How does a new antibiotic kills pathogens without detectable resistance apply to agriculture?

1 answer:

5 0

For years, pathogens' resistance to antibiotics has put them one step ahead of researchers, which is causing a public health crisis, according to University Distinguished Professor Kim Lewis. But in new research, Lewis and his colleagues present a newly discovered antibiotic that eliminates pathogens without encountering any detectable resistance -- a finding that challenges long-held scientific beliefs and holds great promise for treating chronic infections like tuberculosis and those caused by MRSA.

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Maple syrup has a density of 1.325 g/ml, and 100.00 g of maple syrup contains 67 mg of calcium in the form of ca2+ ions. what is

e-lub [12.9K]

Density of maple syrup = 1.325 g/ml
1000 ml contains 1325 g of maple syrup
In 100 g of maple syrup - 67 mg of Ca ions
Therefore in 1325 g of maple syrup - 67 mg /100g * 1325 g
= 887.75 mg of Ca
this means in 1000 ml - 887.75 mg of Ca
molar mass of Ca - 40 g/mol
therefore number of moles in 1000 ml - 0.88775 g /40 g/mol
molarity of Ca - 0.022 mol/dm³

7 0

4 years ago

Read 2 more answers

What type of bond is formed when atoms share electrons?

navik [9.2K]

Covalent bond is formed when atoms share electrons.
Hope this helps you.

5 0

3 years ago

Plutonium−239 (t1/2 = 2.41 × 104 yr) represents a serious nuclear waste hazard. if seven half-lives are required to reach a tole

dimulka [17.4K]

The half-life of Plutonium−239, t1/2 is 2.41 × 10⁴ yrs

time taken to reach tolerable level = seven half-lives
= 7 x t1/2
= 7 x 2.41 × 10⁴ yrs
= 168700 yrs
= 1.687 x 10⁵ yrs

Hence, the period of time that Plutonium-239 must be stored is 1.687 x 10⁵ years.

5 0

3 years ago

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The metal content of iron in ores can be determined by a redox procedure in which the sample is first oxidized with Br2 to conve

coldgirl [10]

Answer:

80.27%

Explanation:

Let's consider the following balanced equation.

2 Fe³⁺(aq) + Sn²⁺(aq) ⇒ 2Fe²⁺(aq) + Sn⁴⁺(aq)

First, we have to calculate the moles of Sn²⁺ that react.

$\frac{0.1015molSn^{2+} }{1L} .13.28 \times 10^{-3} L=1.348\times 10^{-3}molSn^{2+}$