Chemistry, 15.04.2021 14:00 scheyennekreger
4. For the analysis by the ARC of a soil sample as seen on page 3, certain
steps/processes must be adhere to when taking the soil sample Discuss these
steps/processes to ensure that a representative soil sample is taken
5. Using the information on page 3, which nutrients will be least available in soil sample
10719 and which nutrients will also be affected in sample 10720
(Hint - the pH is important/ Figure 4)
(10
6. The recommendation from the ARC is to add 3:2:1 fertilizer during planting time
PLANTFOOD
N:P:K
NITROGEN
N
FERTILIZER
PHOSPHORUS
P-
3:2:1 (22)
POTASSIUM
1
50 kg
Use the information above to calculate the amount of each nutrient available in t
mixture as indicated above in 100kg of the fertilizer
(10)
Total:
[50]
Answers: 2
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One mole of zinc has a mass of 65.4 grams. approximately how many atoms of zinc are present in one mole of zinc? 32 × 1023 atoms 6 × 1023 atoms 66 atoms 65 atoms
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What happens to the temperature of a substance when the average kinetic energy of its particles increases?
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Scientists are often interested in knowing the molar heat of combustion – the heat released during the combustion of one mole of a substance. use the periodic table to find molar masses. how many moles of ethanol are present in the sample?
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4. For the analysis by the ARC of a soil sample as seen on page 3, certain
steps/processes must be...
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