - There is an error in the rate-determining step of the following proposed mechanism.
sdas [7]

Answer:

CH4(g) + Cl2(g) → CH3(g) + HCl(g) and the rate rule is k1 = [CH4][Cl2]

Explanation:

Firstly, we must remember that the substitution reaction between halogens and alkanes to yield halogenoalkanes does not proceed by ionic mechanism rather it proceeds by free radical mechanism.

Now, if we look at the rate determining step as shown in the question, the elementary reaction equation of that step is not balanced.

Hence, the correct elementary reaction equation for the rate determining step and the rate law is; CH4(g) + Cl2(g) → CH3(g) + HCl(g) and the rate rule is k1 = [CH4][Cl2]

5 0
3 years ago
What type of cleaner is appropriate for grease that has built up on appliances?
evablogger [386]
Baking soda and dish soap! youre welcome

6 0
4 years ago
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Is the following sentence true or false carbon atoms can only form a single bond between other carbon atomd?
Norma-Jean [14]
Carbon atom has 4 valence electron and can form 4 bonds with carbon and other atoms and it can also form single, double and triple bond with other carbon atoms.
So, the statement is false.
7 0
4 years ago
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