Jonathan used the following soil triangle to identify a sample of soil as sandy clay. Which description of soil likely allowed J
onathan to make this identification.
A. Mostly large grains, with a sticky texture, 55% sand, 40% clay, 5% silt.
B. Mostly large grains, with a gritty texture, 45% sand, 5% clay, 45% silt.
C. Mostly small grains, with a smooth texture, 30% sand, 5% clay, 65% silt.
D. Mostly small grains, with a sticky texture, 30% sand, 50% clay, 20% silt.
A. Mostly large grains, with a sticky texture, 55% sand, 40% clay, 5% silt.
B. Mostly large grains, with a gritty texture, 45% sand, 5% clay, 45% silt.
C. Mostly small grains, with a smooth texture, 30% sand, 5% clay, 65% silt.
D. Mostly small grains, with a sticky texture, 30% sand, 50% clay, 20% silt.
1 answer:
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The solubility equilibrium of :
[tex] CaCrO_{4}(aq)<===>Ca^{2+}(aq) + CrO_{4}^{2-}(aq)\\
Q_{sp}=[Ca^{2+}][CrO_{4}^{2-}]\\
= (0.0200 M)(0.0300 M) \\
= 0.0006
Ksp (0.00071) > Qsp (0.0006). So, <u>no precipitate would form</u>.