Answer:
Explanation:
We are asked to find the density of a metal. Density is the mass per unit volume. It is calculated by dividing the mass by the volume.
The mass of the metal sample is 24.64 grams and the volume is 5.91 milliliters. We can substitute these values into the formula.
Divide.
The mass measurement has 4 significant figures the volume measurement has 3 significant figures. Our answer for density must match the least number of significant figures, which is 3.
For the number we calculated, that is the hundredth place. The 9 in the thousandth place tells us to round the 6 up to a 7.
The density of this metal is approximately <u>4.17 grams per milliliter.</u>
Answer:
tens = 3
ones = 7
tenths = 0
Explanation:
Micropipette p-10 or P2 is designed to measure the volume in range (0.5µL - 10 µL). Micro pipette has four parts, plunger button, ejector button, volume display, and, dispensing tip. On volume display, there are 3 number section displayed. Most upper on is for <em>tens</em><em>, </em>the<em> </em>middle one is for <em>ones,</em><em> </em>and, the lower last one is for <em>tenths</em><em>. </em>For 3.7µL, number 3 will dial in the <em>tens </em>section and number 7 will dial <em>ones </em>section.
tens = 3
ones = 7
tenths = 0
This way, 3.7 µL volume can be measured using p-10 micropipette.
Answer:
1.08×10^25
Explanation:
9×2×6.02×10^23=1.08×10^25
Chlorine gas is Cl2
1. and C.
Terrycot is a fiber that is made by mixing two fibers. Terrycot is a blended fabric made of terylene and cotton. It has better absorbing power as compared to Terylene. Nylon and terylene are produced through condensation polymeriztation.
<em>Hope it helps...</em>
A silver ring contains 1.1 x 1022 silver atoms.
