WebIf an object has a density of 8.65 g/cm3, what is its density in units of kg/m3? A) 8.65 × 10-3 kg/m3 B) 8.65 × 10-7 kg/m3 C) 8.65 × 103 kg/m3 D) 8.65 × 101 kg/m3 E) 8.65 × 10-1 kg/m3 #23. If the walls in a room are 955 square feet in area, and a gallon of paint covers 15 square yards, how many gallons of paint are needed for the room? WebFrom the answer to problem 2, you know that 1 molcK+has a mass of 39 g. You need 12 * 39 = 468 g of K+. 6. You require 12 molcCa2+to replace 12 molcK+. BUT, only 6 moles of Ca2+are From the answer to problem 2, you know that a mole of Ca2+is 40 g and that 1 molchas a mass of 20g. In either case, the answer is 240 g. Keeping the
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Web9 jun. 2024 · So, 1000 g/kg does not affect significant figures in a calculation. Sandwiched zeroes DO count, except if no previous digits are nonzero. EX: 2002 has two significant zeroes, but 0.0103 has only 1 significant zero. Truong-Son N. · 1 · May 8 2024 Questions What are rounding and significant figures? Web1 Milligram (mg) is equal to 0.001 gram (g). To convert milligrams to grams, multiply the milligram value by 0.001 or divide by 1000. For example, to convert 200 mg to grams, divide 200 by 1000, that makes 0.2 gram is 200 mg. milligrams to grams formula gram = milligram * 0.001 gram = milligram / 1000 What is a Gram? photo feet
Solved How many mg does a 990. kg sample contain? 9.90 x 10
Web32) How many mg does a 643 kg sample contain? A) 6.43 × 10-4 mg. B) 6.43 × 107 mg. C) 6.43 × 10-3 mg. D) 6.43 × 106 mg. E) 6.43 × 108 mg. 33) How many cm3 are contained … WebThe formula to convert from mg to kg is: kg = mg ÷ 1,000,000 Conversion Example Next, let's look at an example showing the work and calculations that are involved in … Web1 kg = 10 6 mg = 1000000 mg The mass m in milligrams (mg) is equal to the mass m in kilograms (kg) times 1000000: m(mg) = m(kg) × 10 6 = m(kg) × 1000000 Example … photo feeder scanner reviews