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4 years ago

3.0 cm x 4.0 cm x 1.0 cm[?]cm^3

Chemistry

1 answer:

CaHeK987 [17]4 years ago

4 0

Explanation:

Hi there!!

you asked to multiply these all right,

you can simply multiply it ,

=3cm × 4 cm × 1cm

= 12cm^2×1cm (4×3=12)

= 12cm^3 (12×1=12)

Therefore, theanswer is 12 cm^3.

Hope it helps..

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A compound contains 39.0% potassium, 1.01% hydrogen, 12.0% carbon and 47.9% oxygen. Find its empirical formula

Ipatiy [6.2K]

Answer:

Empirical formula is KHO₃C.

Explanation:

Given data:

Percentage of potassium = 39.0%

Percentage of hydrogen = 1.01%

Percentage of carbon = 12.0%

Percentage of oxygen = 47.9%

Empirical formula = ?

Solution:

Number of gram atoms of K = 39.0/ 39 = 1

Number of gram atoms of H = 1.01 / 1.01 = 1

Number of gram atoms of O = 47.9 / 16 = 3

Number of gram atoms of C = 12 / 12 = 1

Atomic ratio:

K : H : O : C

1/1 : 1/1 : 3/1 ; 1/1

1 : 1 : 3 : 1

K : H : O :C = 1: 1 : 3 : 1

Empirical formula is KHO₃C.

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3.0 cm x 4.0 cm x 1.0 cm[?]cm^3​

3.0 cm x 4.0 cm x 1.0 cm[?]cm^3