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3 years ago

9

Who was first president of kenya

2 answers:

Tpy6a [65]3 years ago

8 0

Answer: Jomo Kenyatta

Explanation:

thats who

Cerrena [4.2K]3 years ago

7 0

The first presedint of Kenya was Jomo Kenyatta

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What does the formula for table salt indicate about that compound?

IrinaVladis [17]

The formula is NaCl. this indicates that it has one sodium atom and one chlorine atom. it is an ionic compound, because it contains one metal and one nonmetal atom.

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3 years ago

A reaction produces .815 moles of H2O. How many molecules produces?

Vera_Pavlovna [14]

To find out the number of water molecules produced simply use Avogadro’s constant, where 1 mol of any compound is equal to 6.02 x 10^23 molecules of the substance.

Multiply 0.815 to this value.

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3 years ago

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The density of copper is 8.9 g/ml. How many Cm of copper are in 0.283kg of copper?

Natalka [10]

Solve from this pt on

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3 years ago

If a scientist has 24 grams of CH4, what is the theoretical yield of CO2 that can be produced?

klasskru [66]

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3 years ago

Suppose 550.mmol of electrons must be transported from one side of an electrochemical cell to another in 49.0 minutes. Calculate

nekit [7.7K]

Answer:

18.0 Ampere is the size of electric current that must flow.

Explanation:

Moles of electron , n = 550 mmol = 0.550 mol

1 mmol = 0.001 mol

Number of electrons = N

$N=N_A\times n$

Charge on N electrons : Q

$Q = N\times 1.602\times 10^{-19} C$

Duration of time charge allowed to pass = T = 49.0 min = 49.0 × 60 seconds

1 min = 60 seconds

Size of current : I

$I=\frac{Q}{T}=\frac{N\times 1.602\times 10^{-19} C}{49.0\times 60 seconds}$

$=\frac{n\times N_A\times 1.602\times 10^{-19} C}{49.0\times 60 seconds}$

$I=\frac{0.550 mol\times 6.022\times 10^{23} mol^{-1}\times 1.602\times 10^{-19} C}{49.0\times 60 seconds}=18.047 A\approx 18.0 A$

18.0 Ampere is the size of electric current that must flow.

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3 years ago