200 million because of you the largest states count as 100
Answer:
The volume is 3.96 dL
Explanation:
<u>Step 1: Convert ml to dl</u>
1Liter = 1000ml = 10³ ml
1Liter = 10 dl
⇒ 1 Liter has 1000ml or 10 dl
⇒ The ratio can be written as : 10dl/ 1000ml = 1 dl / 100ml
<u>Step 2: Convert cm³ </u>=
⇒ 1cm³ is equal to 1 ml.
<u>Step 3: Calculate volume</u>
⇒ We use the formule of density here, which is : Density (p) = mass (g) / volume( cm³)
⇒ 7.86 g/ cm³ = 3110 grams / Volume ( cm³)
⇒Volume = 3110 grams / 7.86g/cm³ = 395.67 cm³
395.67 cm³ = 395.67 ml = 0.39567 L = 3.96 dL
3.96 dL is reported to three significant digits due to the precision reported for the density.
Answer: I'm going to guess and say it is h2 or o2 I am not sure.
Explanation:
Answer:
Mass of Rb-87 is 86.913 amu.
Explanation:
Given data:
Average mass of rubidium = 85.4678 amu
Mass of Rb-85 = 84.9117
Ratio of 85Rb/87Rb in natural rubidium = 2.591
Mass of Rb = ?
Solution:
The ration of both isotope is 2.591 to 1. Which means that for 2.591 atoms of Rb-85 there is one Rb-87.
For 100% naturally occurring Rb = 2.591 + 1 = 3.591
% abundance of Rb-85 = 2.591/ 3.591 = 0.722
% abundance of Rb-87 = 1 - 0.722= 0.278
84.9117 × 0.722 + X × 0.278 = 85.4678
61.306 + X × 0.278 = 85.4678
X × 0.278 = 85.4678 - 61.306
X × 0.278 = 24.1618
X = 24.1618 / 0.278
X = 86.913 amu
Answer:
a star is like the sun a burning ball of gas that gives light to the outer space.
Explanation:
