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Paha777 [63]
3 years ago
13

Al2(CrO4)3 percentage of Al

Chemistry
1 answer:
jenyasd209 [6]3 years ago
7 0

Answer:

13.4%

Explanation:

Take the molar mass (26.98) of Al x 2 because there are 2 moles in the given compound. Divide this number by the total molar mass of the compound (401.9) this gives you .134. To get a percentage mulitply by 100 for 13.4%.

[(26.98 x 2)/401.9] x 100 =13.4

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Human reproduction involves eggs, ovaries, sperm, and testes.
Diano4ka-milaya [45]

Answer:

A. Eggs and sperm

Explanation:

Genres are an organisms reproductive cells. Also referred to as sex cells. Females they are ova or egg cells, and males they are sperm.

5 0
3 years ago
Draw an arrow-pushing mechanism for the elimination reaction between NaOH in ethanol and each of the following haloalkanes: (E1/
Komok [63]

Answer:

The mechanisms for the elimination reactions between NaOH in ethanol and the halogenoalkanes are demonstrated in the figure attached.

Explanation:

(i) 1-bromobutane will suffer elimination to for an alkene. The mechanism will be E2, which means that the attack and the elimination will occur simultaneously. This is the preferred mechanism because the bromine is in a primary carbon.

(ii) 2-bromo-2-methylpentane will suffer elimination to for an alkene. The mechanism will be E1, which means that the attack and the elimination will occur in two different steps. The bromine will be eliminated in the first step with the formation of a carbocation and in a second step the double bond will be formed after the anionic attack. This is the preferred mechanism because the bromine is in a terciary carbon which is able to stabilize the carbocation formed.

7 0
3 years ago
Double displacement reaction - write the balanced conventional, total ionic and net ionic equations: Ca I2 + K2 C2 O4
OLEGan [10]

Answer:

See explanation

Explanation:

Double displacement reaction is a reaction in which the cations in the reactants side exchange partners on the product  side

The molecular equation here is;

CaI2(aq) + K2C2O4(aq) --------->CaC2O4(s) + 2KI(aq)

General ionic equation;

Ca^2+(aq) + 2I^-(aq) + 2K^+(aq) + C2O4^2-(aq) -------> CaC2O4(s) +  2I^-(aq) +

2K^+(aq)

Net ionic equation;

Ca^2+(aq) +  C2O4^2-(aq) ------> CaC2O4(s)

3 0
3 years ago
Choose the solvent below that would show the greatest boiling point elevation when used to make a 0.10 m nonelectrolyte solution
svlad2 [7]

Answer:

carbon tetrachloride has the greatest boiling point elevation.

Explanation:

6 0
4 years ago
Please show steps Thanks
Llana [10]

Answer:

2.5M

Explanation:

First calculate the gram-formula mass of CaCO3 (add up the mass of each element in the compound)

40.1 + 12.01 + 16(3) = 100.11

Now use the mole calculation equation on Table T and plug in the numbers

(Keep in mind that 25 is the given mass)

25/100.11 = 2.497 or 2.5M

8 0
2 years ago
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